Student's office: +359 2 965-3737
Dean's office: +359 2 965-2288
1947 - By Decision of the Council of Ministers, departments were opened at the Mechanical Faculty of the State Polytechnic, established in 1945. Among them is the "General Mechanical Science and Lifting Mechanisms" department - the prototype of today's "Machine elements and non-metal constructions" department.
1956 - The teachers of Machine Drawing moved to the newly created department "Descriptive Geometry and Machine Drawing". The main department is named "Machine elements and lifting - transportation equipment".
1962 - An independent department "Lifting - transportation, construction and mining machines" was established. The main department is named "Machine elements and theory of mechanisms and machines".
1968 - Some of the teachers moved to the newly created Department of Mechanical Engineering.
1974 - The department is divided into two independent departments: "Machine Elements" department - at the Faculty of Mechanical Engineering and "Theory of Mechanisms and Machines" department - at the Faculty of Mechanical Engineering.
1997 - By Decision of the Faculty Council, the department "Machine elements" and the laboratory of "Non-metallic materials and constructions" were merged into the department "Machine elements and non-metallic constructions".
The department is headed by:
Professor Dr Eng. Georgi Emanuilov Angelov: 1947-1969
Assoc. Prof. Dr Eng. Alexander Georgiev Vrigazov: 1969-1973
Assoc. Prof. Dr Eng. Mihail Spirov Konstantinov: 1973-1974
Assoc. Prof. Dr Eng. Petko Valev Yordanov: 1974-1989
Assoc. Prof. Dr Eng. Georgi Nikolov Dimchev: 1989-1992
Assoc. Prof. Dr Eng. Nikola Hristov Atanasov, Ph.D. Eng.: 1992 - 2009
Assoc. Prof. Dr Eng. Dimitar Nikolov Ralev: 2009 - 2014
Assoc. Prof. Dr Eng. Valentin Kamenov Dikov, Ph.D. Eng.: 2009 - 2018
Assoc. Prof. Dr Eng. Georgi Petrov Tonkov: 2018 - until now
International relations
The international cooperation of the "Machine Elements" department has developed in the following directions:
Programs and agreements on bilateral cooperation between individual departments, higher education institutions or institutes:
Participation in international events - congresses, conferences, symposiums:
Visits of foreign guests to the department:
Specializations of members of the department in foreign universities:
Phone: 02 965-2668
Room: 4432
E-mail: gptonkov@tu-sofia.bg
Phone: 02 965-2410
Room: 2238
E-mail: ganchev_d@tu-sofia.bg
Phone: 02 965-2996
Room: 4421
E-mail: lubomir_dimitrov@tu-sofia.bg
Phone: 02 965-2410
Room: 2238
E-mail: ganchev_d@tu-sofia.bg
Phone: 02 965-2668
Room: 4432
E-mail: gptonkov@tu-sofia.bg
Phone: 02 965-2410
Room: 2238
E-mail: staikov@tu-sofia.bg
Phone: 02 965-2404
Room: 2235
E-mail: radenkov@tu-sofia.bg
Phone: 02 965-3887
Room: 4424
E-mail: dcv@tu-sofia.bg
Phone:
Room: 4430
E-mail: elitsa_tomova@tu-sofia.bg
Phone:
Room: 4428
E-mail: mpanchev@tu-sofia.bg
Phone: 02 965-3885
Room: 4426
E-mail: vvi@tu-sofia.bg
Phone: 02 965-2778
Room: 4401
E-mail: sasho.draganov@tu-sofia.bg
Phone: 02 965-2480
Room: 2233
E-mail: evahri@tu-sofia.bg
Phone: 02 965-2888
Room: 4422
E-mail: vl_nikolov@tu-sofia.bg
Phone: 02 965-2886
Room: 4209
E-mail: tsonov@tu-sofia.bg
Phone: 02 965-3467
Room: 2233
E-mail: alaminov@tu-sofia.bg
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Engineering Design. The aim of education is to acquaint the students with specificity of the adhesive and coating materials and their applications. At the end of training the students have to be able to design different adhesive joints and coatings. The lectures generally consider the specific and potential applications of materials used as adhesives and coatings (protective, decorative and specialty) as well as their corresponding technologies. Additionally the students are acquainted with the criteria for their choice, the technologies for surface preparing and modification, the techniques and technologies for joining and coating deposition in respect to their useful structure and performance. The main aim of the course is the development of material choice, design and technological approach of the students’ skills.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the course is to provoke in students creative and specific innovative thinking in order to apply in practice the most modern advanced and “smart” materials. The course includes topics considering modern "smart" materials, nanomaterials and nanocomposite materials, as well as their application for creating innovative products. The principles of design of static structures and equipment with built-in sensors for structural helth monitoring are considered.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Mechanical engineering. The aim of the subject is to present the students with the modern smart materials and structures and their applications in the industry. The students acquire skills to choose alternative materials and sensors and to implement them in the construction of smart structures. The content of the lecturing material gives the students enough knowledge and understanding on the basic physical and chemical underlying principles behind the modern advanced and smart materials. The course introduces advanced materials for engineers, emphasizing the production / structure / property / function relation and application of a number of advanced materials. Topics include ultra light materials (production, processing and applications of cellular solids), biomaterials (classes and application of materials in medicine and dentistry), composites (classes and application), refractory materials and coatings for high temperature applications, shape memory alloys for MEMS, magnetorheological materials.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Mechatronic systems. The purpose of this discipline is to provide a more specialized knowledge of the composite materials, their properties, applications as well as the methods of manufacturing of large scale different products. Passing the course, students have to achieve experience and useful skills in processing of composite materials. They are supposed to become well trained engineers able to control the technological operations as well as to carry out mechanical tests and other scientific investigations of the end properties of the articles. The lectures represent properly systemized knowledge of the composite materials. The focus is put especially on the recent achievements in the field of heterophase materials, the complex relationships between their content and specific properties. There are discussed also the modern high-tech and ecologically-sound methods of manufacturing the articles being composite products by nature. Some of them manifest really exceptional quality and exploiting characteristics.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is to provide students with in-depth knowledge in the field of some of the most important construction materials that determine the technological face of the global economy today. They will allow them to more freely and rationally choose the appropriate materials for different, including particularly responsible technical applications. In addition, they will be able to optimally match the technological approaches to production with the construction and design of the final products. Special attention is paid to the nature of composite materials in the study material. The importance of the physicochemical nature of their high strength and their other valuable properties is emphasized. The main factors that influence the properties of composites are considered: composition, micro- and macrostructure of the individual phases and adhesion interaction between them. The direct influence of the processing conditions and the technological equipment on the operational characteristics of the products is clarified. The favorable possibilities for obtaining highly functional forms and ergonomic constructions from composite materials in compliance with the highest modern standards for environmental friendliness of industrial production are also revealed.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Mechanical and Device Engineering. The course aims to upgrade and improve students' skills in designing statically and dynamically loaded structures of varying complexity with the use of specialized CAD software in the field of mechanical engineering. The design process is entirely in CAD environment. It starts with a clearly formulated technical assignment, analytical determination of input parameters - geometric, force, kinematic, as well as certain quality indicators. A CAD model of the structure is created. Software calculations are performed. The construction is optimized according to certain criteria. Constructive documentation is prepared.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the subject is to present to the students the current principles of plastic parts design and plastic manufacturing machines and processes. The students acquire skills for digital prototyping, testing, analyzing and optimization of design of plastic manufacturing machines, processes and plastic parts using high class CAD/CAM/CAE products. The lectures are prepared so that they provide a complete basic knowledge on current principles of design of plastic parts and machines and processes for their manufacturing. The students gain specific skills on the design, analysis and optimization of the plastic products using high class CAD/CAM/CAE software. Advanced design tools like non-linear stress analysis, parametric design and topology optimization are also included in the course.
Facultative subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering. The course aims to upgrade and consolidate students' design skills with specialized CAD software in the field of mechanical engineering. It is designed entirely in CAD environment. The logic of the software used is studied. Sketches, CAD models of parts, assembled units and precision drawings are being developed – both assembly and working. Static structures and transmission elements shall be constructed. Multivariate engineering calculations are performed. Many electronic catalogs are utilized – from the software used and company ones. Huge libraries are used with standard elements embedded in the CAD system, which facilitates and speeds up the design process. Optimization is performed according to set criteria. Strength calculations, geometric measurements, animations and simulations of the designed structures are performed in software environment.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is to expand and specialize students’ knowledge in field of engineering analysis of single parts and assemblies using middle and high class CAD/CAM/CAE software. The main topics: Linear static stress-strain analysis; Modal and vibration analysis; Heat transfer and thermal stress analysis, fatigue analysis; Frame analysis; Dynamics analysis. The students gain specific skills also in advanced digital tools for analysis like non-linear static stress-strain analysis, parametric modeling and topology optimization. Attention is paid to the possibilities for simulation composite material behavior and management of manufacturing processes.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the course is to acquire advanced skills with specialized modules for modeling, design, analysis and management of production processes using CAD/CAM/CAE software products of middle and high class. The main topics: Freeform design and analysis; Design of complex shape parts; Surface modeling and editing; Sheet metal design; Design of parts manufactured by different processes (Casting, Moulding, Forming, Machining, Additive manufacturing etc.); Design of parts made from non-metal and composite materials; Design and tolerance analysis of assemblies.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering. The aim of the course is to develop and validate design and technological skills and to build technically correct approach of the trained students when designing in the field of mechanical engineering with specialized CAD software. During the scheduled hours, students study and create a project in which a complete design of one or many types of products can be carried out, as well as different types of product development. They works with the desired standard, which can be automatically selected from the software system used and replaced according to different requirements. When designing a given object, a large number of standard elements are used, which are downloaded from the CAD system libraries. Sketches are created in the design, details are modeled, assemblies are assembled, and engineering calculations are made. It is possible to create, download, store and use different formats and to work with them, including those from other CAD systems. Design documentation is prepared including assembly drawings, working drawings and specifications.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering. To provide knowledge about integrated and constitutive manufacturing and about planning and operational management of modern manufacturing processes aided by information technologies. This allows a deeper understanding of the problems occurring during the creation of open manufacturing systems. Contents of the course: current problems of the manufacturing systems; integration of manufacturing and computer technologies; origins, development and existing problems of the integration of separate technological units and the building of technological cells, modules and flexible manufacturing systems; intelligent manufacturing systems and equipment and factories of the future.
Facultative subject from the curriculum for training of students to obtain Master's degree, specialty Mechanical engineering. To provide knowledge about integrated and constitutive manufacturing and about planning and operational management of modern manufacturing processes aided by information technologies. This allows a deeper understanding of the problems occurring during the creation of open manufacturing systems. Contents of the course: current problems of the manufacturing systems; integration of manufacturing and computer technologies; origins, development and existing problems of the integration of separate technological units and the building of technological cells, modules and flexible manufacturing systems; intelligent manufacturing systems and equipment and factories of the future.
Optional Compulsory subject from the curriculum for training of studentsto obtain Master's degree, specialty Mechatronic systems. To provide knowledge about integrated and constitutive manufacturing and about planning and operational management of modern manufacturing processes aided by information technologies. This allows a deeper understanding of the problems occurring during the creation of open manufacturing systems. Contents of the course: current problems of the manufacturing systems; integration of manufacturing and computer technologies; origins, development and existing problems of the integration of separate technological units and the building of technological cells, modules and flexible manufacturing systems; intelligent manufacturing systems and equipment and factories of the future.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Engineering Design. Upgrading and consolidating knowledge in the field of CAD modeling related to solutions in interior and exterior design. To provide and increase the opportunities for more effective professional dialogue and joint work between the specialists in "Engineering Design" and the specialists in the mechanical engineering specialties with the aim to achieve positive professional results. The lecture course includes the following main points, which are supplemented by laboratory exercises: introduction to the logic of the CAD system Inventor; three-dimensional modeling of details (elements) and assembled units of different complexity; design and layout – material selection, colours, shapes, dimensions; optimization according to a given criterion; engineering software calculations; engineering analysis, construction documentation.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the course is to expand and specialize students’ knowledge in field of engineering analysis of single parts and assemblies using middle and high class CAD/CAM/CAE software. The main topics: Linear static stress-strain analysis; Modal and vibrational analysis; Heat transfer and thermal stress analysis fatigue analysis; Frame analysis; Dynamics analysis. The students gain specific skills also in advanced digital tools for analysis like non-linear static stress-strain analysis, parametric modeling and topology optimization. Attention is paid to the possibilities for simulation and management of manufacturing processes.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Engineering Design. The course aims to help students in acquiring the analytical and software methods for designing household products as well to explain their manufacturing features. The course covers the stages from the origin of the idea for constructing a household product to the possibility of its realization. On the one hand the specificity of the elements in the design of products is considered, and on the other the possibilities for their production in terms of the "technology-machine-tool-material". Special attention is paid to structural, technological and functional characteristics of engineered products and their durability. Emphasis is put on the possibility of optimization to achieve minimum cost and maximum realization of the designed products.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The course aims to acquaint students with the basic methods of design and engineering of new household products, distinguishing and combining the roles of designer and engineer in the development process of an innovative engineering product. The course studies the methods for designing new household items, their functional characteristics and their main components. Attention is paid to the stages of design, the main structural forms, the manufacturability of the structure, the possible variants for its production and the composing materials.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The discipline aims to gain the students knowledge for the structure and properties of the composite materials, the choice of effective technological processes for manufacturing and methods for design of innovative products. The course teaches in design of innovative products from polymer, ceramic or metal matrix composites and enriches the engineering culture of knowledge about the nature of composite materials and the factors determining the properties and possibilities of their regulation; criteria for selection of engineering composites and their possible substitution; technologies to produce high-quality composites and related products; basic principles and specific features in the design of innovative products from composites; efficient applications.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Engineering Logistics. The course is aimed to teach the students to handle tasks, connected with adopting driving systems in the technique and to use a scientific approach for choosing, constructing and optimizing these systems for achieving certain goals. Course examines: the widest used mechanical meshes, used with mechanical transmissions for achievement of certain force and cinematic parameters; driving machines for the transmissions and types of driven machines and their parts.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the course is to acquaint students with the ecodesign approach, which takes into account environmental factors in the design and development of engineering products during each stage of their life cycle, with modern technologies for recycling of materials and European directives and standards for product safety. The course teaches students to apply ecodesign strategies and to choose non-toxic and regenerative materials in the design of innovative products, suggesting their introduction into new production cycle after physical and moral wear.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the subject is to present the students with the modern methods for surface engineering, the specifics and possible applications of adhesives, thin films and coatings, as well as the adhesive joining techniques and coating techniques. The content of the lecturing material includes the types of adhesives and their specific properties, the design of adhesive joints, types of treatments and technologies for surface modification of engineering products, properties and methods for obtaining metal, polymer, enamel, glass and ceramic coatings and thin films. The knowledge and skills acquired during the study of this discipline are practically necessary for the overall professional development of the mechanical engineer, who will competently apply the adhesives and their respective bonding techniques, thin films and coatings.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The main goal of graphic design is to achieve effective visual communication and transmission of a message accessible to the user. In order for the user to experience emotional satisfaction, it is necessary to comply with basic requirements such as readability and intelligibility of the text, as well as an aesthetically sound overall composition. In this course students will gain knowledge of basic compositional principles, optical equilibrium, shape categories and their combinations. They will develop practical skills in color and the impact of colors on the user, color harmonies and contrasts. They will get acquainted with the techniques for printing on polymer products. In the lecture course students will gain knowledge about the different types of proportions and their use in compositions to achieve functional and aesthetically sound graphic design. They will also acquire knowledge about the quality of text transmission in visual communication, related to ergonomic norms and standards, methods for creating better readability and comprehensibility of the message. At the end of the course, students will be introduced to the machines and technologies for prepress, as well as various techniques for overprinting (such as embossing, hot and cold printing, etc.). The techniques for letterpress, gravure, offset, screen printing as well as the indirect methods for transferring printing on polymer products are considered.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Mechanical and Device Engineering. The aim of the course is to acquaint students with modern high-tech engineering polymer and ceramic materials, their features, properties and applications. Students must acquire skills in choosing the appropriate material depending on the type of product, operating conditions and technical requirements. The topics of the lecture material enable students to gain knowledge about the structure, properties and applications of thermoplastic (amorphous and crystal-amorphous) and thermosetting engineering polymeric materials and some elemental-organic compounds; aging, stabilization and modification of polymers; methods for evaluation and analysis of their structure and properties. The course also examines the traditional and innovative applications of engineering adhesives, types of treatments and technologies for surface modification of engineering products, properties and methods for obtaining metal, polymer, enamel, glass and ceramic coatings and thin films. Students gain sufficient skills to select the appropriate material for the production of a particular product.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Engineering Design. The main objective of the course is consolidation and upgrading of the knowledge acquired by the students in design and computer aided design of various technical objects. The course studies the logic behind the function of specialized CAD software. Attention is paid to the layout when designing various technical objects. Emphasis is placed on techniques in the creation of surface shapes, the material selection, the color gamut of the individual elements, the manufacturability of the final product, the possibilities for its production, the degree of functionality and maintainability, as well as its aesthetics, environmental friendliness and low cost. The possibilities and advantages of using CAD systems in product design are evaluated. Ways to document and work with different files are discussed.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Mechanical and Device Engineering. Students will acquire knowledge and skills so that they can cope with certain tasks related to the application of drive systems in engineering, and to apply an optimal approach in the selection, design and optimization of these systems. The course mainly deals with mechanical gears, electro-power machines and electronic equipment for control and management, applicable in electromechanical transmissions to achieve certain power and kinematic parameters.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Mechanical engineering. To develop knowledge of methods and tools for process automation and management of engineering data, typical for different phases of the life cycle of the products of mechanical engineering and high-tech electronics, as well as methods for their arrangement and optimization by introducing electronic workflows and by managing cooperation. The main topics concern: The life cycle phases and transitions between them; The structure and configuration of the product life cycle; Methods and tools for configuration management product; Classification of components and construction of classifiers; Management of projects and programs with the introduction of new products (NPI); Management of CAD / CAM engineering data and engineering modifications and changes; Structuring and reuse of corporate knowledge; Managed collaboration across multiple offices and subcontractors; Data exchange with ERP systems.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Engineering design. The discipline Machine Elements is a constructive discipline with a practical focus. The study aims to form knowledge and skills for functional and strength calculation, geometric dimensioning and optimization of machine elements, assemblies and mechanisms, as well as for the development of structural documentation from assembly and detailed drawings, selection of materials, production technologies and standard elements, working with reference materials, catalogs and specialized CAD programs. In the lecture course, the seminars, and the laboratory exercises general-purpose machine elements are considered, such as permanent and non-permanent joints, elastic elements, axles, shafts, bearings, and various types of mechanical drives such as gear, belt, chain, friction, etc. The basic principles of the mechanical engineering design are presented, based on criteria for operability, load-carrying capacity, durability and economy.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Engineering logistics. The discipline Machine Elements is a constructive discipline with a practical focus. The study aims to form knowledge and skills for functional and strength calculation, geometric dimensioning and optimization of machine elements, assemblies and mechanisms, as well as for the development of structural documentation from assembly and detailed drawings, selection of materials, production technologies and standard elements, working with reference materials, catalogs and specialized CAD programs. In the lecture course, the seminars, and the laboratory exercises general-purpose machine elements are considered, such as permanent and non-permanent joints, elastic elements, axles, shafts, bearings, and various types of mechanical drives such as gear, belt, chain, friction, etc. The basic principles of the mechanical engineering design are presented, based on criteria for operability, load-carrying capacity, durability and economy.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering . The discipline Machine Elements is a constructive discipline with a practical focus. The study aims to form knowledge and skills for functional and strength calculation, geometric dimensioning and optimization of machine elements, assemblies and mechanisms, as well as for the development of structural documentation from assembly and detailed drawings, selection of materials, production technologies and standard elements, working with reference materials, catalogs and specialized CAD programs. In the lecture course, the seminars, and the laboratory exercises general-purpose machine elements are considered, such as permanent and non-permanent joints, elastic elements, axles, shafts, bearings, and various types of mechanical drives such as gear, belt, chain, friction, etc. The basic principles of the mechanical engineering design are presented, based on criteria for operability, load-carrying capacity, durability and economy.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechatronic systems. The discipline Machine Elements is a constructive discipline with a practical focus. The study aims to form knowledge and skills for functional and strength calculation, geometric dimensioning and optimization of machine elements, assemblies and mechanisms, as well as for the development of structural documentation from assembly and detailed drawings, selection of materials, production technologies and standard elements, working with reference materials, catalogs and specialized CAD programs. In the lecture course, the seminars, and the laboratory exercises general-purpose machine elements are considered, such as permanent and non-permanent joints, elastic elements, axles, shafts, bearings, and various types of mechanical drives such as gear, belt, chain, friction, etc. The basic principles of the mechanical engineering design are presented, based on criteria for operability, load-carrying capacity, durability and economy.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechatronics. The discipline Machine Elements is a constructive discipline with a practical focus. The study aims to form knowledge and skills for functional and strength calculation, geometric dimensioning and optimization of machine elements, assemblies and mechanisms, as well as for the development of structural documentation from assembly and detailed drawings, selection of materials, production technologies and standard elements, working with reference materials, catalogs and specialized CAD programs. In the lecture course, the seminars, and the laboratory exercises general-purpose machine elements are considered, such as permanent and non-permanent joints, elastic elements, axles, shafts, bearings, and various types of mechanical drives such as gear, belt, chain, friction, etc. The basic principles of the mechanical engineering design are presented, based on criteria for operability, load-carrying capacity, durability and economy.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering . The discipline Machine Elements is a constructive discipline with a practical focus. The study aims to form knowledge and skills for functional and strength calculation, geometric dimensioning and optimization of machine elements, assemblies and mechanisms, as well as for the development of structural documentation from assembly and detailed drawings, selection of materials, production technologies and standard elements, working with reference materials, catalogs and specialized CAD programs. In the lecture course, the seminars, and the laboratory exercises general-purpose machine elements are considered, such as permanent and non-permanent joints, elastic elements, axles, shafts, bearings, and various types of mechanical drives such as gear, belt, chain, friction, etc. The basic principles of the mechanical engineering design are presented, based on criteria for operability, load-carrying capacity, durability and economy.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is to provide theoretical knowledge and practical skills in the field of modern polymer processes technologiesand machines for manufacturing. This will provide the ability to choose manufacturing process, suitable equipment and parameters tailored to the complexity and planned production quantities. The main topics included in the course concern: Basic processes, technologies, installation and equipment for the manufacturing of polymer products. The principal polymer processing technologies are reviewed. This includes: extrusion, compression molding, blow molding, thermoformingetc. Special attention is paid to the influence of processing parameters on the quality of the final product.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is for students to gain knowledge on the structure and properties of elastomers, equipment and technological processes for the production of products and to be able to competently apply rubber materials, as well as to design technological lines and prepare technological regulations. The course deals with topics related to the characteristics of elastomers; structure, properties and application of different types of elastomers with universal and specific purpose; construction of rubber compositions, molding methods. Theoretical foundations of vulcanization and industrial vulcanization methods; technical rubber products (conveyor belts, belts, hoses); pneumatic tires, sizing; rubberizing of metal products.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the course is to provide students with knowledge for a deeper understanding of the behavior of different groups of materials (metals, polymers, ceramics and composites based on them) during their processing and usage. The students will understand their specific composition, structure and properties in order to apply them to innovative engineering products. The course includes topics for polymers and engineering ceramic materials, which are the basis of the so-called "high technology". Basic classes of structural polymeric and ceramic materials and their applications in unique or special products are considered. Materials with high thermal, chemical, electrical and physical properties are studied. The structure-properties relationship is revealed. Attention is paid to the influence of technological approaches on the operational properties of the final products. In the laboratory exercises, students study and compare the properties of different groups of materials in order to conduct a reasonable (by properties, manufacturability, affordability, environmental friendliness and price) choice of material in the design of innovative products.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is to acquaint students with the modern methods of control and diagnostics of polymeric materials and products. Students acquire the skills to choose the appropriate method or combination of methods depending on the type of material, the geometric features of the workpiece and the operating conditions of the products. Habits are acquired to reduce the influence of the subjective factor in evaluating the results. The topic of the lecture material enables the students to acquire sufficient knowledge and skills about the possibilities of the basic methods of non-destructive and destructive control for the implementation of incoming, inter-operative, outgoing and in-service control of polymer materials and products. Methods for determining physical, mechanical, thermal, tribological and electrical properties are considered. Students acquire sufficient specific skills to select the most appropriate method or group of methods for a particular practical assignment.
Optional Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering. The aim of the subject is to present the students with the modern non-destructive testing methods. The students acquire skills to choose alternative non-destructive testing methods or combination of them considering the material type, geometry considerations and exploitation conditions. Habits for reduction the influence of the subjective factors are acquired. The content of the lecturing material gives the students enough knowledge and skills on the basic non-destructive testing methods for initial, inter processing and final control of materials, assembly structures and equipment. The students gain specific skills in choosing the most suitable method or group of methods for the solution of a particular practical problem.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Mechanical engineering. The aim of the course is to present the students with the modern non-destructive testing methods. The students acquire skills to choose alternative non-destructive testing methods or combination of them considering the material type, geometry considerations and exploitation conditions. Habits for reduction the influence of the subjective factors are acquired. The content of the lecturing material gives the students enough knowledge and skills on the advanced non-destructive testing methods for initial, inter processing and final control of materials, assembled structures and equipment. The students gain specific skills in choosing the most suitable method or group of methods for the solution of a particular practical problem.
Optional subject from the curriculum for training of students to obtain Master's degree, specialty Mechatronic systems. The aim of the subject is to present the students with the advanced non-destructive testing methods. The students acquire skills to choose alternative non-destructive testing methods or combination of them considering the material type, geometry considerations and exploitation conditions. Habits for reduction the influence of the subjective factors are acquired. The content of the lecturing material gives the students enough knowledge and skills on the advanced non-destructive testing methods for initial, inter processing and final control of materials, assembly structures and equipment. The students gain specific skills in choosing the most suitable method or group of methods for the solution of a particular practical problem.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Medical Engineering. The aim of the course is to acquaint students with the modern non-metallic materials used in medicine and medical equipment. Students must acquire skills and be able to choose the right material depending on the type of product, the operating conditions and the requirements for biocompatibility. The content of the lecture material enables the students to obtain sufficient knowledge of non-metallic structural and biomaterials and their products, as well as methods for evaluating, analyzing and examining their structure and properties. The discipline also examines traditional and innovative applications of engineering adhesives, thin films and coatings in medicine and medical technology. Students acquire sufficient specific skills to select the right material for a particular medical device. Habits and skills are acquired to reduce the influence of the subjective factor when evaluating test results and experiments.
Compulsory subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering. The aim of the course is to give students a general idea and basic knowledge of the design, calculation and operation of general-purpose plastic and ceramic machine elements, applying current European and international standards. The modern tendencies in the design of the plastic and ceramic machine elements are studied, including general characteristics, concerning the basic principles of the design, the working criteria and the selection of material. A unified approach is observed when considering the individual machine elements: nature and purpose; geometry; kinematics and dynamics (where available), respective loads; failures and working criteria; materials and allowable stresses; constructive design, etc.
Facultative subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is to provide theoretical knowledge and practical skills in the field of modern production technologies for polymer packaging. This will provide the ability to choose manufacturing method, suitable equipment and process parameters tailored to the complexity and planned production quantities. The main topics included in the course concern: Basic methods, technologies, tools and equipment for the production of packaging from polymer materials. The principal processing technologies and machines for polymer packaging are reviewed. Special attention is paid to the influence of processing parameters on the quality of the final product.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is to acquaint students with the modern engineering polymer materials, their particularities, properties and applications. Students must acquire skills and be able to choose the right material depending on the type of product, the operating conditions and the technical requirements. The content of the lecture material enables the students to obtain sufficient knowledge about the structure, properties and applications of thermoplastic (amorphous and crystalline-amorphous) and thermosetting engineering polymeric materials and some organo-elemental compounds; aging, stabilization and modification of polymers; methods for evaluating, analyzing and examining their structure and properties. Students gain sufficient skills to select the right material to produce a particular product.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the course is to acquaint students with the peculiarities of the design of polymeric machine elements, taking into account the specifics of the physical and mechanical properties of the material. Skills for selection of materials depending on the application of the designed machine elements, their strength calculation and testing are acquired. The lecture material allows students to gain knowledge about the advantages of using modern polymeric materials in the manufacture of machine elements, the limits of their application and the basic design principles. Emphasis is placed on those machine elements where the strength / weight ratio, the low coefficient of friction, which excludes the need for lubrication, and the possibility of cost-effective production of parts with a complex shape are essential.
Facultative subject from the curriculum for training of students to obtain Master's degree, specialty Mechatronic systems. To develop knowledge of methods and tools for process automation and management of engineering data, typical for different phases of the life cycle of the products of mechanical engineering and high-tech electronics, as well as methods for their arrangement and optimization by introducing electronic workflows and by managing cooperation. The main topics concern: The life cycle phases and transitions between them; The structure and configuration of the product life cycle; Methods and tools for configuration management product; Classification of components and construction of classifiers; Management of projects and programs with the introduction of new products (NPI); Management of CAD / CAM engineering data and engineering modifications and changes; Structuring and reuse of corporate knowledge; Managed collaboration across multiple offices and subcontractors; Data exchange with ERP systems.
Optional subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering. Aim of the course is to provide students with knowledge about nature and specifics of the reinforced structural polymers, their processing and most important applications. The properties of these composites are discussed as well as their applications for constructive purposes. This discipline presents the specialized information for modern polymeric composites. To obtain better performance as structural materials they ate reinforced with different mineral or polymeric fillers. Most successful are extended fibres that could be linear complexes with high orientation in one direction, mono crystals or different layers of fabrics, mats and other types plane or 3D reinforcement. There are observed the most popular construction applications of RSP and the factors that have influence on their properties including composition, nature of matrix and reinforcement, processing technologies and exploiting conditions. In the process of the laboratorial exercises, students must gain skills to manufacture and test samples of RSP.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. Aim of the subject is the students to gain theoretical knowledge and skills in mechanics of the polymer materials and methods for design and sizing of plastic structural elements and assemblies. The course covers the characteristics of the mechanical behavior of polymeric materials under different types of loads, models and theories for mathematical description of the rheological properties of materials with viscoelastic behavior and methods for sizing and design of plastic elements and products taking into account creep and relaxation of stresses.
Facultative subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the course is for students to gain knowledge on the structure and properties of elastomers, equipment and technological processes for the production of products and to be able to competently apply rubber materials, as well as to design technological lines and prepare technological regulations. The course deals with topics related to the characteristics of elastomers; structure, properties and application of different types of elastomers with universal and specific purpose; construction of rubber compositions, molding methods. Theoretical foundations of vulcanization and industrial vulcanization methods; technical rubber products (conveyor belts, belts, hoses); pneumatic tires, sizing; rubberizing of metal products.
Optional subject from the curriculum for training of students to obtain Bachelor's degree, specialty Mechanical Engineering. The aim of the course is to familiarize students with the modern methods of testing and diagnostics of materials, machines and equipment. Students acquire the skills to choose the appropriate method or combination of methods, depending on the type of material, geometric features of the object under examination and operating conditions. Habits are acquired to reduce the influence of the subjective factor in evaluating the results. The topic of the lecture material enables the students to acquire sufficient knowledge and skills about the possibilities of the basic methods of destructive and non-destructive control, vibrо- and thermal diagnostics for the implementation of incoming, inter-operative, outgoing and in-service control of materials, equipment and facilities. The methods for estimating the residual resource are discussed. Students acquire sufficient specific skills to select the most appropriate method or group of methods for a particular practical assignment.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The aim of the subject is to present to the students the current principles of plastic parts design and the tools used to produce them. The students acquire skills for digital prototyping, testing, analyzing and optimization of design of the plastic part and tool using high class CAD/CAM/CAE products. The lectures are prepared so that they provide a complete basic knowledge on current principles of design of tools for plastic parts manufacturing. The students gain specific skills on the design, analysis and optimization of the plastic products, tools and its components and parameters using high class CAD/CAM/CAE software.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Machines and Technologies in the Plastics Industry. The course is meant to provide students with deeper knowledge of the full life cycle of such a great and important branch of products as plastics. This knowledge will allow them as engineers to estimate the potential of the polymeric materials to be used in different products more than once. It could be achieved by means of relevant technologies for cascade stages of treatment of waste plastics up to their recycling. The course is focused on efforts to fulfil two important both ecological and economic tasks: reducing the technogenic pollution of the environment and use to the best advantage of the organic materials by enlarging the scope of the modern resource- end energy saving technologies. A challenge but also a convenience in regard to polymer engineering is the possibility some effective methods for manufacturing of plastics to be adapted for recycling of such materials using the same equipment.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the subject is to present the students with the modern destructive and non-destructive testing methods. The students acquire skills to choose the appropriate testing methods or combination of them considering the material type, geometry considerations and exploitation conditions. Habits for reduction the influence of the subjective factors are acquired. The content of the lecturing material gives the students enough knowledge and skills on the basic non-destructive testing methods for initial, inter processing and final control of materials, assembly structures and equipment. The students gain specific skills in choosing the most suitable method or group of methods for the solution of a particular practical problem.
Compulsory subject from the curriculum for training of students to obtain Master's degree, specialty Advanced Product Design Engineering. The aim of the subject is to present to the students the main principles of plastic parts design and the tools (mostly injection and compression molds and extrusion dies) used to produce them.
The lectures are prepared so that they provide a complete basic knowledge on the design of the plastic parts and tools for their manufacturing. The students acquire skills to select method for manufacturing of the part, suitable design and material of the part, tool and its components. The content also provides the students with a comprehensive and concise description of all the relevant components of the tools in a practical, easy to understand presentation. The students gain specific skills on the design, analysis, testing and optimization of the plastic parts, tools and its components and manufacturing process parameters using high class CAD/CAM/CAE software.
Факултативна учебна дисциплина от учебния план за обучение на студенти за ОКС „магистър“, специалност „Машини и технологии в полимерната индустрия”. Обект на курса е да се запознаят студентите с възможностите за модификация на свойствата на полимерните материали и изделията произведени от тях. Обръща се внимание, както на химическите модификатори, така и на прилагането на различни физични полета и тяхното взаимодействие с материала. Дисциплината включва теми, които обхващат основните методи, технологии и технологично оборудване за модификация на полимерни материали и изделия на тяхна основа. Разглеждат се основните видове добавки в полимерните материали – стабилизатори, пластификатори, огнезащитни добавки, смазочни материали, антистатични добавки, избистрящи и функционализиращи агенти. Обръща се специално внимание на технологиите за радиационна и термообработка.