Кафедри
Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/35393
Переглянути
3 результатів
Результати пошуку
Документ Methodical instructions for performing the laboratory work "Configuration of parts"(2023) Butova, O. A.; Samynina, M. G.; Domochka, Lidiia VladyslavivnaMethodical instructions for the laboratory work on the discipline «Fundamentals of Electronic Device Design » for students of all forms of education in the specialty 171 «Electronics» on the discipline «Fundamentals of Electronic Device Design», which is learned by the students of the «Industrial and Biomedical Electronics» department. SOLIDWORKS is a computer-aided design (CAD) system that allows you to create electronic models of parts and assembly units with the ability to generate working drawings based on them. In the process of preparing for the class, the student has to study questions about the features of using the SOLIDWORKS automated design system and master the skills of creating models in the program. In the course of performing this laboratory work, students work out the possibilities of creating configurations of parts in various ways and have to: − know the sequence of actions when building part models and the main methods of creating their configurations; − be able to apply the acquired theoretical knowledge when creating details, as well as configurations of these details. Methodological instructions include: − the purpose of work; − a step-by-step description of the sequence of work performance on an example; − tasks for the laboratory work; − control questions. Methodological instructions provide methods for creating configurations of parts and consider an example of step-by-step configuration creation in several ways, which will help in effective and practical mastering the material on the discipline «Fundamentals of Electronic Device Design». Performance and protection of laboratory work is carried out individually.Документ Assessing the informativeness of the controlled parameters in the task of identyfing the state of the system(Національний технічний університет "Харківський політехнічний інститут", 2022) Raskin, Lev Hryhorovych; Sukhomlyn, Larysa Vadymivna; Sokolov, Dmytro Dmytrovych; Domochka, Lidiia VladyslavivnaThe effectiveness of solving the problem of identifying the system state significantly depends on the number of controlled parameters and the degree of their informativeness. The traditional method for assessing the informativeness of these parameters is based on the measure of distance between the probability distributions of the values of the controlled parameter for different states of the system proposed by Kullback. The shortcomings of Kullback measure have been revealed. Firstly, the value of this measure is not normalised and is not limited from above. Secondly, this measure is asymmetric, i.e. its numerical value depends on the way its components enter the calculation ratio. The method for calculating the informativeness criterion proposed in this paper takes into account the uncertainty that arises due to the fuzzy description of the boundaries of the areas of possible values of the controlled parameters for each of the possible states of the system. An important enhancement of the known methods for assessing the informativeness of the controlled parameters is to take into account the real existing inaccuracy in estimating the values of the results of measuring these parameters themselves. These circumstances determine the subject and purpose of the study that is the development of a method for calculating the distance between the distributions of fuzzy values of the controlled parameter, free from the shortcomings of the Kullback measure. To calculate the measure of the distance between the distributions of the values of the controlled parameter under conditions of uncertainty of the initial data, described in terms of fuzzy mathematics, a symmetric criterion is proposed, which is easily calculated. Examples of the criterion calculation are given. The possibilities of increasing the level of informativeness of the criterion using analytical descriptions of membership functions of fuzzy values of the controlled parameter for different states of the system are considered.Документ Calculation of the transformers and electric machines characteristics(National Technical University "Kharkiv Polytechnic Institute", 2021) Shevchenko, V. V.; Domochka, Lidiia VladyslavivnaThis edition is dedicated to the implementation of calculation task "Calculation of the transformers and electric machines characteristics" on the discipline "Electric machines". The purpose of this discipline is to consolidate theoretical knowledge and develop practical skills for calculating the characteristics of transformers, alternation current (AC) electric machines and direct current (DC) electric machines. The objects of study are transformers and electric machines, which are the basis of electric power in various industries. The subject of this discipline are the electric machines, which are used in practice to convert one form of energy into another: mechanical energy to electrical (the generators), electrical energy to mechanical (the engines), and power transformers, which are used to convert the meanings of alternating current and voltage. After training, the student must know the structure, basic elements of the transformers and electric machines, there operation principle and characteristics, peculiarities of motors starting, the ways of rotation frequency control and braking. The student should be able to evaluate new electrical equipment, take into account technical and economic requirements. This assignment consists of five tasks. For each part, control questions and tasks are formulated, recommendations for their solution are given. Calculation tasks are the student’s final document to complete the discipline. The report on the done work must be finished in written form and defended by the examination date. The tasks and the volume of the work must be agreed by the lecturer of this discipline. The report should begin with a cover page, the sample of which is given in Appendix A. When drawing up a report, it is necessary to formulate the task, show the procedure for performing calculations: write down a formula, and then put numbers in this formula and show the result of the calculation. The report should contain the necessary diagrams and graphs. At the end of the report student has to give the list of information sources used in the work. Graphs and diagrams should be built on graph paper, indicating the scale and dimension of the physical quantity on the axes. If the graph was built on a regular sheet of paper, then a uniform "grid" should be drawn on the graph field. Students choose the number of a variant for the work according to the number in the academic group list. New modern notation symbol system of electrical, magnetic, mechanical and energy values, which correspond to the state standards, are used in this study course.