Optimization of key gear parameters to reduce weight
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Дата
2023
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Видавець
Харківський національний автомобільно-дорожній університет
Анотація
Problem. The problems of designing, and especially improving, mechanical gears are of key
importance in modern mechanical engineering and automotive transport. Gear transmissions are quite
widespread relative to other mechanical transmissions because they have a number of crucial
advantages. Gear transmissions are widely used in a variety of drives for vehicle components and
assemblies, with modern development trends aimed at reducing their weight and size. As the size of the
transmission decreases, the dimensions of other parts and assemblies also decrease, and, accordingly,
their cost. Therefore, research related to the study of the interdependence of the main parameters of
gears for the purpose of their further optimization does not lose its relevance. Goal. The main purpose of
this work is to study the dependence of the mass and dimensions of the gears under study on their main
parameters. Knowing the influence of various characteristics on the mass, it is possible to provide
recommendations for the design of gears to achieve their optimal (smallest) dimensions, which leads to a
number of significant advantages. Methodology. First of all, a rather detailed analysis of the scientific
literature is performed in order to identify the main statements regarding the influence of certain
parameters on the mass and dimensions of the designed gear. The very dependencies of the gear mass on
its various characteristics are found by applying a numerical method that is entirely based on the known
design dependencies for the design calculation of gears. Also, to compare the results obtained
analytically, the method of calculating the mass and dimensions by creating 3D models of gears in the
"Autodesk Inventor" environment is used in the work. Results. Based on the results obtained, it can be
noted that, ceteris paribus, including gear load, the weight is almost independent of the module and the
relative width ratio. At the same time, in some cases, a particular standard value can significantly affect
the weight of the gear, i.e., by selecting specific values, it is possible to reduce the weight of the gear by
about 15-25%. Originality. Useful results were obtained using a relatively affordable method. The
research was conducted both analytically and with the use of modern computer-aided design systems.
Practical value. The proposed recommendations for the rational choice of some characteristics of gears
will reduce the weight and dimensions of the mechanical drive.
Опис
Ключові слова
gear, optimization, face-width factor, gear weight, gear dimensions, gear ratio, зубчаста передача, оптимізація, коефіцієнт ширини зубчастого вінця, маса передачі, передатне відношення
Бібліографічний опис
Optimization of key gear parameters to reduce weight / Voropay A., Koriak O., Bogdan D., Neskreba E. // Автомобiльний транспорт : зб. наук. пр. / М-во освiти i науки України, Харків. нац. автомоб.-дор. ун-т ; редкол.: А. В. Гнатов (гол. ред.) та iн. – Харкiв, 2023. – Вип. 52. – С. 32–40.