http://vestnik.donstu.ru Вестник Донского государственного технического университета БЕЗОПАСНОСТЬ ДЕЯТЕЛЬНОСТИ ЧЕЛОВЕКА SAFETY OF HUMAN ACTIVITY УДК 62-7 Simulation of vibration and noise of belt gearing A.N. Chukarin1, M.A. Gapova2 1 Don State Technical University, Rostov-on-Don, Russian Federation 2 Kabardino-Balkarian State University, Nalchik, Russian Federation Моделирование вибрации и шума ременных передач А. <...> Нальчик, Российская Федерация The aim of this work is to find the methods of reducing noise and vibration in the belt drive of the electromechanical drive of the selected technological equipment. <...> Thus, we are having more comfortable working conditions in the workplace in compliance with the sanitary standards of noise and vibration. <...> The noise abatement techniques and the simulation of the vibration of the grinding woodworker flexible gearing are considered. <...> Modeling was performed with the introduction of Euler variables. <...> The simulated dependences allow by calculation determine noise levels and load characteristics of the selected equipment. <...> The comparison between the expected noise levels and the sanitary standards allow determining the exceedance and the sources of its generation. <...> Introduction: Transmissions with flexible connection, to which strap transmissions behave to, are becoming more and more common in the technological equipment. <...> This is especially true to the high-speed and low-rate equipment; in particular, to grinding woodworking machine tools, tool-grinding and drilling machine tools that do not have a gear drive, and their spindles are rotated through the driving belts. <...> DOI 10.12737/12604 2015, №3(82), 96-101 выбранного The research is done within the frame of the independent R&D. E-mail: marina_agm@mail.ru Работа выполнена в рамках инициативной НИР. 96 Безопасность деятельности человека Чукарин А. <...> In the established operating mode, the engine torque is balanced by the point of cutting forces. <...> To the driven pulley, the periodic revolting moment of cutting forces ∆М = М0 sin (ωt) acts, where ω is circular rotational speed, rad/s. <...> To determine the vibration resistances of the belt drive branches as a moving flexible connection, we use the Euler variables. <...> On this base, considering the known dependences of the natural oscillation frequencies of the flexible coupling, an acoustic model of a linear source is accepted. <...> Then the well-known equation of oscillations of flexible connection <...>