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¡¾Abstract¡¿Aiming at the whine noise problem on main reduction gear of a pure electric vehicle£¬coupling vibration simulation model of transmission gear drive system is built using Masta softwareand main reduction gear is taken as the research object£® Focusing on influencing factors of two main parameters£¬gear system coupling stiffness and dynamic transfer error£¬influence regularity simulation ofgear dynamic coupling force is made to get sensitivity of whine noise influenced by all factors£® £Òesearch results indicated that we can reasonably adjust the influence factors of coupling stiffness and dynamic transfer error to effectively reduce gear vibration and improve whine noise caused by vibration£®

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