In order to solve the problem of large vibration of a hybrid powertrain bus in actual operation,the vibration acceleration test and vibration isolation performance analysis of the original mounting system are carried out.Based on the vibration isolation theory,the mounting vibration isolation rate and vehicle vibration acceleration are taken as evaluation indexes,and the mounting cushion stiffness and installation angle are taken as variables,symmetrical and asymmetric mounting system layout schemes are used to optimize the engine end mount with the worst vibration isolation performance,and the vibration data of the two mounting states are collected and compared with the original state.The results show that the asymmetric mounting scheme is more suitable for the layout of hybrid powertrain mounting system under unilateral tension.
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