关键词: 振动与波, 动力总成, 悬置系统, 解耦

Abstract: The commonly used domestic and foreign decoupling methods are introduced. A model of powertrain mounting system with six degrees of freedom is established. Aiming at the vibration problem of some passenger cars, a test and a vibrationisolation performance analysis of the original mounting system are carried out. Taking the stiffness and installangle of the mounts as variables, improvement of design is done based on the energy decoupling theories to improve vibrationisolation performance of the mounting system. The vibration test of the entire vehicles mounting system is done, and the testing data before and after the improvement of the system is compared. It is proved that the improved design is effective and rational.

Key words: vibration and wave, powertrain, mounting system, decoupling