关键词: 轰鸣, 模态解析, 轰鸣机理, 离合器优化, 振动吸收器

Abstract: In response to the unusually obvious booming problems of the rear-wheel drive vehicles during operation, the booming tests were conducted on the entire vehicle to confirm the booming states. At the same time, the bench sweep frequency tests were performed on the transmission systems of the rear-drive vehicles to study the influences of the transmission system resonance mode on the booming vibrations. Building the multi-body dynamics model of the vehicles with the help of ADAMS software, using the model after the benchmarking to perform modal analysis calculations to study the mechanism of booming vibrations, and then a plan was formulated to improve the booming vibrations, and to verify the booming vibrations on the actual vehicles. The results show that the improvement plan for the clutch stiffness and the vibrations of the drive shafts may effectively solve the booming problems of the rear-drive vehicles.

Key words:  , booming, modal analysis, booming mechanism, clutch optimization, vibration absorber