Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : August 07, 2016 - August 10, 2016
The drive axle of one front-engine rear-drive (FR) car vibrates strongly at Tip-in with high level noise in the cabin, while the vibration and noise consist of mainly second and forth order of engine rotation speed. Multi-body dynamics model is built to study how the vibration is excited and comes into being. The coupling vibration theory of drive axle pitch motion and powertrain torsional motion is analyzed by the model and vehicle test, the results show that powertrain torsional vibration will act on the drive axle through tire and excite its pitch vibration. Two ways to improve vibration performance of rear axle are given and simulation verification is done.
