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实例1:一辆全顺汽车,车速在40～50km/h时,方向盘抖振强烈,而在其余车速时正常。检查时发现,传动轴中间轴后端的支承轴承径向间隙过大,蜂窝状橡胶垫破损,更换该支承轴承总成后,故障排除。 因该故障部件的破损,使传动轴跳动加剧,且减振功能削弱,从而使传动轴的振动传到了车身,且其振动的频率随车速的变化而变化。当车速为40～50km/h时,传动轴传给车身的振动频率接近于方向盘的固有频率,引发方向盘共振,因而
Example 1: A Transit car, the speed of 40 ~ 50km / h, the steering wheel strong vibration, and the rest of the normal speed. Check found that the drive shaft countershaft back-end bearing radial clearance is too large, honeycomb-shaped rubber pad damage, replace the bearing assembly, the troubleshooting. Due to the failure of the damaged parts, so that the transmission shaft beating more aggravated, and the damping function weakened, so that the transmission shaft vibration reached the body, and its vibration frequency changes with the speed changes. When the speed is 40 ~ 50km / h, the transmission shaft to the body vibration frequency close to the natural frequency of the steering wheel, causing the steering wheel resonance, and thus