基于模态分析的汽车转向盘怠速抖动优化

针对某轿车怠速开空调转向盘抖动的问题,对转向盘和排气系统模态进行分析,发现该车转向盘和排气系统在约束条件下的模态参数与发动机的2阶点火频率相一致.调整了其转向盘和排气系统的模态,并针对优化后转向盘进行了振动试验.结果表明,转向盘X方向的振动由0.90 m/s2降为0.31 m/s2,Y方向的振动由1.05 m/s2降为...

Optimization for the Steering Wheel Shake during Ilding Based on Modal Analysis

In this paper,to solve the problem of steering wheel shaking when the car is idling and the air conditioner is on,analysis is made to the modal of the steering wheel and exhaust system.It is observed that under restraint conditions,modal parameter of the steering wheel and exhaust system are identical with the engine's 2-order ignition frequency.The modal of steering wheel and exhaust system is adjusted,and vibration test is made to the optimized steering wheel.The results show that vibration of the steerin...