传动轴对振动噪声的影响

The Influence to Vibration and Noise of the Shaft

在分析了传动轴结构及要求的基础上,针对某后驱货车在105km/h以上出现的车内噪声问题进行了测试、分析及整改。结果表明:传动轴二阶激励是引起车内噪声的主要原因,减小传动轴夹角可有效降低或消除车内噪声。

On the basis of the structure and requirements of shaft analized,the problem of interior noise is tested,analizedand improved which is caused by the vibration of truck’s shaft more than105km/h.The results show that the second orderincentive is the result of the problem of interior noise,and the reduced angle of the shaft can effectively reduce or eliminatethe interior noise.