某汽车怠速抖动问题分析与改进  

Analysis and optimization on idling vibration of same car

作　　者：黄秋生 Huang Qiusheng(Anhui Jianghuai Automobile Group Co.,Ltd.,Anhui Hefei 230601)

机构地区：[1]安徽江淮汽车集团股份有限公司,安徽合肥230601

出　　处：《汽车实用技术》2018年第18期95-97,共3页Automobile Applied Technology

摘　　要：文章首先论述了汽车怠速振动的原理,汽车动力总成的振动模型,模态频率和解耦率的试验方法。继而对问题车辆的动力总成及悬置系统的缺陷进行计算分析。通过模拟计算,确定优化后的方案满足匹配要求。最终通过试验测试结果确定优化方案可行。This paper firstly introduce the principle of automobile idling vibration, the vibration model of powertrain, and how to calculating the mode frequency and the decoupling rate of the six freedom degrees. Then, we analyze the indication of the powertrain and suspension system by calculating the mode frequency and the decoupling rate of the six freedom degrees. The optimization scheme which we have accepted by simulation has been provided to be effective after testing.

关 键 词：NVH 模态频率 解耦率 怠速振动 

分 类 号：U471.2[机械工程—车辆工程]