轿车加速车身纵向振动的研究  

Analysis of Vehicle Surge

作　　者：张威[1] 隗海林[1] 李承德[2] 

机构地区：[1]吉林大学 [2]长春汽车研究所

出　　处：《汽车工程》2002年第1期10-14,共5页Automotive Engineering

摘　　要：本文对样车进行了系统分析和试验诊断,建立了整车加速纵向振动模型,并加以仿真。研究结果表明样车加速时车身的纵向振动低频成分(3.9Hz)由动力传动系扭振所引起,高频成分(7.9Hz)由发动机第五悬置与车体限位框碰击所产生。在考虑生产的可行性和仿真验证的基础上,提出了改进方案。In this paper,the analysis and experiments on a vehicle system are carried out and a vibration model is built to simulate vehicle surge. It is clarified by experiments and simulation model, that the vehicle surge is caused by both the torsional vibration of power train (3.9Hz) and the collision of the fifth pad of engine mount with the limit stop on car body (7.8Hz). Accordingly,some feasible solutions to vehicle surge are given.

关 键 词：轿车 加速 纵向振动模型 车身 仿真 

分 类 号：U467.1[机械工程—车辆工程]