摘要
针对某前置前驱乘用车发动机悬置系统所产生的怠速抖动问题,基于传递路径分析(transfer path analysis,TPA)模型的悬置系统优化设计结果,对悬置系统进行样件试制.通过弹性体试验机试验得出了样件静刚度曲线.选定怠速开空调和怠速关空调2种测试工况进行了试验,通过布置三向加速度传感器测取悬置主动端、被动端和目标响应点的振动信号,验证悬置的隔振效果和整车的振动性能,并提出了完善的主观评价测试内容以及评价方法.结果表明:新开发的悬置系统的隔振率以及车内各关注点的振动响应量满足优化前所定的目标;新开发的悬置系统对整车所带来的乘坐品质和驾驶特性较好.
To solve the problem of idle jitter caused by the engine mount system of a front drive passenger car,according to the optimal design results of the mount system,the sample of the mount system was remanufactured based on the transfer path analysis(TPA)model.The static stiffness curve of the sample was obtained on elastomer testing machine.Two test conditions of turning on the air conditioner at idle speed(Idle Ac On)and turning off the air conditioner at idle speed(Idle Ac Off)were selected for the test.The vibration signals of active end,passive end and target response point of the mount were measured by arranging the three-way acceleration sensors to verify the vibration isolation effect of mount and the vibration performance of whole vehicle.The perfectly subjective evaluation test content and evaluation method were also proposed.The results show that the vibration isolation rate of the newly developed mount system and the vibration response of each concerned point in the vehicle can meet the objectives set before optimization.By the newly developed mount system,the good ride quality and driving characteristics to the whole vehicle can be obtained.
作者
潘公宇
王功强
陈清爽
朱瑞
李东
PAN Gongyu;WANG Gongqiang;CHEN Qingshuang;ZHU Rui;LI Dong(Jiangxi Province Key Laboratory of Vehicle Noise and Vibration,Jiangling Motors Co.,Ltd.,Nanchang,Jiangxi 330013,China;School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China)
出处
《江苏大学学报（自然科学版）》
CAS
北大核心
2022年第2期125-130,共6页
Journal of Jiangsu University：Natural Science Edition
基金
国家自然科学基金资助项目(51375212)
江西省汽车噪声与振动重点实验室开放基金资助项目(JXNVHKB-KFKT-201802)。
关键词
发动机悬置系统
怠速抖动
传递路径分析
隔振率
主观评价
engine mount system
idle jitter
transfer path analysis
vibration isolation rate
subjective evaluation
