基于能量解耦的动力总成悬置系统优化研究  

Study on optimization of power-train mounting system based on energy decoupling

作　　者：欧健[1] 庞承强[1] 张勇[1] 

机构地区：[1]重庆理工大学重庆汽车学院,重庆400054

出　　处：《机械设计与制造》2011年第12期152-154,共3页Machinery Design & Manufacture

基　　金：重庆市科委重大项目(CSTC;2007AA6009);重庆市科委科技攻关项目(2007AB3059)

摘　　要：测量了动力总成悬置系统相关参数。运用多体动力学软件ADAMS建立了该悬置系统仿真模型,并对怠速工况进行仿真,得到各悬置加速度响应曲线;搭建了悬置系统试验平台,测试了各悬置元件怠速工况下振动响应,并将仿真结果与试验结果作比较,验证了所建模型的正确性。利用ADAMS/Vibra-tion模块,根据动力总成悬置系统能量解耦理论,以悬置系统各悬置元件刚度为设计变量,以固有频率合理匹配为约束,选取动力总成在激励作用方向能量解耦度的提高为优化目标。结果表明,仅以刚度为设计变量在一定程度可以实现解耦度的提高,要达到完全解耦,还需考虑其它影响因素。Related parameters of power-train mounting system are measured by experiment.First a simulation model of mounting system is built through multi-body dynamics software ADAMS to simulate the idle working condition and acceleration response curve is obtained.Then a test platform for mounting system is built to test vibytotion response of mounting elements under idle condition,which results shall be compared with the simulation to rectify the correctness of the model built.Based on energy decoupling theory of power-train mounting system, with stiffness of mounting components as design variable,reasonable match- ing of natural frequency as constrains ,the improving energy decoupling degree in the direction of acting force is chosen as objective functions by utilizing ADAMS/Vibration module.The result shows that choosing mounting stiffness as the only design variables can improve decoupling to some extent,to achieve complete decoupling, more influencing factors must be taken into account.

关 键 词：动力总成 悬置系统 能量解耦 匹配 

分 类 号：TH16[机械工程—机械制造及自动化] U461[机械工程—车辆工程]