摘要
前置后驱动力总成系统由于受布置结构限制,常不能达到很高的解耦率。为了在项目前期能够对设计的悬置系统做一个较全面的评估,介绍一种利用计算机模拟进行正向开发的方法。基于MATLAB平台建立13自由度动力总成-车身系统动力学模型,通过计算悬置支反力和车身振动响应对悬置系统进行优化,最终得到了较好的设计参数值,从而证明该正向开发方法相对于传统仅基于悬置解耦率的方法更先进、有效。
Engine mount system of front-engine rear-drive powertrain can＇t obtain high decoupling rate normally,because of the structural constraint. For accurately assessing the mount system design at earlier stage of project,a forward development method based on computer simulation was introduced. A thirteen DOFs powertrain-body dynamic model was established based on MATLAB software. Through calculating mount reactive force and vibration response of body,the mount system was optimized and a better design was obtained. The results prove that this forward development method precede the conventional evaluation method in which only decoupling rate is used.
出处
《汽车零部件》
2016年第5期42-46,共5页
Automobile Parts
