基于惯性参数的动力总成悬置系统解耦分析.PDFVIP

第37 卷 第6 期 噪 声 与 振 动 控 制 Vol 37 No.6 2017 年12月 NOISE AND VIBRATION CONTROL Dec. 2017 文章编号：1006-1355(2017)06-0094-04 基于惯性参数的动力总成悬置系统解耦分析 周宇杰，雷 刚，贺艳辉，张骑虎 （重庆理工大学 汽车零部件制造及检测技术教育部重点实验室，重庆 400054 ） 摘 要：基于传统的动力总成悬置系统6 自由度模型，可得到与6 自由度相关的解耦率。而通过商业软件Adams 建 立动力总成悬置系统模型并利用vibration 插件进行计算时，平动方向上的解耦率与传统6 自由度模型相同，而转动方 向上的三个分量被分解为6 个与惯性参数相关的分量。基于Adams 模态能量表达，用Matlab 软件编写动力总成悬置 系统的解耦率计算程序，利用多目标优化方法对悬置系统进行优化设计。结果表明，对悬置刚度进行优化能有效提高 解耦率。 关键词：振动与波；振动解耦；多目标优化；悬置系统 + 中图分类号：U260.331 .5 文献标识码：A DOI 编码：10.3969/j.issn. 1006-1355.2017.06.019 Decoupling Analysis of Powertrain Mount Systems Based on Inertial Parameters ZHOU Yu-jie , LEI Gang , HE Yan-hui , ZHANG Qi-hu ( Key Laboratory of Manufacture and Test Techniques for Automobile Parts, Chongqing University of Technology, Chongqing 400054, China ） Abstract : The decoupling rate associated with 6 DOFs is obtained based on the traditional 6-DOF model of powertrain mounting systems. The model of the powertrain suspension system is built by means of commercial software Adams, and the plug-in vibration code is used for calculation. In the calculation, the decoupling rate in the translation direction is the same as that of the traditional 6-DOF model, but the three components in the rotational direction is divided into 6 components which are related to the inertial parameters. Based on the expression of Adams modal energy, the Matlab software is used to write the program for decoupling rate computation of the powertrain mounting system. Finally, the optimization design of the mount system is carried