基于MSC Nastran的汽车ESP安装支架优化与设计  

Optimization and design of automotive ESP installation bracket based on MSC Nastran

作　　者：刘丽丽[1] 叶远林[1] 李义辉[1] 蒋成武[1] 吴泽勋[1] 

机构地区：[1]奇瑞汽车股份有限公司汽车工程技术研发总院,安徽芜湖241009

出　　处：《计算机辅助工程》2017年第3期25-29,共5页Computer Aided Engineering

摘　　要：为提升汽车ESP安装支架的动力学性能,利用MSC Nastran对其进行强迫运动分析.分析支架系统的共振频率和加速度的最大增益特性,并根据分析结果对原始模型进行优化设计,提升ESP支架性能,从而保证车辆在各种状况下行驶的稳定性及安全性.使用仿真和台架试验的方法验证优化后的支架性能,二者结果非常接近,表明该仿真方法可为ESP支架的优化设计提供参考.To improve the dynamics performance of automotive ESP installation bracket,the enforced motion analysis is performed on it using MSC Nastran. The resonance frequency and maximum gain characteristics of acceleration are analyzed for bracket system. According to the results,the original model is optimized to improve the performance of ESP bracket. Thus the automotive stability and safety under various conditions can be ensured. The performance of the optimized bracket is verified by simulation and bench test and the results are in good agreement,which shows that the simulation method can provide reference for ESP bracket optimization and design.

关 键 词：汽车 ESP 支架 强迫运动 共振频率 最大增益 激励 

分 类 号：U463[机械工程—车辆工程]