轿车悬架耐久性试验载荷谱的优化研究  

A Research on the Optimization of Load Spectrum for Durability Test of a Car Suspension

作　　者：成永刚[1] 郑松林[1,2] 冯金芝[1] 井清[1] 张瑾[1] 

机构地区：[1]上海理工大学机械工程学院汽车工程研究所,上海200093 [2]同济大学汽车学院,上海201804

出　　处：《汽车工程》2009年第5期467-470,共4页Automotive Engineering

基　　金：上海市教育委员会重点学科建设项目(J50503);国家自然科学基金(50875173);上海市科委科研基金(08DZ1150300);上海市教育委员会科研创新重点项目(09ZZ157);上海市教育委员会科研创新一般项目(09YZ226)资助

摘　　要：文中旨在研究评价轿车悬架耐久性试验载荷谱的优化方法。根据材料的低载强化特性,提出了一种综合考虑强化和损伤效果的无效载荷评价原则;接着对比分析了采用两种不同的无效载荷删除准则对某轿车悬架耐久性试验载荷谱进行处理的结果,包括强化与损伤载荷的保留比例和载荷谱的长度对原载荷谱总体特征的影响;最后据此提出载荷谱优化处理应遵循的原则。An optimization method of the test load spectra for evaluating durability of car suspension is studied in this paper. Based on the feature of low-load strengthening, an invalid load taking both damage and strengthening effects into consideration;Then the results of evaluation principle is proposed, processing the durability test load spectra for a car suspension as well as the effects of the retaining proportion of damaging and strengthening loads and the duration of load spectrum on the overall features of original load spectrum are comparatively analyzed; Finally some principles to be followed in optimizing load spectrum are given based on above analyses.

关 键 词：悬架 耐久性试验 载荷谱 优化 低载强化 

分 类 号：U467.3[机械工程—车辆工程]