基于低载强化的轮边减速系统耐久性试验研究  

Durability Test of Hub Reducer System Based on Low Load Strengthening

作　　者：刘新田[1,2] 郑松林[1,3] 陈铁[1] 冯金芝[1,3] 

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]上海工程技术大学汽车工程学院,上海201620 [3]机械工业汽车机械零部件强度与可靠性评价重点实验室,上海200093

出　　处：《上海理工大学学报》2016年第1期31-37,共7页Journal of University of Shanghai For Science and Technology

基　　金：国家高技术研究发展计划(863计划)重大项目(2012AA110701);国家自然科学基金资助项目(51375313;51305269);上海市科委基础研究重点项目(13JC1408500);上海汽车工业科技发展基金资助项目(1104);上海市教委重点学科建设资助项目(J50503)

摘　　要：基于上海市标准道路循环工况,外推轮边减速系统关键部件载荷谱.根据材料低载强化特性确定减速系统磨合试验规范.基于Miner线性累积损伤理论,制定了电驱动系统耐久性试验规范,预估了减速系统耐久性里程.实施了耐久性台架试验,试验结果表明:样机满足设计的耐久性里程要求,齿轮的弯曲疲劳强度具有足够的可靠性储备,具有一定的轻量化空间.在保证可靠性、耐久性的前提下,该方法为汽车关键零部件的轻量化提供参考.Based on the working conditions of Shanghai standard road driving cycle,the load spectrum for the key components of wheel deceleration system was extrapolated.According to the strengthening effect of low amplitude loads,the running-in test specification for the reducer system was issued.A durability test specification was developed based on the Miner rule and the deceleration system durability mileage was estimated.The bench test for durability shows that the prototype design satisfies the durability mileage requirement,and the bending fatigue strength of the gear is of sufficient reliability,which gives the possibility for further light weight design.Under the prerequisite of assuring the reliability and durability requirements,the method can be applied in the light weight design of other key automotive components.

关 键 词：轮边减速系统 耐久性试验 载荷谱 低载强化 

分 类 号：U467.3[机械工程—车辆工程]