重型汽车前轴多工况结构轻量化设计研究  

Research on Lightweight Design of Front Axle for Heavy Duty Truck at Multi-operating Conditions

作　　者：周智 秦训鹏[1,2] 詹军 ZhouZhi;Qin Xunpeng;Zhan Jun

机构地区：[1]武汉理工大学汽车工程学院,430070 [2]现代汽车零部件技术湖北省重点实验室 [3]湖北三环智能科技有限公司

出　　处：《工程机械》2020年第5期44-51,I0014,共9页Construction Machinery and Equipment

基　　金：湖北省技术创新专项重大项目(2017AAA008)。

摘　　要：前轴是汽车簧下的主要承重件之一,在汽车的底盘系统中占有很大的一部分质量。针对重型汽车前轴的形状和行驶工况复杂带来的前轴结构设计困难等问题,提出一种多工况折衷规划法对前轴进行结构轻量化设计,并对设计前后的前轴进行静力学对比分析,最后预测轻量化前轴的疲劳寿命。结果表明,所设计的轻量化前轴静强度和疲劳寿命均满足要求。Front axle in a truck under the spring set is one of the main load bearing parts that is share a large part of mass.In view of the front axle’s shape and complex travel conditions which brings about hardship in design,so that there has to provide a compromise planning among multi operating conditions so as to formulate a lighter mass design for the front axle beforehand a comparison and analysis of the axle’s static mechanics before and after the design,and finally expecting fatigue life of the lightened front axle,results show that static strength and fatigue life of such an axle can meet the requirements.

关 键 词：轻量化 汽车前轴 多工况 折衷规划法 疲劳寿命 

分 类 号：U463.1[机械工程—车辆工程]