摘要
变速箱吊架悬置系统由三点式改装为四点式的优化设计,解决了空间布置和怠速抖动等问题。优选软垫安装角度,对上、下支架实施拓扑优化。通过有限元方法对吊架模态、应力、变形、疲劳性能开展分析,通过试验场50 000 km耐久性试验对成型产品进行评测。吊架在各种工况下的最大等效应力均小于材料许用应力355 MPa;吊架整体变形远小于1 mm;应力集中点由3个降为2个;隔振效率由64.5%提升至83.7%。成型产品受到了改装厂家和用户的认可,总体思路有潜力应用于其他汽车零部件的结构设计。
In order to solve the problems such as size arrangement and idling, the optimization strategy of substituting the 3-point type into the 4-point type is proposed for the suspension hanger system of gearboxes. The installation angle of the cushion is optimized; the topology optimization is carried out for the upper and lower supports. The modal, stress, deformation and fatigue performance of hangers are analyzed by finite element method, and the molded products are evaluated through the test field 50 000 km durability test. The maximum equivalent stresses of hangers under various working conditions are all less than 355 MPa of material allowable stress. The overall deformation of hangers is far less than 1 mm. The amount of stress concentration point is reduced from 3 to 2. The vibration isolation efficiency is increased from 64.5% to 83.7%. The molded products have been widely accepted by the modification manufacturers and users, and the overall idea has the potential to be used in the structure design of other vehicle parts.
出处
《工业技术创新》
2018年第1期44-46,共3页
Industrial Technology Innovation
关键词
变速箱吊架
结构设计
疲劳分析
应力与形变
Suspension Hanger
Structural Design
Fatigue Analysis
Stress and Deformation
作者简介
陈星晨（1989-），男，安徽淮北人，研究生，工程师。主要从事汽车底盘仿真设计。E-mail：shasd202@163.com;吴迪（1988-），通信作者，男，湖北十堰人，本科，工程师。主要从事汽车底盘仿真设计。E-mail：wd101010@163．com;付麒（1989-），男，湖北襄阳人，本科，工程师。主要从事汽车底盘仿真设计。
