摘要
建立了汽车前门及其检具的有限元模型,应用有限元分析软件MSC.Patran/Nastran对某轿车前门及其检具主体进行了重力变形分析,以及检具主体的热变形分析,找出自重最大变形测点和分析出最大热变形发生的温度;结合底板优化、增加支座数量以及设置伸缩缝等方法对检具结构进行优化,以降低检具在使用过程中的重力相对变形及热变形,有效提高了检具的精度。
The finite element models of the car front door and its fixture were established. The gravity deformation and thermal deformation for front door and fixture were analyzed by CAE software MSC. Patran / Nastran. The maximums of gravity deformation measuring point and the thermal deformation were found out. The structure of the fixture was optimized by using floor optimization,increasing the number of supports,as well as setting expansion to decrease gravity relative deformation and thermal deformation during gauge working,which effectively improved the precision of fixture.
出处
《工具技术》
北大核心
2016年第3期95-97,共3页
Tool Engineering
基金
吉林省教育厅"十二五"科学技术研究项目(2015115)
关键词
前门
检具精度
重力变形
热变形
结构优化
front door
precision of fixture
gravity deformation
thermal deformation
optimizing structure
