摘要
当减振器活塞杆顶端与塔顶紧固时,由于扭力扳手与活塞杆顶端的内六方作用导致内六方发生畸变,致使减振器失效,存在安全隐患。基于TRIZ理论进行实际问题的分析和转化,根据矛盾矩阵推导出适合的创新方法,并得到具体问题的解决方案。分别利用ADINA软件建立了某车型减振器活塞杆顶部内六方、内七方与扳手作用的动态隐式有限元高精度节点模型,并在ADINA软件后处理中求解分析,分别得到了两者旋后活塞杆的位移云图和应力云图。仿真结果表明:在同等力矩下,内七方应力更加分散,应力值和变形量均小于内六立。验证了TRIZ理论设计方案的正确性,说明利用TRIZ理论能够对减振器部件的优化设计提供新方法。
When the top of the piston rod and the mounts were screwed, the inner hexagon was distorted due to the interaction between the torque wrench and the top of the piston rod, resulting in the failure of the shock absorber, and there were potential safety hazards. Actual problems were analyzed and transformed based on TRIZ theory, the appropriate innovation methods were derived according to the contradiction matrix, and the solutions to specific problems were obtained. ADINA software was used to establish the accurate piston god inner hexagon and inner heptagon and the wrench dynamic implicit finite element mesh models. The analysis was solved in ADINA post-processing, and the displacement cloud diagrams and stress cloud diagrams of the piston rod were obtained respectively. The simulation results show that under the same value of the torque, the inner heptagon is more dispersed, and the stress and deformation were smaller than the inner hexagonal. The correctness of the design scheme of TRIZ theory is verified, which shows that the TRIZ theory can provide a new method for the optimal design of shock absorber components.
作者
张娜
杨坤
于振环
ZHANG Na;YANG Kun;YU Zhenhuan(School of Mechanical Engineering,Changchun Automobile Industry Institute,Changchun Jilin 130011,China;Laboratory Centre,FAW-Tokico Shock Absorber Co.,Ltd.,Changchun Jilin 130013,China;School of Automotive Engineering,Changchun Automobile Industry Institute,Changchun Jilin 130011,China)
出处
《汽车零部件》
2022年第9期1-5,共5页
Automobile Parts
基金
国家自然科学基金项目(61790562)
吉林省教育厅科学研究项目(JJKH20221345KJ)。
关键词
减振器
TRIZ理论
隐式动态
有限元仿真
shock absorber
TRIZ theory
dynamic implicit
finite element simulation
