Design and analysis of suspension cushion of light truck cab locking mechanism

TANG Zhigang, CUI Guogang, FAN Zhimin

（College of Mechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China）

Abstract: Aiming at structural design problems of suspension cushion on locking mechanism which used in light truck cab, the finite element analysis which applied to design of rub suspension cushion was investigated. After the analysis of carrying out theoretical designs and experimental measurements, the relationship of result between finite element analysis and experimental measurements was established. A method was presented to test the center of mass parameters with static balance method. The design method of suspension cushion for locking mechanism used in light truck cab were evaluated on the center of mass parameters test. Finite element analysis, experimental measurements, static stiffness were tested in the laboratory, the difference between finite element analysis and experimental measurements was constrasted. The results indicate that the difference is less than 10% between static stiffness of suspension cushion and theoretical calculation which used the finite element analysis, which is within acceptable range theoretically, and show that the finite element analysis can be used as a tool to design suspension cushion on locking mechanism which used in light truck cab.

Key words: light truck cab; locking mechanism; suspension cushion; finite element analysis