橡胶组合支撑力学特性的理论和试验分析  

Theoretical and Experimental Analyses of Rubber Combined Supports

作　　者：兰志文[1] 胡学明[2] 胡文辉[2] 黄模佳[1] 

机构地区：[1]南昌大学工程力学研究所,江西南昌330031 [2]江铃控股有限公司开发中心,江西南昌330200

出　　处：《南昌大学学报（工科版）》2010年第1期45-48,共4页Journal of Nanchang University(Engineering & Technology)

基　　金：国家自然科学基金资助项目(10972098;10562004;10662004);江西省主要学科学术和技术带头人培养计划项目;高等学校博士学科点专项科研基金(20070403003);江西省自然科学基金资助项目(2008GZW0005)

摘　　要：SUV汽车车身的重量、附载及其动荷载通过橡胶组合支撑传到车架上,利用橡胶组合支撑的变形协调条件,橡胶组合支撑变形与载荷间的关系式可以给出。分析结果表明:橡胶组合支撑变形与载荷的关系近似为分段直线关系,直线的斜率为橡胶组合支撑的刚度,支撑小变形时的刚度大于大变形时的支撑刚度,橡胶组合支撑这种特性能够可提高SUV汽车行驶时的舒适性。通过试验测量了橡胶组合支撑在载荷作用下的变形,试验结果与理论结果一致,该结果可用于指导橡胶组合支撑的设计。SUV car body weight,loading,and their dynamic loads act on the car frame through rubber combined supports.The relationships between deformations and loads on rubber combined supports are derived by using the deformation consistent conditions of rubber combined supports.The relationships between deformations and loads on rubber combined supports are approximately sub-linear.The elastic stiffness of rubber combined supports for small deformation is greater than that for large deformation.The sub-linear slopes are the elastic stiffness of rubber combined supports.This feature of rubber combined supports can improve the driving comfort of the SUV vehicles.The elastic stiffness of the rubber combined supports are measured by tension and compression tests.The theoretical results are consistent with the experimental results.The results can be used to guide the design of rubber combined supports.

关 键 词：橡胶垫 橡胶组合支撑 汽车 弹性刚度 

分 类 号：O343[理学—固体力学]