预压缩对橡胶球铰疲劳寿命的影响  

EFFECT OF PRE-COMPRESSION ON FATIGUE LIFE OF RUBBER BUSHING

作　　者：尹素仙[1,2] 肖世武[1] 黄友剑[2] 卜继玲[2] 罗文波[1,3] 

机构地区：[1]湘潭大学土木工程力学学院,湘潭411105 [2]株洲时代新材料科技股份有限公司,株洲412007 [3]湘潭大学流变力学研究所,湘潭411105

出　　处：《机械强度》2012年第3期384-388,共5页Journal of Mechanical Strength

基　　金：国家自然科学基金(10772156);教育部新世纪人才支持计划(NCET-08-0685);教育部科学技术重点项目(209085);湖南省教育厅重点项目(08A069)资助~~

摘　　要：利用实验与有限元分析相结合的方法,探讨径向预压缩量对橡胶球铰疲劳寿命的影响。通过橡胶材料的单轴拉伸、平面拉伸和等双轴拉伸性能测试,确定选用合适的橡胶本构模型,并采用Abaqus有限元软件对一种典型橡胶球铰进行应变分析,探讨预压缩量对最大对数主应变的影响,进而由材料的疲劳寿命与最大对数主应变的关系,分析得到预压缩量对橡胶球铰疲劳寿命的影响,提出预压缩量的优选方案。The effect of radial pre-compression on fatigue life of rubber bushing was investigated by tests and finite element analysis. A suitable hyperelastic constitutive model for rubber material used in this study was determined by fitting the model to simple tension,planar tension and equal biaxial tension tests, and was then used to analyze the strain distribution of a typical rubber bushing in Abaqus. The influence of radial pre-compression on the maximum principal logarithmic strain of the rubber bushing was discussed. A relationship between the pre-compression and the fatigue life of the rubber bushing was determined based on the material＇s fatigue performance,and finally an optimum pre-compression was proposed.

关 键 词：橡胶球铰 主应变 疲劳寿命 预压缩量 

分 类 号：O346.2[理学—固体力学] TG115.5[理学—力学]