金属橡胶的悬臂梁杆系模型及有限元分析  

The cantilever beams model of metal-rubber and it’s analysis with FEM

作　　者：李明森[1] 张文群[1] 吴新跃[1] 

机构地区：[1]海军工程大学船舶与动力学院,湖北武汉430033

出　　处：《机械》2008年第10期15-18,共4页Machinery

基　　金：科研基金项目(501010302)

摘　　要：金属橡胶是由不锈钢金属细丝经特定的成型工艺制作而成,具有优异的非线性阻尼性能。也正由于金属橡胶存在非常强的非线性特性,使得对其性能的研究存在一定的难度。依据金属橡胶的性能特点,建立了金属橡胶成形压力方向的悬臂梁杆系接触作用模型,利用有限元分析软件,对试件成形方向的循环压缩性能进行了仿真分析,得到与实验结果基本一致、能有效描述试件干摩擦阻尼性能的迟滞回线,考察了相对密度的改变对结果的影响,为加工前期金属橡胶构件阻尼性能的预估和成型工艺中相对密度的确定提供了科学的依据。Metal-rubber（MR）, made of stainless steel wire by special molding art, has good nonlinear damping characteristics. And it＇s difficultly to study the characteristics of MR for the characteristics are nonlinear. A cantilever beams contact function model of MR is constructed in this paper. The finite element analysis software ANSYS11.0 is used to simulate the MR＇s compressive loop behavior in forming pressure direction. The simulation results are hysteresis loops, which match the experimental results proximately. The influence of the relative density of MR on damping characteristics is simulated and analyzed. The method provides an important tool for estimating the damping characteristics of MR, and it can help to select an appropriate relative density of MR in molding art.

关 键 词：金属橡胶 阻尼 悬臂梁模型 有限元法 

分 类 号：TB331[一般工业技术—材料科学与工程]