空气弹簧刚度的有限元分析方法

Analysis of air-spring′s stiffness by finite element method

在简要分析确定空气弹簧刚度传统方法的基础上 ,从有限元的角度 ,提出了分析空气弹簧刚度的新思路 ,并初步解决了用有限元分析空气弹簧刚度需要解决的几何非线性、气压载荷变化等问题 .而后 ,以回转型空气弹簧为例 ,分析了其垂向刚度特性 .分析结果表明 ,用有限元分析空气弹簧刚度是可行的 .最后 ,根据空气弹簧的实际情况 。

On the basis of briefly analyzing the traditional methods of determining air spring's stiffness, finite element method, as a new method, is presented. Nonlinear characteristic of geometry, pressure load's variation and other problems are settled basically in the article. As an example, the vertical stiffness characteristic of circle round type air spring is analyzed. The result suggests that air spring's stiffness can be analyzed by finite element method. Finally, according to actual air spring, some measures are introduced to improve the analytical results.