大型隔膜泵橡胶隔膜的有限元分析

摘要

针对隔膜腔的隔膜工作过程,建立简化的二维轴对称结构隔膜有限元模型,对其进行隐式动力学分析,同时建立三维对称结构的隔膜腔及隔膜整体有限元模型,对其进行流固耦合分析,最后针对两种不同的方法和结果展开对比,以此期望得出模拟隔膜运动中应力和位移变化的合理数值模拟方法,以指导隔膜设计。%In allusion to the work process for a diaphragm of diaphragm chamber,a simplified two-dimensional axisymmetric finite element model of membrane structure was established,and laid bare the implicit dynamics analysis,while a three-dimensional symmetrical structure whole finite element model of the diaphragm chamber and diaphragm was established and laid bare the analysis for fluid-solid coupling.At last,for two different methods and results began comparison in order to elicit a reasonable numerical simulation method which will be used to simulate the changes on stress and displacement of diaphragm movement,so as to guide reasonable diaphragm design.