隔膜泵, 隔膜, 流固耦合, 数值模拟, 隐式动力学

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. 

diaphragm pump, diaphragm, fluid and solid interaction, numerical simulation, implicit dynamics