Design of Optimization of Diaphragm Chamber Based on Finite Element Method

Diaphragm Chamber is a critical component in fluid end of large scale diaphragm pump. Static strength failure and fatigue failure of diaphragm chamber are caused by high pressure of slurry flowing which is transported by diaphragm pump. It is necessary to analyze the inferences of different boundary shapes of diaphragm chamber on its static strength. In this paper, diaphragm chamber was simulated by finite element analysis program ADINA. Inferences of different boundary dimensions of diaphragm chamber on its strength are studied. Stress distribution graphs of diaphragm chamber can be obtained from analysis results. Maximum stresses of diaphragm chamber affected by different boundary shapes of diaphragm chamber are summarized. The analysis results in the paper provide some theoretical guidance for structure optimum of diaphragm chamber and manufacturing cost reduction.