基于ANSYS的软管隔膜泵活塞总成优化设计

Optimization of the piston assembly of hose-diaphragm pump based on ANSYS

为确保活塞能够正常、稳定运行,对其进行了有限元分析,并对重要尺寸进行参数优化研究。首先采用ANSYS Workbench中的DM模块进行参数化建模,然后对其进行静力学分析与模态分析,得到最大变形位置与应力集中点。以此为依据,采用响应面法对其重要尺寸进行了敏感性分析与优化设计。结果表明:活塞总成的总体变形量降低了6.4%,最大等效应力也有所降低,有效提高了活塞总成的强度并降低了其形变量。

In order to ensure the normal and stable operation of the piston,the finite element analysis is carried out,and the parameter optimization of important dimensions is studied.First of all,the design module in ANSYS Workbench is used for parametric modeling.Then the static analysis and modal analysis are performed,and the maximum deformation position and stress concentration point are obtained.Based on this,the sensitivity analysis and optimization design of its important dimensions are carried out by the response surface method.The results show that the total deformation of pistons is reduced by 6.4%,and the maximum equivalent stress is reduced,which effectively improves the strength of pistons and reduces its shape deformation.