基于ANSYS的水表塑料壳体应力分析及优化设计

Stress Analysis and Optimal Design on Plastic Shell of Water Meter Based on ANSYS

应用ANSYS Workbench软件对水表塑料壳体的应力进行了模拟分析。对基础壳体进行分析,确定其应力情况,不断改进壳体中各个细节;挑选形变、应力较大的位置进行结构优化仿真计算,分析其应力变化,得出最佳修改方案,进而对实际壳体进行改进。耐压试验的结果表明,仿真值与实际试验值基本吻合,且整体变化趋势保持一致,强度完全优于基础壳体。数值模拟作为结构设计及优化的一种手段是切实可行的,能保证塑壳件在更加恶劣条件下依旧能够正常工作。

ANSYS Workbench is used to analyze the stress of the plastic shell of the water meter.Through the analysis of the basic shell,the stress situation is determined,the details of the shell are continuously improved.The position with large deformation and stress is selected for structural optimization and simulation calculation.Its stress changes is analyzed to get the best modification plan,and then the actual shell is improved.After the pressure test,the simulation value is basically consistent with the actual test value,the overall change trend is consistent,and the strength is completely better than base shell.It shows that numerical simulation is feasible as a means of structural design and optimization,which ensures that the plastic shell parts can still work normally under more severe conditions.