HG高压水泵的有限元分析及结构改进

Finite Element Analysis and Structural Improvement of HG High-Pressure Pump

对某公司的新产品HG高压水泵的最大受力情况进行有限元静力分析,得到其关键部件传动轴的应力分布及最大应力。分析结果表明:传动轴所受应力较大,安全系数较低,不满足工作及设计要求。根据有限元分析结果提出结构改进方案,并对改进后的HG高压水泵进行静力分析。分析结果表明:改进后的传动轴最大应力较改进前降低了33.03%,安全系数显著提高,使传动轴的强度得到加强,提高了HG高压水泵的可靠性和稳定性。

This article carried out finite element static analysis on the maximum stress condition of HG high-pressure pump（HPP）,and the stress distribution and the maximum stress of which the key component,transmission shaft,was obtained.The result indicated that the stress of the transmission shaft was relatively larger,and the safety factor was low,which could hardly meet the operating and design requirement.According to the FEA result,the paper proposed an improvement strategy,and put forward static analysis on the improved HG HPP.The result shows that the maximum stress of the improved transmission shaft has been reduced33.03% and the safety factor has been considerably increased,which increases the strength of the shaft and increased the reliability and stability of HG HPP.