基于Workbench的液压泵泵体的热力耦合分析  

Thermodynamic Coupling Analysis of Hydraulic Pump Body Based on Workbench

作　　者：吴东 赵陈磊 戴蓉蓉 Wu Dong;Zhao Chenlei;Dai Rongrong(Geely University,Chengdu 641423,China)

机构地区：[1]吉利学院,成都641423

出　　处：《机电工程技术》2024年第8期229-232,共4页Mechanical & Electrical Engineering Technology

摘　　要：齿轮泵在实际工况中易受到热力耦合作用,从而产生疲劳破坏,影响泵的工作效率和寿命,因此研究泵体的热变形影响规律,分析热疲劳破坏的原因,对优化泵体结构提高使用性能至关重要。基于此情况,以齿轮泵泵体作为研究对象,借助ANSYS Workbench软件,在热力耦合的情况下,对3种不同散热条件下的泵体进行稳态热、结构力学和疲劳寿命分析。通过对比仿真分析结果可知:泵体在额定工况条件下,采用空气自然对流换热散热效果最差,热变形和热应力最大,寿命最短;采用油冷对流散热效果比空冷好,热变形与热应力较小,寿命比空冷长;而与前两种散热相比,采用水进行自然对流换热散热效果最佳,产生的热变形和热应力最小,寿命最长。这为改善齿轮泵的散热环境和结构优化提供一定的借鉴意义。Gear pump is vulnerable to thermal coupling in the actual working conditions,resulting in fatigue failure,affecting the pump efficiency and life,so it is very important to study the influence law of thermal deformation of the pump body and analyze the causes of thermal fatigue failure to optimize the pump structure and improve the performance.Based on this situation,the gear pump body is taken as the research object,with the help of ANSYS Workbench software,the steady-state thermal,structural mechanics and fatigue life of the pump body under three different heat dissipation conditions are analyzed in the case of thermodynamic coupling.The simulation results show that under the rated working conditions,the natural convection air heat transfer has the worst heat dissipation effect,the largest thermal deformation and thermal stress,and the shortest life.Oil cooling convection heat dissipation effect is better than air cooling,thermal deformation and thermal stress are smaller,and life is longer than air cooling.Compared with the first two kinds of heat dissipation,the use of water for natural convection heat transfer has the best heat dissipation effect,the thermal deformation and thermal stress are the least,and the life is the longest.This provides some reference for improving the heat dissipation environment and structural optimization of gear pump.

关 键 词：泵体 热力耦合 ANSYS Workbench 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]