Multi-objective optimization of surface texture for the slipper/swash plate interface in EHA pumps  

作　　者：Junhui ZHANG Yining SHEN Minyao GAN Qi SU Fei LYU Bing XU Yuan CHEN 

机构地区：[1]State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University,Hangzhou 310027,China [2]Shanghai Marine Equipment Research Institute,Shanghai 200031,China

出　　处：《Frontiers of Mechanical Engineering》2022年第4期229-242,共14页机械工程前沿（英文版）

基　　金：supported by the National Key R&D Program of China(Grant No.2018YFB2001101);the National Outstanding Youth Science Foundation of China(Grant No.51922093);the National Science Foundation for Young Scientists of China(Grant No.51905473);the Major Science and Technology Projects in Ningbo,China(Grant No.2019B10054);the Open Foundation of the State Key Laboratory of Mechanical Transmissions,China(Grant No.SKLMT-ZDKFKT-202001)。

摘　　要：Well-designed surface textures can improve the tribological properties and the efficiency of the electro-hydrostatic actuator(EHA)pump under high-speed and high-pressure conditions.This study proposes a multi-objective optimization model to obtain the arbitrarily surface textures design of the slipper/swash plate interface for improving the mechanical and volumetric efficiency of the EHA pump.The model is composed of the lubrication film model,the component dynamic model considering the spinning motion,and the multi-objective optimization model.In this way,the arbitrary-shaped surface texture with the best comprehensive effect in the EHA pump is achieved and its positive effects in the EHA pump prototype are verified.Experimental results show a reduction in wear and an improvement in mechanical and volumetric efficiency by 1.4%and 0.8%,respectively,with the textured swash plate compared with the untextured one.

关 键 词：electro-hydrostatic actuator axial piston pump slipper/swash plate interface multi-objective optimization surface texture 

分 类 号：TH322[机械工程—机械制造及自动化]