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Research on oil film characteristics of piston pair in swash plate axial piston pump

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【Author】 Wang Xiaojing;Sun Yuwei;Shen Zhiqi;School of Mechanical and Power Engineering,Harbin University of Science and Technology;

【通讯作者】王晓晶;

【机构】 School of Mechanical and Power Engineering,Harbin University of Science and Technology；

【摘要】 The research on the oil film characteristic of piston pair is beneficial to the design and optimization of friction pair, which can improve the performance of piston pump. The fluid pressure of piston cavity is accurately obtained by AMEsim simulation. Oil film thickness field model of piston pair under the slanting state of piston is established, and the distribution law is numerically analyzed under different speed and pressure by Matlab. The experiment model pump for oil film characteristic of piston pair is designed to measure oil film thickness under the pressure of 18 MPa. The experiment results show that oil film thickness varies greatly under high pressure, and oil film thickness fluctuates sharply under low speed. The minimum oil film thickness increases with spindle speed increasing and oil film characteristic of piston pair based on the numerical analysis method is verified. This method lays a foundation for studying the friction performance of piston pair in the axial piston pump.更多还原

【Abstract】 The research on the oil film characteristic of piston pair is beneficial to the design and optimization of friction pair, which can improve the performance of piston pump. The fluid pressure of piston cavity is accurately obtained by AMEsim simulation. Oil film thickness field model of piston pair under the slanting state of piston is established, and the distribution law is numerically analyzed under different speed and pressure by Matlab. The experiment model pump for oil film characteristic of piston pair is designed to measure oil film thickness under the pressure of 18 MPa. The experiment results show that oil film thickness varies greatly under high pressure, and oil film thickness fluctuates sharply under low speed. The minimum oil film thickness increases with spindle speed increasing and oil film characteristic of piston pair based on the numerical analysis method is verified. This method lays a foundation for studying the friction performance of piston pair in the axial piston pump.更多还原

【关键词】 axial piston pump； piston pair； oil film characteristics； model pump； numerical analysis；
【Key words】 axial piston pump； piston pair； oil film characteristics； model pump； numerical analysis；

【基金】 Supported by the National Natural Science Foundation of China (No. 51975164);the Fundamental Research Foundation for Universities of Heilongjiang Province

【文献出处】 High Technology Letters ,高技术通讯(英文版) , 编辑部邮箱 ,2020年03期

【分类号】TH322
【下载频次】29

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