Multi-objective optimization of surface texture for the slipperswash plate interface in EHA pumps

2022年第17卷第4期

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《机械工程前沿（英文）》 >> 2022年第17卷第4期 doi: 10.1007/s11465-022-0704-4

Multi-objective optimization of surface texture for the slipperswash plate interface in EHA pumps

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发布日期：0000-00-00

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

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