An investigation into the swash plate vibration and pressure pulsation of piston pumps based on full fluid-structure interactions

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作者：Xiao-ping Ouyang ; Xu Fang ; Hua-yong Yang
刊名：Journal of Zhejiang University - Science A
出版年：2016
出版时间：February 2016
年：2016
卷：17
期：3
页码：202-214
全文大小：1,097 KB
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作者单位：Xiao-ping Ouyang (1)
Xu Fang (1)
Hua-yong Yang (1)

1. The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, 310027, China

刊物类别：Engineering

刊物主题：Physics
Mechanics, Fluids and Thermodynamics
Chinese Library of Science

出版者：Zhejiang University Press, co-published with Springer

ISSN：1862-1775

文摘

In this paper, dynamic analyses of the swash plate vibration and pressure pulsation of an aircraft piston pump based on fluid-structure interactions (FSIs) are presented. Models of the swash plate piston pumps with three FSIs (named full FSIs and non FSI) are given. The simulation results of the discharge pressures at different rotation speeds in the synthesized pump model and experiments show good agreement. The numerical simulation results of the forces on the swash plate and the flow rate of the outlet chamber are presented and compared. The results of the two models show that the discharge pressure pulsation mostly depends on the kinematic relations of the piston slipper-shoe units (FSI-1), and is almost isolated from the swash plate vibration. The full FSIs simulation shows that the swash plate vibration is strongly influenced by the pressure pulsation through the control actuator mechanism (FSI-2) and the control valve mechanism (FSI-3), but the non FSI model does not show the same result. The full FSIs model is much more accurate in predicting the vibration of the swash plate and the pulsation of the discharge pressure than the non FSI model.