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《中国航空学报(英文版)》 2014-01
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Theoretical study of flow ripple for an aviation axial-piston pump with damping holes in the valve plate

Guan Changbin;Jiao Zongxia;He Shouzhan;School of Automation Science and Engineering,Beihang University;Beijing Institute of Control Engineering;Science and Technology on Aircraft Control Laboratory,Beihang University;  
Based on the structure of a certain type of aviation axial-piston pump's valve plate which adopts a pre-pressurization fluid path(consisting a damping hole,a buffer chamber,and an orifice)to reduce flow ripple,a single-piston model of the aviation axial-piston pump is presented. This single-piston model comprehensively considers fluid compressibility,orifice restriction effect,fluid resistance in the capillary tube,and the leakage flow. Besides,the instantaneous discharge areas used in the single-piston model have been calculated in detail. Based on the single-piston model,a multi-piston pump model has been established according to the simple hydraulic circuit. The single- and multi-piston pump models have been realized by the S-function in Matlab/Simulink. The developed multi-piston pump model has been validated by being compared with the numerical result by computational fluid dynamic(CFD). The effects of the pre-pressurization fluid path on the flow ripple and the instantaneous pressure in the piston chamber have been studied and optimized design recommendations for the aviation axial-piston pump have been given out.
【Fund】: the support of the National Natural Science Foundation of China (No. 51235002);; the National Science Foundation for Distinguished Young Scholars (No. 50825502)
【CateGory Index】: V232
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Chinese Journal Full-text Database 5 Hits
1 LIU Xian-shuang;ZHAO Dong;TAO Si-wei;School of Technology,Beijing Forestry University;;Study on the Effect of the Vavle Plate Structure on Piston Pump Pressure Based on Virtual Prototype[J];Forestry Machinery & Woodworking Equipment;2013-12
2 WANG Zhi-qiang;GAO Dian-rong;HUANG Yao;Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Yanshan University;Key Laboratory of Advanced Forging & Stamping Technology and Science,Ministry of Education of China,Yanshan University;;Structural optimization and performance research on the piston pair of low speed high torque water hydraulic motor[J];Journal of China Coal Society;2013-S2
3 De-sheng WEN1,Zhi-li WANG 1,Jun GAO1,Yong ZHANG1,Shi-jun LV1,Tetsuhiro TSUKIJI2(1College of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China)(2College of Engineering and Applied Science,Sophia University,Tokyo 102-8554,Japan);Output speed and flow of double-acting double-stator multi-pumps and multi-motors[J];浙江大学学报A辑(应用物理与工程)(英文版);2011-04
4 WEI Xiu-ye;LU Zi-rong;WANG Hai-yan;;The Flow Characteristics Study of Axial Piston Pump Based on CFD Simulation[J];Chinese Hydraulics & Pneumatics;2013-09
5 YU Lijuan;WANG Xiaodong;ZHANG Xuecheng;Mechanical Science and Engineering College,Jilin University;;Control and Simulation of Flow Pulsation in Axial Plunger Pump[J];Journal of Xi'an Jiaotong University;2013-11
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