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《China Mechanical Engineering》 2012-01
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Investigation of Cavitation Phenomena in Valve Port of a High Frequency Electro-hydraulic Digital Rotary Valve

Bai Jiping1,2 Ruan Jian1 1.The Key Laboratory of Mechanical Manufacture and Automation,Ministry of Education, Zhejiang University of Technology,Hangzhou,310014 2.Zhejiang Institute of Communication,Hangzhou,311112  
With the FLUENT software,by studying the flow field in the chambers of 2D digital valve,this paper explored the cavitation variation rule in extreme situations with an attempt to find the effects on valve port flow by bubble precipitating,developing and collapsing during the periodical and high-speed on-offs.The results show that cavitation causes flow rate congestion,and that the pressure fluctuation caused by the bubble collapse brings significant nonlinear impact on the valve controlled cylinder,which reduces accuracy of the valve ports' output waveform and output stability of the valve controlled cylinder vibrator.
【Fund】: 浙江省教育厅科研项目(Y200907081);; 浙江工业大学机械制造及自动化教育部重点实验室开放基金资助项目(2009EP008)
【CateGory Index】: TH137.5
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Chinese Journal Full-text Database 2 Hits
1 RUAN Jian,LI Sheng,ZHU Faming,JIA Wenang(The MOE Key Laboratory of Mechanical Manufacture and AutomationZhejiang University of Technology,Hangzhou 310014,China);Hydraulic Vibration Excited by 2D Valve[J];Machine Tool & Hydraulics;2008-10
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Chinese Journal Full-text Database 4 Hits
1 CHENG Hui,YU Zhe-qing,RUAN Jian,XING Tong,BAI Ji-ping;Research on the high frequency characteristics of a new electro-hydraulic vibrator test-bed[J];Chinese Hydraulics & Pneumatics;2010-06
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