高频电液数字转阀阀口气穴现象研究

中国机械工程 ›› 2012, Vol. 23 ›› Issue (1): 22-28.

高频电液数字转阀阀口气穴现象研究

白继平1,2;阮健1

1.浙江工业大学机械制造及自动化教育部重点实验室,杭州,310014

2.浙江交通职业技术学院,杭州,311112

出版日期:2012-01-10 发布日期:2012-01-15
基金资助:
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）
Zhejiang Provincial Scientific Research Project of Ministry of Education of China（No. Y200907081）

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

Online:2012-01-10 Published:2012-01-15
Supported by:
Zhejiang Provincial Scientific Research Project of Ministry of Education of China（No. Y200907081）

摘要/Abstract

摘要：

借助FLUENT软件对高频电液数字转阀（简称2D数字阀）阀腔流场进行研究,主要对阀口极端环境时的气穴变化规律进行深入探索,揭示2D数字阀阀芯高速旋转时阀口气泡析出、发育过程及溃灭特性对阀口流量的影响。研究结果表明,气穴现象不仅会造成流量阻塞,而且气泡溃灭引起的压力脉动还会对系统形成强非线性干扰,影响阀口输出波形的精度和阀控液压缸激振系统的稳定性。



关键词:

高频, 电液数字阀, 气穴, 流量饱和, 阀腔, 流场

Abstract:

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.

Key words: high frequency, electro-hydraulic digital valve, cavitation phenomena, saturated flow rate, valve chamber, flow field

中图分类号:

TH137.5

白继平1, 2, 阮健1.

高频电液数字转阀阀口气穴现象研究

[J]. 中国机械工程, 2012, 23(1): 22-28.

BAI Ji-Beng-1, 2, RUAN Jian-1.

Investigation of Cavitation Phenomena in Valve Port of a High Frequency Electro-hydraulic Digital Rotary Valve

[J]. China Mechanical Engineering, 2012, 23(1): 22-28.

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