Study on Frequency Response for a 2D Digital Servo Valve

China Mechanical Engineering ›› 2011, Vol. 22 ›› Issue (2): 215-219,242.

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Study on Frequency Response for a 2D Digital Servo Valve

Li Sheng;Ruan Jian;Meng Bin

Key Laboratory of Special Purpose Equipment and Advanced Processing Technology,Ministry of Education,Zhejiang University of Technology,Hangzhou,310014

Online:2011-01-25 Published:2011-01-27
Supported by:
National Natural Science Foundation of China（No. 50975258）

2D数字伺服阀频率特性研究

李胜;阮健;孟彬

浙江工业大学特种装备制造与先进加工技术教育部重点实验室,杭州,310014

基金资助:
国家自然科学基金资助项目(50975258)；浙江大学流体传动与控制国家重点实验室资助项目(GZKF-2008005)
National Natural Science Foundation of China（No. 50975258）

Abstract

Abstract:

The working principles of a 2D digital servo valve were described firstly, then the mathematical model of electro-mechanical converter was established and simulation analysis was executed. Finally a special controller for 2D digital servo valve was designed and the experimental research of electro-mechanical converter and the prototype of 2D digital servo valve were performed. Both theoretical simulation and experimental study illustrate that the electro-mechanical converter has an excellent dynamic response

whose frequency width is 250Hz at -3dB and -90° approximately, and the frequency width of 2D digital servo valve is about 130 HZ at 25% maximum spool displacement.

Key words:

2D , valve, servo valve, electro-mechanical converter, frequency response

摘要：

阐述了2D数字伺服阀的工作原理，建立了电-机械转换器的数学模型并进行了仿真分析，设计了2D数字伺服阀控制器，并对电-机械转换器及样阀进行了实验研究。理论和实验结果均表明，该电-机械转换器具有良好的频率特性，-3dB、-90°处的频宽约为250Hz。2D数字伺服阀在25％的最大阀开口下对应-3dB的频宽约为130Hz。

关键词:

2D阀, 伺服阀, 电-机械转换器, 频率特性

CLC Number:

TH137

LI Qing, RUAN Jian, MENG Ban.

Study on Frequency Response for a 2D Digital Servo Valve

[J]. China Mechanical Engineering, 2011, 22(2): 215-219,242.

李胜, 阮健, 孟彬.

2D数字伺服阀频率特性研究

[J]. 中国机械工程, 2011, 22(2): 215-219,242.

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Study on Frequency Response for a 2D Digital Servo Valve

2D数字伺服阀频率特性研究

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