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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2001, Vol. 2 Issue (4): 421-425    DOI: 10.1631/jzus.2001.0421
Engineering Sciences     
RESEARCH ON STABILITY AND MINIMUM ORIFICE AREA OF HYDRAULIC SERVO POSITION CONTROL SYSTEM
WANG Xuan-yin, LIU Rong
The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China
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Abstract  This paper reports results of research on the stability of a hydraulic servo position system using generalization pulse code modulation (GPCM) and common on/off valves for hydraulic servo control. The describing function was first used to analyze the system\'s stability, and based on the nonlinear theory, an equation calculating the minimum orifice area of GPCM valves was derived by applying results of analysis on the stability of the GPCM control system. In the end, aimed at developing a hydraulic servo position system to be used in a paint robot, simulation and experiment were carried out. The results show that the theoretical conclusions accorded with practical results.

Key words： stability      orifice area      nonlinear      hydraulic servo position control system      GPCM     
Received: 29 January 2000     
CLC:  TP271.31  
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WANG Xuan-yin, LIU Rong. RESEARCH ON STABILITY AND MINIMUM ORIFICE AREA OF HYDRAULIC SERVO POSITION CONTROL SYSTEM. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2001, 2(4): 421-425.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2001.0421     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2001/V2/I4/421

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