A DOUBLE-TANK METHOD FOR THE IDENTIFICATION OF PNEUMATIC VALVES’ FLOW-RATE CHARACTERISTICS

Authors

  • Zhao Wei School of MechanicalEngineering, Shanghai Jiao Tong University,Min Hang District,Shanghai 200240, China
  • Ye Qian School of Mechanical Engineering, Shanghai Jiao Tong University,Min Hang District,Shanghai 200240, China
  • Meng GuoXiang School of Mechanical Engineering, Shanghai Jiao Tong University,Min Hang District,Shanghai 200240, China

Keywords:

flow rate characteristics, identification precision, identification algorithm, double-tank test circuit

Abstract

In this paper, a new isothermal tank test circuit composed of two tanks and a new data-processing algorithm called Cbm method are proposed to measure the flow-rate characteristics of some pneumatic valves. The double-tank circuit is used to test some solenoid valves such as inner pilot solenoid, which the traditional isothermal discharge method can not apply to. And Cbm method changes the identification procedure of multivariable unconstrained optimal algorithm, which evidently improves the identification precision of critical pressure ratio and subsonic index.

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Author Biographies

Zhao Wei, School of MechanicalEngineering, Shanghai Jiao Tong University,Min Hang District,Shanghai 200240, China

Zhao Wei is a Ph. D. (ABD). at School of Mechanical Engineering, ShangHai JiaoTong University, China. His main research interests in fluid power transmission and control.

Ye Qian, School of Mechanical Engineering, Shanghai Jiao Tong University,Min Hang District,Shanghai 200240, China

Ye Qian is an associate researcher at ShangHai JiaoTong University. He receives Ph. D. degree from Harbin industry University in 2002. One of his present research efforts involves the simulation and control of pneumatic system and research on the flow-rate characteristics of pneumatic components.

Meng GuoXiang, School of Mechanical Engineering, Shanghai Jiao Tong University,Min Hang District,Shanghai 200240, China

Meng GuoXiang is a professor at ShangHai JiaoTong University. She receives Ph. D. degree from University of Wisconsin-Madison in 1987. One of her present research efforts involves the simulation and control of pneumatic transmission system.

References

Andersen B. 1967. The Analysis and Design of Pneumatic

Systems. John Wiley and Sons, Inc.

Bates, D. M. and Watts, D. G. 1988. Nonlinear Regression

Analysis and Its Applications. John

Wiley& Sons, Inc.

de las Heras, S. 2001. A new experimental algorithm

for the evaluation of the true sonic conductance of

pneumatic components using the characteristic

unloading time. International Journal of Fluid

Power. Vol 2, No 1, pp. 17 - 24.

International Organization for Standardization.

Pneumatic fluid power-components using

compressible fluids-determination of flow-rate

characteristics (ISO6358). S Switzerland.

International Organization for Standardization.

Pneumatic fluid power - Determination of

flow-rate characteristics of components using compressible

fluids - Part 3: Discharge test as alternate

test methods. (ISO/DIS 6358-3).

Kawashima, K., Ishii, Y., Funaki, T. and Kagawa.

Determination of flow rate characteristics of

pneumatic solenoid valves using an isothermal

chamber. Transactions ASME, Fluids Eng. Vol.

, pp. 273 - 279.

Kuroshita, K., Sekiguchi, Y., Osiki, K. and Oneyama,

N. 2004. Development of new test method

for flow rate characteristics of pneumatic components.

Bath Workshop on power transmission and

Motion Control.

Lihong, Y., Chengliang, L. and Xuanfang, Z. 2008.

Effects of polytrophic exponent on data processing

methods used in constant volume discharge. Chinese

journal of mechanical engineering, Vol.21,

No.1, pp: 53 - 56

Montague, R. and Watton, J. 2005. Analysis and

automated testing of a miniature pneumatic valve

for hospital patient support equipment. International

Journal of Fluid Power, Vol 6, No 2, pp. 57 -

Qian, Y. and Xiang, M. G. 2008. Identification of the

flow-rate characteristic of a pneumatic valve by the

instantaneous polytrophic exponent. Measurement

Science and Technology, Vol.19.057002.

Sanville, F. E. 1971. A new method of specifying the

flow capacity of pneumatic fluid power valves. Hydraulic

Pneumatic Power, Vol. 3, pp.120 - 126.

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Published

2011-03-01

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Original Article