Identification of the Mathematical Model of a Servo Valve by means of a Square Wave Signal

  • Shichang Zhou
  • Xinming Cao
  • Chenrui Gao
  • Yanyong Yang
Conference paper
Part of the Advances in Simulation book series (ADVS.SIMULATION, volume 2)

Abstract

Paper describes the experimental results of identification of a two-stage servo valve with moving coil force motor by means of a square wave signal and the method of mathematical treatment. The transfer function of the valve identified is obtained as
$$ G(s) = \frac{{0.04767}}{{\frac{{{S^2}}}{{{{59.4}^2}}} + \frac{{2x0.47}}{{59.4}}s + 1}}$$
The step response of this transfer function was computed by digital simulation and was compared with the experimental results of the valve. Two lines withing 5% of one another.

Keywords

Sine Rile Domian 

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References

  1. 1.
    Tian Jishong, Liu Lianshang “Mathematical Model Identification of Electro-hydraulic Servo Valves” Hydr. and Pneu.,1983,4,p. 15(Chinese)Google Scholar
  2. 2.
    Wu Hang “Test and Analysis of Moving Coil Type Electro-hydraulic Servo Valve”, Paper on 1st Conference of Metallurgical Hydraulics(Chinese)Google Scholar
  3. 3.
    H. E. Merritt “Hydraulic Control Systems” John Wiley & Sons, Inc. 1967Google Scholar
  4. Mathematics Division of Nanjing Engineering Institute “Integration Transform” P. E. Press 1978 (Chinese)Google Scholar
  5. 5.
    E. C. Levy “Complex Curve Fitting” IRE Trans, on Automatic Control, May,1959Google Scholar
  6. 6.
    J. J. D’Azzo, C. H. Houpis “Linear Control System Analysis and Design” McGraw-Hill Book Co. 1981Google Scholar

Copyright information

© Akademie-Verlag Berlin 1988

Authors and Affiliations

  • Shichang Zhou
    • 1
  • Xinming Cao
    • 1
  • Chenrui Gao
    • 1
  • Yanyong Yang
    • 1
  1. 1.Mechanical Engineering DepartmentNortheast University of TechnologyShenyang, LiaoningP. R. China

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