Vol. 18, No. 3 (August 2005) 239-252   

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S. Farahat, H. Ajam

Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran
farahat@hamoon.usb.ac.ir , hajam@hamoon.usb.ac.ir

( Received: June 22, 2004 )

Abstract    In this research, the sensitivity analysis is applied to an electrohydraulic servovalve which is a nonlinear system. This system sensitivity study differs from previous studies by considering the dynamic behaviour and nonlinearity of the system performance. Different sensitivity analysis methods are compared to each other by studying the sensitivity of the actuator piston velocity of above servovalve with respect to eighteen parameters. By using the best method among the above mentioned methods, the sensitivity of the state variables of the sample system have been studied.


Keywords    Sensitivity Analysis- Nonlinear Systems- Hydraulic Control Systems



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