Sensitivity Analysis of Parameter Changes in Nonlinear Hydraulic Control Systems

In this research, the sensrtrvuy analysis is applied to an electrohydrautic servovalve which is a nonlinear system, this system sensitivity study differs from previous studies by considering the dynamic behaviour and nonlinearity of the systciti 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 ofthe sample system have been studied