Abstract:Electrohydraulicservos exhibit nonlinear behavior whenever subjected to dynamic inputs due to the presence of several significant nonlineari^ies in the servovalve and hydraulic motor. Some mechanical nonlinearities are often responsible for performance limitations as expressed by speed of response, accuracy and stob^li^y^ This paper deal with the dynamic characteristics of electrohydraulic velocity servos in order to throw more light on the complicated role play^d by stick-slip friction of the actuator.
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