The Generalized Response of Servovalve-Controlled, Single-Rod, Linear Actuators and the Influence of Transmission Line Dynamics

[+] Author and Article Information
J. Watton

Department of Mechanical Engineering and Energy Studies, University College, Cardiff, U.K.

J. Dyn. Sys., Meas., Control 106(2), 157-162 (Jun 01, 1984) (6 pages) doi:10.1115/1.3143730 History: Received March 25, 1982; Online July 21, 2009


The open-loop response of servovalve-controlled single-rod linear actuators in investigated for both the extending and retracting cases. A linearized frequency response technique is used to establish the probable type of dynamic behavior. Nondimensional results are presented as an aid to system design, and a boundary is established such that a simplified approximation may be used. A particular class of system is then examined where interconnecting transmission lines would be important, and the techniques previously used are modified accordingly. The techniques are verified with a precision actuator developed for fatigue testing of vehicle and airframe systems.

Copyright © 1984 by ASME
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