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Design of a Hydraulic Actuator Test Stand for Non-Linear Analysis of Hydraulic Actuator Systems
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Pp. 169-183 in Automation Technology for Off-Road Equipment, Proceedings of the July 26-27, 2002 Conference (Chicago, Illinois, USA) 701P0502.(doi:10.13031/2013.10004)
Authors: Jill E. Krutz, David F. Thompson, Gary W. Krutz, Randall J. Allemang
Keywords: Non-linear hydraulic, Fluid power test stand, Vibration, Natural frequency, Envelope of stability, Pressure oscillations
Stability is imperative in the design of hydraulic systems. Servo-hydraulic systems are
inherently non-linear creating various nuances when analyzing the stability of the system.
Friction, port flow, saturation, impact loading, line dynamics, and boundary conditions are a few
of the many non-linearities found in servo-hydraulic systems which are to be analyzed using
advanced non-linear stability analysis techniques. Some effects of instabilities induced by nonlinearities
such as pressure oscillations, noise, etc., can be detrimental to the stability or operation
of hydraulic systems especially when the design is near the envelope of stability.