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Electrohydraulic System Response - Nonlinear vs Linear
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English
Abstract
The results from an investigation of some of the effects of using a linearized model for prediction of the behavior of a nonlinear system are presented. The system studied is a velocity system using an electrohydraulic servoactuator to drive an inertial load. Both nonlinear and linearized system models are defined.
The result of defining optimal feedback values for an integral quadratic performance index is shown along with the effect of choice of nominal operating point on the linearized system transient response. Finally, linear and nonlinear transient responses are compared for a range of step amplitudes.
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Citation
Lance, G. and Kleaveland, A., "Electrohydraulic System Response - Nonlinear vs Linear," SAE Technical Paper 831328, 1983, https://doi.org/10.4271/831328.Also In
References
- Blackburn, J.F. Reethof, G. Shearer, J.L. Fluid Power Control MIT Press 1960
- Merritt, H.E. Hydraulic Control Systems John Wiley and Sons 1967
- de Pennington, A. 'tMannetje, J.J. Bell, R. “The Modelling of Electrohydraulic Control Valves and its Influence on the Design of Electrohydraulic Drives,” Journal of Mechanical Engineering Science 16 3 1974 196 204
- Martin, D.J. Burrows, C.R. “The Dynamic Characteristics of an Electrohydraulic Servovalve,” Journal of Dynamic Systems, Measurement and Control 98 4 December 1976 395 406
- Lance, G.M. Liang, C-G. McCleary, M.A. “Integrated Simulation of Vehicular Systems with Stabilization,” Proceedings, Coordinating Group on Modern Control Theory Oakland University 1982 387 410