Model Identification and Analysis of a High Performance Hydrostatic Actuation System 2000-01-2619
A hydrostatic actuation system referred to as the Electro Hydraulic Actuator (EHA) has been designed and prototyped. In this paper, a mathematical model of the EHA is reviewed and analyzed. This theoretical analysis is supported by open-loop experimental results that indicate the presence of nonlinearities but at a degree that is considerably less than that of conventional hydraulic systems with servo-valves. The behavior of the system can be approximated as piece-wise linear with the damping ratio and natural frequency changing according to a piece-wise operating region. The EHA model is used in conjunction with experimentation and numerical optimization for quantifying the influence of unknown parameters in this system. A parametric model for the EHA is subsequently proposed and validated.
Citation: Habibi, S., Pastrakuljic, V., and Goldenberg, A., "Model Identification and Analysis of a High Performance Hydrostatic Actuation System," SAE Technical Paper 2000-01-2619, 2000, https://doi.org/10.4271/2000-01-2619. Download Citation
Author(s):
S. R. Habibi, V. Pastrakuljic, A. A. Goldenberg
Affiliated:
University of Saskatchewan, University of Toronto
Pages: 12
Event:
International Off-Highway & Powerplant Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Topics in Hydraulics-SP-1554, SAE 2000 Transactions Journal of Commercial Vehicles-V109-2
Related Topics:
Mathematical models
Hydraulic systems
Optimization
Identification
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