Abstract
Electrohydrostatic actuators are increasingly finding applications in different fields due to their numerous advantages with respect to electromechanical and conventional hydraulic systems. To understand their behavior, potentialities, limitations, and design aspects, the present paper deals with the modeling of such devices. The discussed phenomena are experimentally validated through the stationary and dynamic characterization tests of a rotary electrohydrostatic prototype. Results emphasize the role of mechanical and hydraulic dissipative effects and the fluid bulk modulus.
Issue Section:
Research Papers
References
1.
Kang
, K.
, Pachter
, M.
, Houpis
, C. H.
, and Rasmussen
, S.
, 1995
, “Modeling and Control of an Electro-Hydrostatic Actuator
,” National Aerospace and Electronics Conference
(NAECON 1995
), Dayton
, OH, May 22–26, pp. 545
–556
.2.
Firschemeier
, S.
, 1997
, “Electrohydrostatic Actuators for Aircraft Primary Flight Control—Types, Modelling and Evaluation
,” 5th Scandinavian International Conference on Fluid Power
(SICFP '97
), Linköping
, Sweden, May 28–30.3.
Bobrow
, J. E.
, and Desai
, J.
, 1995
, “A High Torque to Weight Ratio Robot Actuator
,” Robotica
, 13
(2
), pp. 201
–208
.4.
Galluzzi
, R.
, Tonoli
, A.
, and Amati
, N.
, 2015
, “Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
,” ASME J. Vib. Acoust.
, 137
(1
), p. 011012
.5.
Rupinsky
, M. J.
, and Dapino
, M. J.
, 2006
, “Smart Material Electrohydrostatic Actuator for Intelligent Transportation Systems
,” ASME
Paper No. IMECE2006-14542.6.
Daher
, N.
, and Ivantysynova
, M.
, 2014
, “An Indirect Adaptive Velocity Controller for a Novel Steer-by-Wire System
,” ASME J. Dyn. Syst., Meas. Control
, 136
(5
), p. 051012
.7.
Rabie
, G.
, 2009
, Fluid Power Engineering
, McGraw-Hill
, New York
.8.
Habibi
, S. R.
, and Burton
, R.
, 2007
, “Parameter Identification for a High-Performance Hydrostatic Actuation System Using the Variable Structure Filter Concept
,” ASME J. Dyn. Syst., Meas. Control
, 129
(2
), pp. 229
–235
.9.
Belloli
, D.
, Previdi
, F.
, Savaresi
, S. M.
, Cologni
, A.
, and Zappella
, M.
, 2010
, “Modeling and Identification of Electro-Hydrostatic Actuator
,” 5th IFAC Symposium on Mechatronic Systems
, Cambridge, MA, Sept. 13–15
.10.
Merritt
, H. E.
, 1967
, Hydraulic Control Systems
, Wiley
, New York
.11.
Manring
, N. D.
, 1997
, “The Effective Fluid Bulk Modulus Within a Hydrostatic Transmission
,” ASME J. Dyn. Syst., Meas. Control
, 119
(3
), pp. 462
–466
.12.
Owen
, W. S.
, and Croft
, E. A.
, 2003
, “The Reduction of Stick-Slip Friction in Hydraulic Actuators
,” IEEE/ASME Trans. Mechatron.
, 8
(3
), pp. 362
–371
.13.
Karassik
, I. J.
, Messina
, J. P.
, Cooper
, P.
, and Heald
, C. C.
, 2001
, Pump Handbook
, McGraw-Hill
, New York
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