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TECHNICAL BRIEFS

Combining Leakage and Orifice Flows in a Hydraulic Servovalve Model

[+] Author and Article Information
Bora Eryilmaz, Bruce H. Wilson

Department of Mechanical, Industrial, and Manufacturing Engineering, Northeastern University, Boston 02115

J. Dyn. Sys., Meas., Control 122(3), 576-579 (Dec 17, 1999) (4 pages) doi:10.1115/1.1286335 History: Received December 17, 1999
Copyright © 2000 by ASME
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References

Sohl,  G. A., and Bobrow,  J. E., 1999, “Experiments and Simulations on the Nonlinear Control of a Hydraulic Servosystem,” IEEE Trans. Control Syst. Technol., 7, pp. 238–247.
Ellman, A., and Virvalo, T., 1996, “Formation of Pressure Gain in Hydraulic Servovalves and its Significance in System Behavior,” Proceedings of the ASME Fluid Power Systems and Technology Division, International Mechanical Engineering Congress and Exposition, Atlanta, GA, FPST-3, pp. 77–81.
Ellman, A., 1998, “Leakage Behavior of Four-Way Servovalve,” Proceedings of the ASME Fluid Power Systems and Technology Division, International Mechanical Engineering Congress and Exposition, Anaheim, CA, FPST-5, pp. 163–167.
Ellman A., Koskinen, K., and Vilenius, M., 1995, “Through-Flow in Short Annulus of Fine Clearance,” Proceedings of the ASME Dynamic Systems and Control Division, International Mechanical Engineering Congress and Exposition, San Francisco, CA, DSC-57, pp. 813–821.
Merritt, H. E., 1967, Hydraulic Control Systems, Wiley, New York, NY.
Thayer, W. J., 1962, “Specification Standards for Electrohydraulic Flow Control Servovalves,” Technical Report 117, Moog Inc.

Figures

Grahic Jump Location
Hydraulic servovalve configuration
Grahic Jump Location
Leakage flow (QS): experiment and simulation
Grahic Jump Location
Load pressure (PL): experiment and simulation

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