Dynamic redesign of a flow control servo-valve using a pressure control pilot

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper, the dynamic performance of an unconventional two-spool flow control servo valve using a pressure control pilot is analyzed. Such valves are less expensive than typical servo-valves but also tend to be limited in their dynamic performance. Based on a previously developed eight state nonlinear model, we develop a simplified linear model which is able to capture the essential dynamics of the valve. Using root locus analysis method, the limitation in dynamic performance is shown to be due to a "zero" introduced by the structure of the interconnection of the subsystems. Design parameters that move the "zero" further to the left half plane, and do not adversely affect other steady state criteria are identified. The effectiveness of these parameters to improve the dynamic performance is demonstrated.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Dynamic Systems and Control Division - 2001
EditorsM.A. Franchek
Pages499-506
Number of pages8
Volume70
StatePublished - Dec 1 2002
Event2001 ASME International Mechanical Engineering Congress and Exposition - New York, NY, United States
Duration: Nov 11 2001Nov 16 2001

Other

Other2001 ASME International Mechanical Engineering Congress and Exposition
CountryUnited States
CityNew York, NY
Period11/11/0111/16/01

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  • Cite this

    Li, P. Y. (2002). Dynamic redesign of a flow control servo-valve using a pressure control pilot. In M. A. Franchek (Ed.), Proceedings of the ASME Dynamic Systems and Control Division - 2001 (Vol. 70, pp. 499-506)