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Nonlinear analysis of oscillations in aero-hydraulic actuation system considering load effect

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Hydraulic actuation control system demonstrates instability in several parameter regions. A nonlinear mathematical model of hydraulic rudder control system in airplane is established. Non-dimensional analysis is employed to analyze the regions of initial Hopf bifurcation which may lead to oscillations of hydraulic actuation system under the effect of load. Taking the system damping coefficient parameter as a reference, the load force of hydraulic actuators has great implications on the system stability. Numerical simulation using ODE solver indicates that stable impacting limit cycle exists at several particular parameters. The analysis in this paper can support the design and vibration control of the hydraulic rudder control system.

Original languageEnglish
Title of host publicationProceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages934-938
Number of pages5
ISBN (Electronic)9781479987702
DOIs
StatePublished - 24 Nov 2015
Event7th International Conference on Fluid Power and Mechatronics, FPM 2015 - Harbin, China
Duration: 5 Aug 20157 Aug 2015

Publication series

NameProceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015

Conference

Conference7th International Conference on Fluid Power and Mechatronics, FPM 2015
Country/TerritoryChina
CityHarbin
Period5/08/157/08/15

Keywords

  • Hopf bifurcation
  • hydraulic actuator
  • nonlinear analysis
  • system stability

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