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Analytical Study of the Nonlinear Characteristics of Hydraulic Servo Actuator

  • Beihang University

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

Abstract

The aircraft controls its attitude and trajectory by driving the deflection of various rudder surfaces through actuators. At present, hydraulic servo actuator is still one of the main ways to drive surface deflection for in-service aircraft in China due to its high precision and reliability. The hydraulic servo actuation system is a highly nonlinear system and has model parameter uncertainties. The existence of these nonlinear characteristics and uncertainties affects the system performance. This article establishes a linear mathematical model for jet-pipe valve-controlled hydraulic servo actuators. Based on the power bond graph, a nonlinear simulation model of jet-pipe hydraulic servo actuators is built on the AMESim simulation platform. The simulation employs deadband models, backlash models, and LuGre models to analyze the effects of the overlap between the valve sleeve and spool, the characteristics of the intermediate transmission mechanism on system performance, and the friction in the hydraulic motor.

Original languageEnglish
Title of host publicationProceedings of 2023 Chinese Intelligent Systems Conference - Volume III
EditorsYingmin Jia, Weicun Zhang, Yongling Fu, Jiqiang Wang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages13-23
Number of pages11
ISBN (Print)9789819968855
DOIs
StatePublished - 2023
Event19th Chinese Intelligent Systems Conference, CISC 2023 - Ningbo, China
Duration: 14 Oct 202315 Oct 2023

Publication series

NameLecture Notes in Electrical Engineering
Volume1091 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference19th Chinese Intelligent Systems Conference, CISC 2023
Country/TerritoryChina
CityNingbo
Period14/10/2315/10/23

Keywords

  • Jet pipe hydraulic servo actuator
  • Nonlinearity
  • Power bond graph

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