Skip to main navigation Skip to search Skip to main content

Research on the Experimental System for Testing Oil Film Stiffness of the Cylinder Block/Valve Plate Interface of EHA Piston Pump

  • Beihang University
  • Laboratory of Aerospace Servo Actuation and Transmission

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

Abstract

Electro-hydrostatic actuator (EHA) is a widely used power by wire integrated actuation in aircraft. The cylinder block/valve plate interface is the most critical friction pair of EHA piston pump, which significantly influences the overall performance and service life of EHA. Wide range of speed and pressure condition demanding in real flight causes great challenge to the bearing capacity of the cylinder block/valve plate interface. It is necessary to study the oil film stiffness in this friction pair. This paper presents a new effective test method for the oil film stiffness of the cylinder block/valve plate interface in EHA piston pump. A flow field model is established to describe the pressure distribution, and an oil film stiffness test bench is built. Based on the simulation result, the oil film stiffness test is carried out, and the best oil film support stiffness under different working conditions is obtained.

Original languageEnglish
Title of host publicationProceedings of 2022 Chinese Intelligent Systems Conference - Volume II
EditorsYingmin Jia, Weicun Zhang, Yongling Fu, Shoujun Zhao
PublisherSpringer Science and Business Media Deutschland GmbH
Pages179-188
Number of pages10
ISBN (Print)9789811962257
DOIs
StatePublished - 2022
Event18th Chinese Intelligent Systems Conference, CISC 2022 - Beijing, China
Duration: 15 Oct 202216 Oct 2022

Publication series

NameLecture Notes in Electrical Engineering
Volume951 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference18th Chinese Intelligent Systems Conference, CISC 2022
Country/TerritoryChina
CityBeijing
Period15/10/2216/10/22

Keywords

  • Cylinder block/valve plate interface
  • EHA piston pump
  • Stiffness of oil film
  • Test bench

Fingerprint

Dive into the research topics of 'Research on the Experimental System for Testing Oil Film Stiffness of the Cylinder Block/Valve Plate Interface of EHA Piston Pump'. Together they form a unique fingerprint.

Cite this