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Design of load spectrum for hydraulic pumps based on extreme value theory

  • Beihang University

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

Abstract

Hydraulic pumps with high reliability are important for airplanes, so the load spectrum of it in life tests should be designed approximate to real working conditions. And a way to design load spectrum without former experimental data is urgently needed. This paper focuses on designing the load spectrum for aircraft hydraulic pumps. Combing flight mission with flight profile to make flow rate demand analysis to obtain load cycle and basic load spectrum for tests. Based on extreme value theory, including Peaks Over Threshold (POT) analysis and General Pareto Distribution (GPD) Model, this paper presents a method of load spectrum extrapolation to reduce the influence of uncertainty in extreme situations. The original designed load spectrum is compared with the extrapolated load spectrum, and the latter shows a good fitting with original spectrum and a higher degree accuracy to real working conditions.

Original languageEnglish
Title of host publicationProceedings of the 2017 12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1321-1326
Number of pages6
ISBN (Electronic)9781538621035
DOIs
StatePublished - 2 Jul 2017
Event12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017 - Siem Reap, Cambodia
Duration: 18 Jun 201720 Jun 2017

Publication series

NameProceedings of the 2017 12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017
Volume2018-February

Conference

Conference12th IEEE Conference on Industrial Electronics and Applications, ICIEA 2017
Country/TerritoryCambodia
CitySiem Reap
Period18/06/1720/06/17

Keywords

  • extreme value theory
  • flow rate demand
  • hydraulic pumps
  • load extrapolation
  • load spectrum

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