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Vibration Optimization Design and Experiment for Support of Aeroengine High-Speed Rotor System

  • Weijian Nie*
  • , Xiaoguang Yang
  • , Wangqun Deng
  • , Hubiao Tang
  • *Corresponding author for this work
  • Beihang University
  • AECC Hunan Aviation Powerplant Research Institute
  • Aero Engine Corporation of China

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

Abstract

In view of the phenomenon that the vibration acceleration of the adapter support was too large during the dynamic characteristic test of a gas generator rotor, the cause analysis and vibration optimization research of the adapter support were carried out. The finite element method was used to establish the support modal calculation model, and the first five stages modal vibration modes and frequencies were obtained. It was determined that the main reason for the excessive vibration of the support was that there were multiple harmful resonance frequencies within the operating speed range of the rotor. Three kinds of test support structure were designed and compared, and the preferred scheme was verified by tests without gas generator rotor and with gas generator rotor respectively. The results indicate that the selected support does not have harmful resonance frequencies within the operating speed range of the rotor, and the vibration acceleration at high speeds is significantly reduced. The research provides a guarantee for the rotor dynamics test of aircraft engines and can be extended to the design of other test supports.

Original languageEnglish
Title of host publicationProceedings of the 2nd International Conference on Mechanical System Dynamics - ICMSD 2023
EditorsXiaoting Rui, Caishan Liu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1413-1424
Number of pages12
ISBN (Print)9789819980475
DOIs
StatePublished - 2024
Event2nd International Conference of Mechanical System Dynamics, ICMSD 2023 - Beijing, China
Duration: 1 Sep 20235 Sep 2023

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference2nd International Conference of Mechanical System Dynamics, ICMSD 2023
Country/TerritoryChina
CityBeijing
Period1/09/235/09/23

Keywords

  • Aero-engine
  • Experimental verification
  • Finite element
  • High-speed rotor
  • Test support
  • Vibration modal

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