Dynamic Design of the High-Speed Rotor System Considering the Distribution of Strain Energy

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

Abstract

In order to optimize the dynamic properties of typical high-speed rotor system, a mechanical model of the high-speed rotor system considering the key structural features was established. Intrinsic relationship between the first bending critical speed, the reaction force at the bearing and the strain energy distribution of the rotor was investigated based on Rayleigh method and Euler beam theory. The results show that the first bending modal strain energy distribution corresponds to the first bending critical speed of rotor and the reaction force at the bearing. The bending critical speed and the proportion of strain energy of drum shaft are positively correlated with local angular stiffness in front of the turbine, the reaction force at the rear bearing and the proportion of strain energy of rear neck are positively correlated with local angular stiffness behind the turbine. The feasibility of the correlations on practical rotor was proved through a typical high-speed rotor.

Original languageEnglish
Title of host publicationProceedings of the 11th IFToMM International Conference on Rotordynamics - Volume 2
EditorsFulei Chu, Zhaoye Qin
PublisherSpringer Science and Business Media B.V.
Pages342-363
Number of pages22
ISBN (Print)9783031404580
DOIs
StatePublished - 2024
Event11th IFToMM International Conference on Rotordynamics, IFToMM 2023 - Beijing, China
Duration: 18 Sep 202321 Sep 2023

Publication series

NameMechanisms and Machine Science
Volume140
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference11th IFToMM International Conference on Rotordynamics, IFToMM 2023
Country/TerritoryChina
CityBeijing
Period18/09/2321/09/23

Keywords

  • Critical speeds
  • Design of dynamic properties
  • High-speed rotor
  • Reaction force at bearing
  • Strain energy distribution

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