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Dynamic Analysis of the Finger Seal-Rotor System

  • School of Mechatronics Engineering, Harbin Institute of Technology

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

Abstract

Finger seals are widely concerned because of their good sealing performance and low cost. Due to its unique structure and installation, there are complex interactions between the seal laminates, which undoubtedly affect the overall stiffness of the seal. Therefore, it is necessary to conduct an in-depth study on the sealing force model of finger seals. This paper divides the interaction seal force of the finger seal into two parts, the finger beam and finger boot, and establishes a nonlinear seal force model that considers the interaction between finger laminates. A nonlinear dynamics rotor-finger seal system is built, and its dynamic laws are studied by Poincaré mapping, axis trajectory, spectrum diagram and phase diagram. The research in this paper can be used to predict the dynamic behavior of finger seal-rotor systems and ensure the stable operation of rotor systems.

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.
Pages156-167
Number of pages12
ISBN (Print)9783031404580
DOIs
StatePublished - 2024
Externally publishedYes
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

  • Finger Seal
  • Friction
  • Rotor Dynamic

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