Skip to main navigation Skip to search Skip to main content

Numerical Analysis of Seal Force Under Brush Seal Hysteresis Effect

  • Shanghai University
  • School of Mechatronics Engineering, Harbin Institute of Technology

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

Abstract

Brush seal has certain advantages over traditional labyrinth seal. As the hysteresis characteristics of the brush seal is a key factor affecting its sealing performance, it is particularly important to conduct in-depth study on the seal force. This paper takes hysteresis as the premise of research, and establishes the model of brush seal force with whole circle bristles under the hysteresis considering the 3D bending of bristles, and set up the dynamic equation of brush seal force for whole circle bristles. This work further studies the influence of system parameters on the brush seal force under the hysteresis, and compares the influence of each system parameter on seal force. And then compared with the model without hysteresis to study the influence degree of hysteresis effect on seal force. The results show that the hysteresis has a great influence on the variation trend of brush seal force, and the seal force is much smaller when the hysteresis effect is taken into account than that not considered. The increase of bristle inclination is beneficial to increase the stability of the rotor system, but for the seal force on the rotor, the greater lay angle is not better. It is of great significance to study the seal force under the lag of brush seal to further understand the sealing characteristics of brush seal.

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.
Pages1-10
Number of pages10
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

  • 3D Bending
  • Brush Seal
  • Brush Seal Force
  • Hysteresis
  • Rotor System

Fingerprint

Dive into the research topics of 'Numerical Analysis of Seal Force Under Brush Seal Hysteresis Effect'. Together they form a unique fingerprint.

Cite this