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Eccentricity and rotational speed effect on the rotor-bearing

  • Bing Dai
  • , Guangbin Yu*
  • , Junpeng Shao
  • , Long Huang
  • *Corresponding author for this work
  • Harbin University of Science and Technology

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

Abstract

Bearing dimensionless nonlinear oil film force model is deduced based on Capone theory of cylindrical bearings in this paper. Jeffcot rigid rotor-bearing system dynamic equations are built based on nonlinear dynamics, bifurcation, chaos theory. Eccentricity increases with the speed of the system by writing MATLAB codes. It appears the periodic motion, times of periodic motion and a series of non-linear kinetics. The system eccentricity increases with a series of emergence of non-linear dynamics when speed conditions is fixed, which is the actual system design's basis. The finite element model of gas turbine rotor-bearing system is built by ANSYS software platform in this paper. The radial bearing deformation relationship are obtained by deformation theory of centrifugal force at high speed bearing radial deformation.

Original languageEnglish
Title of host publicationMechanical Engineering, Materials Science and Civil Engineering
Pages237-240
Number of pages4
DOIs
StatePublished - 2013
Event2012 International Conference on Mechanical Engineering, Materials Science and Civil Engineering, ICMEMSCE 2012 - Harbin, China
Duration: 18 Aug 201220 Aug 2012

Publication series

NameApplied Mechanics and Materials
Volume274
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2012 International Conference on Mechanical Engineering, Materials Science and Civil Engineering, ICMEMSCE 2012
Country/TerritoryChina
CityHarbin
Period18/08/1220/08/12

Keywords

  • Eccentricity
  • Nonlinear dynamics
  • Rotational speed
  • Rotor-bearing system

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