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Nonlinear transient response of tilting 4 pad bearings-turbocharger systems

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

Abstract

High speed and high performance engines are often equipped with turbochargers to increase power density over the operating speed range. Tilting pad bearings are now much more applied in many types of rotor systems. This paper presents nonlinear dynamical behavior of a typical turbocharger supported by two tilting 4 pad bearings. The bearing oil-film force was calculated by a database method and the influence of both pad offset and preload were studied. The nonlinear transient vibration is represented by bifurcation diagrams. The results directly show that pad offset and preload greatly influence the nonlinear vibrations of the turbocharger-tilting pad bearings system. In some certain speed range, the motions of the bearing pads are different from that of the bearing journal centerline.

Original languageEnglish
Title of host publicationDynamics, Vibration and Control
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)9780791856253
DOIs
StatePublished - 2013
Externally publishedYes
EventASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013 - San Diego, CA, United States
Duration: 15 Nov 201321 Nov 2013

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume4 B

Conference

ConferenceASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013
Country/TerritoryUnited States
CitySan Diego, CA
Period15/11/1321/11/13

Keywords

  • Nonlinear transient response
  • Oil-film force database method
  • Tilting pad bearing
  • Turbocharger

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