Effect of flexible damped bearing-supports on the dynamic stability of high-speed turbochargers

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

Abstract

The aim of this study is to analytically design flexible damped bearing-supports in order to improve the dynamic characteristics of the rotor-bearing system. The finite-element model of the turbocharger rotor with linearized bearing dynamic coefficients is used to solve for the logarithmic decrements and hence the stability map. The design process attempts to find the optimum dynamic characteristics of the flexible damped bearing-support that would give best dynamic stability of the rotor-bearing system. The method is successful in greatly improving the dynamic stability of the turbocharger and may also lead to a total linear stability throughout the entire speed range when used besides the enhanced-performance hydrodynamic bearings.

Original languageEnglish
Title of host publicationDynamics, Vibration and Control
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)9780791856246
DOIs
StatePublished - 2013

Publication series

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

ASJC Scopus subject areas

  • Mechanical Engineering

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