Hybrid permanent magnet and foil bearing system for complete passive levitation of rotor

Siddappa Iranna Bekinal, Tumkur Ramakrishna rao Anil, Sadanand Subhas Kulkarni, Soumendu Jana

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper deals with the complete passive levitation for a typical Jeffcott rotor and rotation of the same at the speeds around 40,000 rpm. The passive levitation is achieved by supporting the rotor axially by a permanent magnet bearing and discrete bump foil bearings for the radial support. The permanent magnet bearing is made up of three pairs of ring magnets arranged in Halbach pattern. Bump foil bearings are designed for rotor weight to provide the radial support to the rotor system. The proposed rotor-bearing configuration is analysed using Finite Element Analysis (FEA) software (ANSYS) for rotor dynamic characteristics. The designed rotor bearing system is fabricated and tested up to the speeds of 40,000 rpm. The system response is acquired using advanced rotordynamic data acquisition system. The experimental results show that the rotor is completely airborne and stable at the desired speed.

Original languageEnglish
Title of host publicationVibration Engineering and Technology of Machinery - Proceedings of VETOMAC X, 2014
EditorsJyoti K. Sinha
PublisherKluwer Academic Publishers
Pages939-949
Number of pages11
ISBN (Electronic)9783319099170
DOIs
Publication statusPublished - 2015
Event10th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2014 - Manchester, United Kingdom
Duration: 09-09-201411-09-2014

Publication series

NameMechanisms and Machine Science
Volume23
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference10th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2014
Country/TerritoryUnited Kingdom
CityManchester
Period09-09-1411-09-14

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering

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