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Ancient Temple Carts—Modifications for Structure and Steering Read chapter Read first chapter

2015 | OriginalPaper | Chapter

Hybrid Permanent Magnet and Foil Bearing System for Complete Passive Levitation of Rotor

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

Published in: Vibration Engineering and Technology of Machinery

Publisher: Springer International Publishing

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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 rotor-dynamic data acquisition system. The experimental results show that the rotor is completely airborne and stable at the desired speed.

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Metadata
Title
Hybrid Permanent Magnet and Foil Bearing System for Complete Passive Levitation of Rotor
Authors
Siddappa Iranna Bekinal
Tumkur Ramakrishna rao Anil
Sadanand Subhas Kulkarni
Soumendu Jana
Copyright Year
2015
Book
Vibration Engineering and Technology of Machinery

Print ISBN: 978-3-319-09917-0

Electronic ISBN: 978-3-319-09918-7

Copyright Year: 2015

DOI
https://doi.org/10.1007/978-3-319-09918-7_83

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