0
research-article

A Pragmatic Optimization of Axial Stack-Radial Passive Magnetic Bearings

[+] Author and Article Information
Lijesh K.P.

Assistant Lecturer, Rotor Dynamics Laboratory, Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, India
lijesh_mech@yahoo.co.in

Mrityunjay Doddamani

Assistant Professor, Rotor Dynamics Laboratory, Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, India
mrdoddamani@nitk.edu.in

Siddappa I. Bekinal

Associate Professor, Department of Mechanical Engineering, KLS Gogte Institute of Technology, Belagavi, Karnataka, India
sibekinal@git.edu

1Corresponding author.

ASME doi:10.1115/1.4037847 History: Received March 14, 2017; Revised August 26, 2017

Abstract

Passive Magnetic Bearing's (PMB) adaptability for both lower and higher speed applications demands, detailed and critical analysis of design, performance optimization and manufacturability. Optimization techniques for stacked PMB published in recent past are less accurate with respect to complete optimum solution. In this context, the present work deals with a pragmatic optimization of axially stacked PMBs for the maximum radial load using three-dimensional (3D) equations. Optimization for three different PMB configurations: monolithic, conventional and rotational magnetized direction (RMD) is presented based on the constraints, constants and bounds of the dimensions obtained from published literature. Further, to assist the designers, equations to estimate the mean radius and clearance, being crucial parameters are provided for the given axial length and outer radius of the stator with objective of achieving maximum load carrying capacity. A comparison of the load carrying capacity of conventional stacked PMB using the proposed equation with equation provided in literature is compared. Finally, effectiveness of the proposed pragmatic optimization technique is demonstrated by analyzing three examples with reference to available literature.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In