skip to content
Design of a continuously variable magnetic gear Preview this item
ClosePreview this item

Design of a continuously variable magnetic gear

Author: Pavithra Padmanathan; University of North Carolina at Charlotte. Department of Electrical and Computer Engineering.
Publisher: ©2013.
Dissertation: M.S.E.E. University of North Carolina at Charlotte 2013
Edition/Format:   Thesis/dissertation : Thesis/dissertation : Manuscript   Archival Material : English
Database:WorldCat
Summary:
A magnetic gear creates speed change by modulating the magnetic field harmonics created by the magnetic rotors. A magnetic gear enables a contactless mechanism for speed amplification to be achieved. Magnetic gears do not require gear lubrication; they have inherent overload protection, no backlash error and have the potential for high efficiency. This thesis investigates a magnetic gear that is capable of  Read more...
Getting this item's online copy... Getting this item's online copy...

Find a copy in the library

Getting this item's location and availability... Getting this item's location and availability...

WorldCat

Find it in libraries globally
Worldwide libraries own this item

Details

Material Type: Thesis/dissertation, Manuscript
Document Type: Book, Archival Material
All Authors / Contributors: Pavithra Padmanathan; University of North Carolina at Charlotte. Department of Electrical and Computer Engineering.
OCLC Number: 875395022
Notes: UNC Charlotte Libraries notes:
jt 040214
Description: 120 leaves : illustrations ; 29 cm
Responsibility: by Pavithra Padmanathan.
Local System Bib Number:
System.Supplied@2014-04-02,08:31:52

Abstract:

A magnetic gear creates speed change by modulating the magnetic field harmonics created by the magnetic rotors. A magnetic gear enables a contactless mechanism for speed amplification to be achieved. Magnetic gears do not require gear lubrication; they have inherent overload protection, no backlash error and have the potential for high efficiency. This thesis investigates a magnetic gear that is capable of continuously varying the gear ratio in order to enable a constant magnified output speed to be generated from a variable input speed. This is achieved by integrating a stator into the magnetic gear structure. A flux focusing inner rotor topology is utilized and the performance of this continuously variable magnetic gear is studied for different stator winding layouts using finite element analysis. A spatial harmonic analysis is conducted through which the torque contribution of each harmonic is calculated using Maxwell's stress tensor method. This analysis is validated with transient and magnetostatic finite element analysis. A modified and improved topology of a continuously variable magnetic gear employing rare earth magnets is also proposed in this thesis.
Retrieving notes about this item Retrieving notes about this item

Reviews

User-contributed reviews

Tags

Be the first.
Confirm this request

You may have already requested this item. Please select Ok if you would like to proceed with this request anyway.

Close Window

Please sign in to WorldCat 

Don't have an account? You can easily create a free account.