A high-speed hysteresis motor spindle for machining applications

An analysis of suitable drive technologies for use in a new high-speed machining spindle was performed to determine critical research areas. The focus is on a hysteresis motor topology using a solid, inherently-balanced D2 steel shaft. An analytical model of the motor is devised in order to make performance predictions and optimization, and an experimental apparatus is constructed in order to verify the predictions of the model and investigate speed limits. The model's limitations due to a still-incomplete understanding of the vector hysteresis properties of magnetic steels are noted, and a proposal for an experiment to resolve this limitation is presented. The model predicts that the motor performance is optimized for a very thin ring of hysteretic steel. The experimental apparatus used a solid rotor. It was run up to a speed of 11,000 RPM and torque-speed curves with various drive parameters are measured.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Mechanical Engineering.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2014

Author dc:creator

• Bayless, Jacob D. (Jacob Daniel)

Advisor dc:contributor.advisor

• Alexander Slocum.

• Mechanical Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/87955

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/87955