Novel Magnet Structures for Mechanically Robust Linear Motors

Linear motors form the backbone to many nanometer-precision machine tools, providing precise and smooth force to drive heavy stages at high speeds. In the magnet arrays of linear motors, the permanent magnets must be attached to the backrion to transmit force to the rest of the system. This connection usually is made with an epoxy bond. As machine tools are pressed harder for ever longer service lives, the epoxy's limited fatigue life can be exceeded, potentially leading to a mechanical failure. This poses a serious problem to the growth of the machine tool industry. Interior permanent-magnet (IPM) motors, found in nearly every electric car, offer an interesting approach to solve this problem. In an IPM motor, the magnets are retained in slots in the rotor laminations, providing a robust mechanical constraint.

Name thesis:degree_name

Master

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Mechanical Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2020

Author dc:creator

• Brown, Austin R.,S.M.Massachusetts Institute of Technology.

Advisor dc:contributor.advisor

• David L. Trumper.

• Mechanical Engineering.

Statement dc:rights

• MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.

Licence dc:rights.uri

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

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/127857

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/127857