Design of a Rig to Assess the Structural Performance of Rotors for High Speed Electric Machines

Levi Mallin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The usage of high-speed electric machines (HSEM) has increased due to the performance gains over mechanical transmission. However, the permanent magnets (PM) used within the electromagnetic rotor have low tensile strength and are susceptible to failure. For high-speed applications, surface-mounted PM rotors are most suitable, consisting of three interfering components. Accurate mechanical analysis of the rotor is required to predict a successful rotor design. Generalised plane strain (GPS) theory has been developed for three-cylinder rotors and requires experimental validation. In this paper, a test rig and suitable rotor are successfully designed to experimentally verify the GPS theory, with reduced complexity when compared to those in existing literature. The test rig enables the use of digital image correlation (DIC) to analyse the rotor surface strain, requiring a rotor design that produced enough outer surface strain to be detected. The result can then be compared to the GPS theory prediction for validation.

Original languageEnglish
Title of host publicationAdvances in Manufacturing Engineering and Materials II
Subtitle of host publicationProceedings of the International Conference on Manufacturing Engineering and Materials, ICMEM 2020
EditorsSergej Hloch, Dagmar Klichová, Frank Pude, Grzegorz M. Krolczyk, Somnath Chattopadhyaya
PublisherSpringer, Cham
Number of pages23
ISBN (Electronic)9783030719562
ISBN (Print)9783030719555
Publication statusPublished - 17 Mar 2021
EventInternational Conference on Manufacturing Engineering and Materials - Nový Smokovec, Slovakia
Duration: 21 Jun 202125 Jun 2021

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364


ConferenceInternational Conference on Manufacturing Engineering and Materials
Abbreviated titleICMEM 2020
CityNový Smokovec


Dive into the research topics of 'Design of a Rig to Assess the Structural Performance of Rotors for High Speed Electric Machines'. Together they form a unique fingerprint.

Cite this