{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/101187"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/101187","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Mechanical design and validation of 1 MW permanent magnet synchronous machine (PMSM)","abstract":"This thesis focuses on a high frequency, high power density (8 hp/lb), 1 MW power output electric motor design to double the power density of electric machines, bringing us closer to electrified propulsion. This thesis focuses on the mechanical analysis and design for a specially designed 1 MW permanent magnet synchronous electric machine. First of all the design intention or design topology will be explained. A high speed, high frequency, permanent magnet synchronous machine is designed. An inside-out configuration was chosen for its high peak efficiency and large tip speed. There are also other innovative designs such as Halbach array magnets and air gap windings. Combination of these designs does impose challenges for the mechanical design of the motor. Not only does mechanical integrity like strength need to be considered, but dynamic performance, vibration and thermal performance would also face more challenges when it comes to actual operation. The thesis will first go over some trade-off study and analysis before we introduce our design. Then the thesis mainly addresses analysis for rotor dynamics as well as fan performance. Design challenges are analyzed by analytical equations, numerical methods like finite element analysis and finally test results.","abstract_html":"This thesis focuses on a high frequency, high power density (8 hp/lb), 1 MW power output electric motor design to double the power density of electric machines, bringing us closer to electrified propulsion. This thesis focuses on the mechanical analysis and design for a specially designed 1 MW permanent magnet synchronous electric machine. First of all the design intention or design topology will be explained. A high speed, high frequency, permanent magnet synchronous machine is designed. An inside-out configuration was chosen for its high peak efficiency and large tip speed. There are also other innovative designs such as Halbach array magnets and air gap windings. Combination of these designs does impose challenges for the mechanical design of the motor. Not only does mechanical integrity like strength need to be considered, but dynamic performance, vibration and thermal performance would also face more challenges when it comes to actual operation. The thesis will first go over some trade-off study and analysis before we introduce our design. Then the thesis mainly addresses analysis for rotor dynamics as well as fan performance. Design challenges are analyzed by analytical equations, numerical methods like finite element analysis and finally test results.","abstract_has_math":false,"creators":["Zheng, Lijun"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Haran, Kiruba"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-09-04T20:36:44Z","date_published":"2018-09-04T20:36:44Z","updated_at":"2026-07-22T22:24:38Z","subjects":["Electric Machinery, Electro-mechanical system"],"languages":["en"],"rights":["Copyright 2018 Lijun Zheng"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/101187","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Haran, Kiruba"]},{"key":"dc:creator","label":"Author","values":["Zheng, Lijun"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-09-04T20:36:44Z","2020-09-05T09:15:32Z","2018-04-18","2018-05"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Electric Machinery, Electro-mechanical system"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2018 Lijun Zheng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/101187"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This thesis focuses on a high frequency, high power density (8 hp/lb), 1 MW power output electric motor design to double the power density of electric machines, bringing us closer to electrified propulsion. This thesis focuses on the mechanical analysis and design for a specially designed 1 MW permanent magnet synchronous electric machine. First of all the design intention or design topology will be explained. A high speed, high frequency, permanent magnet synchronous machine is designed. An inside-out configuration was chosen for its high peak efficiency and large tip speed. There are also other innovative designs such as Halbach array magnets and air gap windings. Combination of these designs does impose challenges for the mechanical design of the motor. Not only does mechanical integrity like strength need to be considered, but dynamic performance, vibration and thermal performance would also face more challenges when it comes to actual operation. The thesis will first go over some trade-off study and analysis before we introduce our design. Then the thesis mainly addresses analysis for rotor dynamics as well as fan performance. Design challenges are analyzed by analytical equations, numerical methods like finite element analysis and finally test results.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-05-01","The student, Lijun Zheng, accepted the attached license on 2018-04-18 at 08:51.","The student, Lijun Zheng, submitted this Thesis for approval on 2018-04-18 at 08:58.","This Thesis was approved for publication on 2018-04-18 at 15:27.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12335 on 2018-08-31 at 17:20:25","Made available in DSpace on 2018-09-04T20:36:44Z (GMT). No. of bitstreams: 3 ZHENG-THESIS-2018.pdf: 9814210 bytes, checksum: 8a71f12ddd712165ac46c1bd23e45c84 (MD5) final.tex: 106428 bytes, checksum: b1d1b954cbb4f62906f460eefd16fa4c (MD5) LICENSE.txt: 4208 bytes, checksum: b9f1d791f7dd72441b9f001e1d2b3cb1 (MD5) Previous issue date: 2018-04-18","Embargo set by: Seth Robbins for item 107271 Lift date: 2020-09-04T20:37:00Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107271 Lift date: 2020-09-04T20:42:08Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only Restriction Lifted for Item 107271 on 2020-09-05T09:15:32Z."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Mechanical design and validation of 1 MW permanent magnet synchronous machine (PMSM)"]}]}],"canonical_facts":{"dc:contributor":["Haran, Kiruba"],"dc:creator":["Zheng, Lijun"],"dc:date":["2018-09-04T20:36:44Z","2020-09-05T09:15:32Z","2018-04-18","2018-05"],"dc:description":["This thesis focuses on a high frequency, high power density (8 hp/lb), 1 MW power output electric motor design to double the power density of electric machines, bringing us closer to electrified propulsion. This thesis focuses on the mechanical analysis and design for a specially designed 1 MW permanent magnet synchronous electric machine. First of all the design intention or design topology will be explained. A high speed, high frequency, permanent magnet synchronous machine is designed. An inside-out configuration was chosen for its high peak efficiency and large tip speed. There are also other innovative designs such as Halbach array magnets and air gap windings. Combination of these designs does impose challenges for the mechanical design of the motor. Not only does mechanical integrity like strength need to be considered, but dynamic performance, vibration and thermal performance would also face more challenges when it comes to actual operation. The thesis will first go over some trade-off study and analysis before we introduce our design. Then the thesis mainly addresses analysis for rotor dynamics as well as fan performance. Design challenges are analyzed by analytical equations, numerical methods like finite element analysis and finally test results.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-05-01","The student, Lijun Zheng, accepted the attached license on 2018-04-18 at 08:51.","The student, Lijun Zheng, submitted this Thesis for approval on 2018-04-18 at 08:58.","This Thesis was approved for publication on 2018-04-18 at 15:27.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12335 on 2018-08-31 at 17:20:25","Made available in DSpace on 2018-09-04T20:36:44Z (GMT). No. of bitstreams: 3 ZHENG-THESIS-2018.pdf: 9814210 bytes, checksum: 8a71f12ddd712165ac46c1bd23e45c84 (MD5) final.tex: 106428 bytes, checksum: b1d1b954cbb4f62906f460eefd16fa4c (MD5) LICENSE.txt: 4208 bytes, checksum: b9f1d791f7dd72441b9f001e1d2b3cb1 (MD5) Previous issue date: 2018-04-18","Embargo set by: Seth Robbins for item 107271 Lift date: 2020-09-04T20:37:00Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107271 Lift date: 2020-09-04T20:42:08Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only Restriction Lifted for Item 107271 on 2020-09-05T09:15:32Z."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/101187"],"dc:language":["en"],"dc:rights":["Copyright 2018 Lijun Zheng"],"dc:subject":["Electric Machinery, Electro-mechanical system"],"dc:title":["Mechanical design and validation of 1 MW permanent magnet synchronous machine (PMSM)"],"dc:type":["text"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:38Z"}