{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:31:42Z","timestamp":1760236302419,"version":"build-2065373602"},"reference-count":10,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,11,11]],"date-time":"2021-11-11T00:00:00Z","timestamp":1636588800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>In engineering application, the hot press assembly technology is often used to improve the stability of the rotor structure, but the conventional design methods cannot effectively evaluate the influence of this process on the rotor strength, which easily causes the rotor strength to exceed its safety margin range, and seriously it will lead to the failure of the rotor structure. This paper takes the cylindrical magnet surface-mounted high-speed permanent magnet synchronous motor rotor as the research object. Firstly, the influence of the assembly pressing force on the rotor stresses and interference is analyzed; then, comprehensively considering the assembly pressing force, speed and temperature, the rotor strength\u2019s design method with high structural stability is proposed. Finally, based on the proposed method, the rotor strength of a 100 kW\/30,000 rpm high-speed motor is designed, and the feasibility of the design is verified by over-speed experiment.<\/jats:p>","DOI":"10.3390\/sym13112161","type":"journal-article","created":{"date-parts":[[2021,11,11]],"date-time":"2021-11-11T23:07:21Z","timestamp":1636672041000},"page":"2161","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Study on the Rotor Strength of High-Speed Permanent Magnet Motor Considering the Influence of Assembly Pressing Force"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1795-4209","authenticated-orcid":false,"given":"Yusheng","family":"Hu","sequence":"first","affiliation":[{"name":"School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150006, China"},{"name":"Gree Electric Appliances, Inc. of Zhuhai, Zhuhai 519000, China"},{"name":"Guangdong Provincial Key Laboratory of High-Speed and Energy Conservation Motor System, Zhuhai 519000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liyi","family":"Li","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150006, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6853-6317","authenticated-orcid":false,"given":"Weilin","family":"Guo","sequence":"additional","affiliation":[{"name":"Gree Electric Appliances, Inc. of Zhuhai, Zhuhai 519000, China"},{"name":"Guangdong Provincial Key Laboratory of High-Speed and Energy Conservation Motor System, Zhuhai 519000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7464-9150","authenticated-orcid":false,"given":"Shanshan","family":"Wang","sequence":"additional","affiliation":[{"name":"Gree Electric Appliances, Inc. of Zhuhai, Zhuhai 519000, China"},{"name":"Guangdong Provincial Key Laboratory of High-Speed and Energy Conservation Motor System, Zhuhai 519000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"979","DOI":"10.1049\/iet-epa.2017.0686","article-title":"Rotor strength analysis for high-speed segmented surface-mounted permanent magnet synchronous machines","volume":"12","author":"Chen","year":"2018","journal-title":"IET Electr. Power Appl."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Chen, L., and Zhu, C. (2014, January 22\u201325). Rotor Strength Analysis for High Speed Permanent Magnet Machines. Proceedings of the 2014 17th International Conference on Electrical Machines and Systems (ICEMS), Hangzhou, China.","DOI":"10.1109\/ICEMS.2014.7013438"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"481","DOI":"10.4028\/www.scientific.net\/AMR.188.481","article-title":"Design and strength analysis of ultra-high speed permanent magnet DC rotor","volume":"188","author":"Xiao","year":"2011","journal-title":"Adv. Mater. Res."},{"key":"ref_4","first-page":"278","article-title":"Multiphysics analysis of high-speed permanent magnet generators for waste heat application","volume":"7","author":"Du","year":"2017","journal-title":"IET Electr. Syst. Transport."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1007\/s12541-013-0066-2","article-title":"Development of an ultra high speed permanent magnet synchronous motor","volume":"14","author":"Hong","year":"2013","journal-title":"Int. J. Precis. Eng. Manuf."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Borisavljevic, A., Polinder, H., and Ferreira, J.A. (2010, January 21\u201324). Enclosure design for a high-speed permanent magnet rotor. Proceedings of the IET International Conference on Power Electronics, Machines and Drives, Brighton, UK.","DOI":"10.1049\/cp.2010.0141"},{"key":"ref_7","unstructured":"Zwyssig, C., and Kolar, J.W. (2005, January 2\u20136). Design of a 100W, 500000rpm Permanent-Magnet Generator for Mesoscale Gas Turbines. Proceedings of the IEEE-IAS, Hong Kong, China."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"652","DOI":"10.1016\/j.aasri.2012.11.104","article-title":"Strength Analysis of Enclosure for a High-Speed Permanent Magnet Rotor","volume":"3","author":"Zhou","year":"2012","journal-title":"AASRI Procedia"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2766","DOI":"10.1109\/TIE.2016.2518121","article-title":"Multi-Physics Design and Optimization of High Speed Permanent Magnet Electrical Machines for Air Blower Applications","volume":"63","author":"Huang","year":"2016","journal-title":"IEEE Trans. Ind. Electron."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"3411","DOI":"10.1109\/TIA.2017.2684090","article-title":"Rotor Design for High Speed High-Power Permanent-Magnet Synchronous Machines","volume":"53","author":"Fang","year":"2017","journal-title":"IEEE Trans. Ind. Appl."}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/13\/11\/2161\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:28:32Z","timestamp":1760167712000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/13\/11\/2161"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,11,11]]},"references-count":10,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2021,11]]}},"alternative-id":["sym13112161"],"URL":"https:\/\/doi.org\/10.3390\/sym13112161","relation":{},"ISSN":["2073-8994"],"issn-type":[{"type":"electronic","value":"2073-8994"}],"subject":[],"published":{"date-parts":[[2021,11,11]]}}}