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This paper establishes a two-degree-of-freedom fractional-order maglev train model incorporating electromagnetic nonlinearity, cogging excitation, and distinct time delays in the displacement and velocity feedback channels. An analytical\u2013numerical framework is developed to obtain the primary-resonance responses, stability boundaries, and bifurcation evolution. The results show that the two delay channels play non-equivalent roles in reshaping the resonance branches and stability regions. Under the coupled effects of dual delays and electromagnetic nonlinearity, closed-loop frequency islands, multistable responses, and delay-enhanced chaotic instability are observed. Compared with the delay parameters, the fractional-order parameter has a weaker influence on the global dynamic pattern. These findings reveal the dominant role of delay coupling in the nonlinear evolution of maglev systems and provide guidance for delay compensation and control-parameter tuning.<\/jats:p>","DOI":"10.1063\/5.0335680","type":"journal-article","created":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T12:39:12Z","timestamp":1790339952000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Bifurcation and stability of a fractional-order maglev system with electromagnetic nonlinearity under cogging excitation and dual-delay feedback control"],"prefix":"10.1063","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-5937-5196","authenticated-orcid":false,"given":"Wan-qi","family":"Sun","sequence":"first","affiliation":[{"name":"School of Transportation, Shijiazhuang Tiedao University 1 , Shijiazhuang 050043,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5077-136X","authenticated-orcid":false,"given":"Mei-qi","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Shijiazhuang Tiedao University 2 , Shijiazhuang 050043,","place":["China"]},{"name":"State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University 3 , Shijiazhuang 050043,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peng-fei","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Shijiazhuang Tiedao University 2 , Shijiazhuang 050043,","place":["China"]},{"name":"State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University 3 , Shijiazhuang 050043,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui-chen","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Shijiazhuang Tiedao University 2 , Shijiazhuang 050043,","place":["China"]},{"name":"State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University 3 , Shijiazhuang 050043,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Liang","sequence":"additional","affiliation":[{"name":"CRRC Qingdao Sifang Co., Ltd. 4 , Qingdao 266111,","place":["China"]},{"name":"State Key Laboratory of High-speed Maglev Transportation Technology 5 , Qingdao 266111,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2026,9,25]]},"reference":[{"key":"2026092508390891600_c1","doi-asserted-by":"publisher","first-page":"119092","DOI":"10.1016\/j.jsv.2025.119092","article-title":"Dynamic and stability analysis of high-speed maglev train\u2013guideway coupled system under crosswind","volume":"609","year":"2025","journal-title":"J. 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