{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T14:11:20Z","timestamp":1776348680821,"version":"3.51.2"},"reference-count":35,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,7,17]],"date-time":"2024-07-17T00:00:00Z","timestamp":1721174400000},"content-version":"vor","delay-in-days":198,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100018537","name":"National Science and Technology Major Project","doi-asserted-by":"publisher","award":["J2019-I-0012"],"award-info":[{"award-number":["J2019-I-0012"]}],"id":[{"id":"10.13039\/501100018537","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Complexity"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:p>Taking the marine gas turbine as a research background, a dual\u2010rotor\u2010bearing\u2010casing system model was established considering the bearing nonlinearities and unbalanced excitation. Based on Lagrange\u2019s equation of motion and rotor dynamics theory, the effects of key parameters such as radial clearance of intershaft bearing, rotor mass eccentricity, and rotational speed on the nonlinear characteristics of the system are investigated. The results indicate that the typical parameters have a significant effect on the system\u2019s nonlinearities. To alleviate the vibration jump phenomenon, the radial clearance should be reduced to improve the coupling between the high\u2010 and low\u2010pressure rotors. Reducing the mass eccentricity can effectively degrade the resonance peaks, but it will highlight the hard resonance characteristics. The work process should pass through the resonant\u2010speed regions and the low\u2010speed regions of start\u2010stop phase as soon as possible. The research findings contribute to understanding the nonlinear dynamic characteristics of dual\u2010rotor systems, providing a theoretical basis for their stable operation and the optimal design of working speeds.<\/jats:p>","DOI":"10.1155\/2024\/8747551","type":"journal-article","created":{"date-parts":[[2024,7,17]],"date-time":"2024-07-17T08:34:21Z","timestamp":1721205261000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Nonlinear Dynamic Analysis on Dual\u2010Rotor\u2010Bearing\u2010Casing System for Marine Gas Turbine"],"prefix":"10.1155","volume":"2024","author":[{"given":"Zhikai","family":"Xing","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0009-0004-7651-2085","authenticated-orcid":false,"given":"Qiang","family":"Wang","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4132-2383","authenticated-orcid":false,"given":"Yongbao","family":"Liu","sequence":"additional","affiliation":[]},{"given":"Mo","family":"Li","sequence":"additional","affiliation":[]},{"given":"Xin","family":"Zhang","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2024,7,17]]},"reference":[{"key":"e_1_2_10_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.apm.2023.06.016"},{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00419-017-1299-9"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.21595\/jve.2022.22585"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00419-018-01501-0"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijnonlinmec.2020.103627"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11071-021-06370-x"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijmecsci.2021.106861"},{"key":"e_1_2_10_8_2","doi-asserted-by":"publisher","DOI":"10.13224\/j.cnki.jasp.2016.11.029"},{"key":"e_1_2_10_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymssp.2021.108475"},{"key":"e_1_2_10_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijnonlinmec.2021.103901"},{"key":"e_1_2_10_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cja.2020.10.031"},{"key":"e_1_2_10_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymssp.2011.07.021"},{"key":"e_1_2_10_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12206-015-1116-8"},{"key":"e_1_2_10_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsv.2015.08.027"},{"key":"e_1_2_10_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00419-018-1373-y"},{"key":"e_1_2_10_16_2","doi-asserted-by":"publisher","DOI":"10.13675\/j.cnki.tjjs.2015.05.017"},{"key":"e_1_2_10_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymssp.2018.08.029"},{"key":"e_1_2_10_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsv.2008.06.019"},{"key":"e_1_2_10_19_2","doi-asserted-by":"crossref","unstructured":"ZhangW. 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