{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T13:22:02Z","timestamp":1753881722410,"version":"3.41.2"},"reference-count":31,"publisher":"World Scientific Pub Co Pte Ltd","issue":"10","funder":[{"name":"Innovation Project of Guangxi Graduate Education"},{"name":"Open fund for innovation workstation in the National Defense Science and Technology Innovation Special Zone"},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52265004"],"award-info":[{"award-number":["52265004"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Guangxi Science and Technology Major Program","award":["AA23073019"],"award-info":[{"award-number":["AA23073019"]}]},{"name":"Open Research Fund of State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University","award":["Kfkt2023-06"],"award-info":[{"award-number":["Kfkt2023-06"]}]},{"name":"Open Fund of State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology","award":["DMETKF2021017"],"award-info":[{"award-number":["DMETKF2021017"]}]},{"name":"Entrepreneurship and Innovation Talent Program of Taizhou City, Jiangsu Province"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Bifurcation Chaos"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:p> The purpose of this paper is to analyze the dynamic characteristics and the meshing state transition characteristics of spalling defect gears under various lubrication conditions. The time-varying geometric parameters, motion parameters and load distribution of the gears in the state of positive meshing and reverse impact are analyzed. The time-varying meshing stiffness considering the time-varying friction coefficient under elastohydrodynamic lubrication (EHL), mixed lubrication and boundary lubrication are calculated, and the spalling defect is introduced in the stiffness calculation process. The equivalent lubrication model of the gear is established, the switching condition of the lubrication state is derived, and the distribution of the lubrication state in the torque-speed plane is discussed. The multimeshing state dynamic model of the spalling defect gear is established, and the evolution characteristics of the coexistence response and the transition of the meshing state under different lubrication conditions are simulated by using the attraction domain, phase trajectory, meshing force and bifurcation diagram. The results show that the phase trajectory of the gear with the spalling defect is deformed compared with that of the healthy gear. The change of lubrication state has little effect on the phase trajectory and attraction domain of the gear with spalling defect, but has a great influence on the meshing force. At the spalling boundary, the meshing force is changed abruptly, and the worse the lubrication state, the more obvious the mutation. Due to the influence of spalling on tooth stiffness, it will also affect the meshing force in the nonspalling area. <\/jats:p>","DOI":"10.1142\/s0218127424501219","type":"journal-article","created":{"date-parts":[[2024,7,31]],"date-time":"2024-07-31T14:53:30Z","timestamp":1722437610000},"source":"Crossref","is-referenced-by-count":0,"title":["Nonlinear Dynamics and Meshing State Transition Analysis of Spalling Defect Gears with Multi-Lubrication Conditions"],"prefix":"10.1142","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3305-004X","authenticated-orcid":false,"given":"Shuai","family":"Mo","sequence":"first","affiliation":[{"name":"State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, P.\u00a0R.\u00a0China"},{"name":"School of Mechanical Engineering, Guangxi University, Nanning 530004, P.\u00a0R.\u00a0China"},{"name":"Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, P.\u00a0R.\u00a0China"},{"name":"State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P.\u00a0R.\u00a0China"},{"name":"National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.\u00a0R.\u00a0China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8706-512X","authenticated-orcid":false,"given":"Yingxin","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, P.\u00a0R.\u00a0China"},{"name":"School of Mechanical Engineering, Guangxi University, Nanning 530004, P.\u00a0R.\u00a0China"},{"name":"Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, 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