Influence of gear tooth surface wear on nonlinear dynamics of aviation planetary gearbox

Influence of gear tooth surface wear on nonlinear dynamics of aviation planetary gearbox | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Influence of gear tooth surface wear on nonlinear dynamics of aviation planetary gearbox Lan Luo, Kangkang Cui, Haofeng Jiao, Jiamin Lu, Fei Zhao, Yongqiao Wei This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5395264/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Aerospace planetary gearboxes undergo wear on the gear tooth backlash after prolonged service cycles. Tooth wear leads to alterations in the gear's backlash and friction force. These factors can result in abnormal vibrations of the planetary gearbox, along with an increase in rotational speed, potentially causing damage to the aerospace electromechanical actuator in which it is installed. To investigate the nonlinear vibration mechanism induced by rotational speed at various wear levels, a torsional dynamics model of a single-row planetary gear system is developed. The tooth friction model and dynamic tooth backlash model are integrated into the torsional dynamics model. Subsequently, the effects of wear level and rotational speed on the vibration characteristics of the planetary gear system are analyzed. The findings indicate that at different wear levels, the system response transitions through quasi-periodic 4 motion - quasi-periodic 2 motion - quasi-periodic motion - chaotic motion. Planetary gear Wear Dynamic backlash Tooth friction Vibration characteristics Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5395264","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":374563367,"identity":"d94e099b-16be-4c55-99a6-ea3dd27d4845","order_by":0,"name":"Lan Luo","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA10lEQVRIiWNgGAWjYJACCYYCBgY+BgbGBwkVNUSoZwNpMQDTzAYPzhwjTQub5MMWZsI65Of3GN7mMTgsx8Z+9lhFYgMbA397dwJeLQbHeIytgVqM2Xjy0m4k7pBhkDhzdgN+LWw8ZtJALYltDDlmNxLPsDEYSOTi1yLfBtPC/8asILGNmbAWhmMwLRI5ZgxEaTE4llZsOccg3ZhN4o2xRMKZYzwE/SLffHjjjTcV1nL8/DmGH39U1Mjxt/cScBgQMPEgcXhwKkMGjD+IUjYKRsEoGAUjFgAAYp4/ZxYPCAEAAAAASUVORK5CYII=","orcid":"","institution":"Lanzhou University of Technology","correspondingAuthor":true,"prefix":"","firstName":"Lan","middleName":"","lastName":"Luo","suffix":""},{"id":374563370,"identity":"66bb6fc8-91d3-438e-8506-583c86691f46","order_by":1,"name":"Kangkang Cui","email":"","orcid":"","institution":"Lanzhou University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Kangkang","middleName":"","lastName":"Cui","suffix":""},{"id":374563373,"identity":"03654a51-03f4-4fad-8b40-855f7e000fa8","order_by":2,"name":"Haofeng Jiao","email":"","orcid":"","institution":"Lanzhou University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Haofeng","middleName":"","lastName":"Jiao","suffix":""},{"id":374563374,"identity":"394db299-66ee-455b-80ae-8a5cd3fbb1e5","order_by":3,"name":"Jiamin Lu","email":"","orcid":"","institution":"Lanzhou University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Jiamin","middleName":"","lastName":"Lu","suffix":""},{"id":374563376,"identity":"4c3fee42-44d5-4fe2-88f4-5ff4dc208e17","order_by":4,"name":"Fei Zhao","email":"","orcid":"","institution":"Southwest University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Fei","middleName":"","lastName":"Zhao","suffix":""},{"id":374563377,"identity":"f2d499ad-0e47-47d4-9063-a975796c5f6b","order_by":5,"name":"Yongqiao Wei","email":"","orcid":"","institution":"Lanzhou University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Yongqiao","middleName":"","lastName":"Wei","suffix":""}],"badges":[],"createdAt":"2024-11-05 12:08:31","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5395264/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5395264/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":80302395,"identity":"1f13adbc-df18-47a4-ae31-c461ad863940","added_by":"auto","created_at":"2025-04-10 09:32:21","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1955886,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript2.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5395264/v1_covered_088e98c9-56a8-48d5-98eb-05ad5d403003.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Influence of gear tooth surface wear on nonlinear dynamics of aviation planetary gearbox","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Planetary gear, Wear, Dynamic backlash, Tooth friction, Vibration characteristics","lastPublishedDoi":"10.21203/rs.3.rs-5395264/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5395264/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAerospace planetary gearboxes undergo wear on the gear tooth backlash after prolonged service cycles. Tooth wear leads to alterations in the gear's backlash and friction force. These factors can result in abnormal vibrations of the planetary gearbox, along with an increase in rotational speed, potentially causing damage to the aerospace electromechanical actuator in which it is installed. To investigate the nonlinear vibration mechanism induced by rotational speed at various wear levels, a torsional dynamics model of a single-row planetary gear system is developed. The tooth friction model and dynamic tooth backlash model are integrated into the torsional dynamics model. Subsequently, the effects of wear level and rotational speed on the vibration characteristics of the planetary gear system are analyzed. 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