Investigation on the Vibration Induced by Rotary Shaft Seal Condition in a Centrifugal Pump

Investigation on the Vibration Induced by Rotary Shaft Seal Condition in a Centrifugal Pump | 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 Article Investigation on the Vibration Induced by Rotary Shaft Seal Condition in a Centrifugal Pump Jiamin Zou, Yuejiang Han, Yakun Fan, Yin Luo, Chao Wang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4601540/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 When the centrifugal pump is working, if its rotary shaft seal suffers from wear, deformation, thermal cracking and other failures, it will have adverse effects on the system. Employing theoretical and experimental analysis approaches, this study investigates the vibration properties of centrifugal pumps under various states of rotary shaft seals. The aim is to discern rotary shaft seal faults and assess the operational status of the centrifugal pump system. The vibration signal is collected, and the EMD-AR spectrum of the vibration signal is drawn through normalization, window function, anti-aliasing filter, EMD , and AR model establishment. The findings indicate a reduction in both the head and efficiency of the centrifugal pump as the rotary shaft seal experiences failure. The head is notably more affected by this occurrence; To ensure minimal vibration and enhanced stability, it is advisable for centrifugal pumps to operate at design conditions or slightly higher flow rates, avoiding operation at low flow rates; Additionally, the amplitude of the EMD-AR spectrum in the vibration signal progressively increases with the intensification of rotary shaft seal failure. Consequently, the EMD-AR spectrum serves as a reliable indicator for diagnosing damage to the rotary shaft rotary shaft seal. Physical sciences/Engineering Physical sciences/Engineering/Mechanical engineering Centrifugal pump Rotary shaft seal Vibration EMD-AR spectrum Experiment research Failure analysis Full Text Additional Declarations No competing interests reported. Supplementary Files Supplementaryfile.docx 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-4601540","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":323678734,"identity":"0a29641f-1335-4c5b-8548-88d5c4bfd55d","order_by":0,"name":"Jiamin Zou","email":"","orcid":"","institution":"Jiangsu university","correspondingAuthor":false,"prefix":"","firstName":"Jiamin","middleName":"","lastName":"Zou","suffix":""},{"id":323678738,"identity":"92238c61-bb8c-4d57-b050-70cfadd528fc","order_by":1,"name":"Yuejiang Han","email":"","orcid":"","institution":"Jiangsu 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analysis","lastPublishedDoi":"10.21203/rs.3.rs-4601540/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4601540/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eWhen the centrifugal pump is working, if its rotary shaft seal suffers from wear, deformation, thermal cracking and other failures, it will have adverse effects on the system. Employing theoretical and experimental analysis approaches, this study investigates the vibration properties of centrifugal pumps under various states of rotary shaft seals. The aim is to discern rotary shaft seal faults and assess the operational status of the centrifugal pump system. The vibration signal is collected, and the \u003cem\u003eEMD-AR\u003c/em\u003e spectrum of the vibration signal is drawn through normalization, window function, anti-aliasing filter, \u003cem\u003eEMD\u003c/em\u003e, and \u003cem\u003eAR\u003c/em\u003e model establishment. The findings indicate a reduction in both the head and efficiency of the centrifugal pump as the rotary shaft seal experiences failure. The head is notably more affected by this occurrence; To ensure minimal vibration and enhanced stability, it is advisable for centrifugal pumps to operate at design conditions or slightly higher flow rates, avoiding operation at low flow rates; Additionally, the amplitude of the \u003cem\u003eEMD-AR\u003c/em\u003e spectrum in the vibration signal progressively increases with the intensification of rotary shaft seal failure. Consequently, the \u003cem\u003eEMD-AR\u003c/em\u003e spectrum serves as a reliable indicator for diagnosing damage to the rotary shaft rotary shaft seal.\u003c/p\u003e","manuscriptTitle":"Investigation on the Vibration Induced by Rotary Shaft Seal Condition in a Centrifugal Pump","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-07-09 18:24:28","doi":"10.21203/rs.3.rs-4601540/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","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}}],"origin":"","ownerIdentity":"b379edf6-a9bb-4456-a167-bb3b08bafe13","owner":[],"postedDate":"July 9th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":34228704,"name":"Physical sciences/Engineering"},{"id":34228705,"name":"Physical sciences/Engineering/Mechanical engineering"}],"tags":[],"updatedAt":"2025-06-17T16:08:50+00:00","versionOfRecord":[],"versionCreatedAt":"2024-07-09 18:24:28","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4601540","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4601540","identity":"rs-4601540","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}