Experimental Study on Low Speed Lubrication Characteristics of Large Tilting Pad Bearings

Experimental Study on Low Speed Lubrication Characteristics of Large Tilting Pad Bearings | 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 Experimental Study on Low Speed Lubrication Characteristics of Large Tilting Pad Bearings Peiji Yang, sun quan, Runlin Chen, Zhiming Zhao, Bing Yao, Kai Pang, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4203776/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 10 Aug, 2024 Read the published version in Journal of the Brazilian Society of Mechanical Sciences and Engineering → Version 1 posted 4 You are reading this latest preprint version Abstract Abstract：For large generator sets, during low-speed operation such as start-stop or low-speed driving, there may be instances where hydrodynamic lubrication can’t be established, leading to boundary lubrication between bearing and the shaft. This situation can result in bearing damage and cause safety incidents. Therefore, it is necessary to study the lubrication characteristics of bearings under low-speed operation. In this paper, the lubrication properties of the unevenly distributed six-pad tilting pad bearings in an in-service unit are analyzed through theoretical calculations. The analysis focuses on parameters such as film thickness and temperature of the bearing pads under low-speed operating conditions. A full-size test bench is set up to examine the lubrication properties of bearings made of two materials - Babbitt alloy and fluoroplastic, and the pads temperatures, film thicknesses, and vibration characteristics of the bearings are tested under actual operating conditions. The test results show that: the 6-pad small wrap angle bearings designed do not have tile burning phenomenon under low-speed working condition (40r/min), the bearing made of fluoroplastic material has lower temperatures compared to those made of Babbitt alloy, with higher pivot film thickness than that of the Babbitt alloy; The bearing pivot film thickness value using VG68 oil is larger than that of VG46, and the values of the temperature of the pad measurement point are larger than that of VG46.This research paper validates the feasibility of the bearing design scheme for this unit and provides data support for the design and safe operation of similar units. Tilting pad bearings low speed operation Babbitt alloys fluoroplastic Full Text Cite Share Download PDF Status: Published Journal Publication published 10 Aug, 2024 Read the published version in Journal of the Brazilian Society of Mechanical Sciences and Engineering → Version 1 posted Reviewers agreed at journal 21 Apr, 2024 Reviewers invited by journal 21 Apr, 2024 Editor assigned by journal 10 Apr, 2024 First submitted to journal 01 Apr, 2024 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. 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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-4203776","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":293715336,"identity":"fd24bb21-1292-4c16-85c6-849f8a299d35","order_by":0,"name":"Peiji Yang","email":"","orcid":"","institution":"Shaanxi University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Peiji","middleName":"","lastName":"Yang","suffix":""},{"id":293715337,"identity":"f0356397-fdad-4893-9fa4-c62265d0f21f","order_by":1,"name":"sun 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