Structural Optimization Applied to Submarine Pressure Hulls

Structural Optimization Applied to Submarine Pressure Hulls | 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 Structural Optimization Applied to Submarine Pressure Hulls Thiago Kenji Leao Shinoka, Theodoro Antoun Netto This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5363785/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 04 Jan, 2025 Read the published version in Journal of Ocean Engineering and Marine Energy → Version 1 posted 9 You are reading this latest preprint version Abstract Submarine pressure hulls are designed in such a way that the total buoyancy is balanced by the total weight to maintain a specific desired water depth. Structural efficiency is, therefore, translated directly into a better payload and deeper operational range. This paper presents a study of the effectiveness of three optimization tools for the problem of minimizing the weight of pressure hulls: Differential Evolution (DE), Particle Swarm (PS) and Simulated Annealing (SA). Their convergence rate and final resulting structure were compared using an analytical model. The influence of the primary dimensions, design pressure and variations in the partial safety factors are also factored into the evaluation of the optimization tools. Once optimal structures according to different partial safety factors are attained, these are verified with Finite Elements Analysis (FEA) models considering an initial imperfection and with hydrostatic external pressure applied using the path-following Riks method. The results of this study indicate that the DE is the most effective method for the proposed problem among the tools evaluated and that the implementation of optimization tools in early design stages could potentially reduce the weight and improve the payload of submarines. Structural Optimization Pressure Hull Collapse Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 04 Jan, 2025 Read the published version in Journal of Ocean Engineering and Marine Energy → Version 1 posted Editorial decision: Revision requested 02 Dec, 2024 Reviews received at journal 01 Dec, 2024 Reviews received at journal 10 Nov, 2024 Reviewers agreed at journal 09 Nov, 2024 Reviewers agreed at journal 09 Nov, 2024 Reviewers invited by journal 07 Nov, 2024 Editor assigned by journal 04 Nov, 2024 Submission checks completed at journal 04 Nov, 2024 First submitted to journal 30 Oct, 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. 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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-5363785","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":376272399,"identity":"185a77e3-ada2-40b0-90ee-59d251edfe61","order_by":0,"name":"Thiago Kenji Leao Shinoka","email":"","orcid":"","institution":"COPPE - Universidade Federal do Rio de Janeiro","correspondingAuthor":false,"prefix":"","firstName":"Thiago","middleName":"Kenji Leao","lastName":"Shinoka","suffix":""},{"id":376272400,"identity":"69b9558a-6674-4983-a2af-ffe35fb38db5","order_by":1,"name":"Theodoro Antoun Netto","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABA0lEQVRIiWNgGAWjYBADOT5k3gcGHoYEXEp5QMSBBAZjNjaEIOMMYrQktqFqYcCtxZ797MHHH3/YpLfJtz9g+FFxJ4+fgcewuUKGIc+8AYctPHnJBgcS0nLb2HgMGHvOPCuWbOAxbDzDw1AscwCXw3LMJA4kHAZpYWBmbDucuOEAj/nDBh6GxBm4/ML/xvwHUEs6Gxv7A7CW/QeAtuDVIpFjBvT+4QRgiBlAbGEgpOXGG2OJM2lphm1sOQYHQX6ROMxWCNQiUSyBQwt7f47hhwobG3l+5uMPH4BDrL15Y2Njj00eLi0o4AA4ipiBLMYeojRAdCVA6B9E6xgFo2AUjILhDwACelaePtJRJAAAAABJRU5ErkJggg==","orcid":"","institution":"COPPE - Universidade Federal do Rio de Janeiro","correspondingAuthor":true,"prefix":"","firstName":"Theodoro","middleName":"Antoun","lastName":"Netto","suffix":""}],"badges":[],"createdAt":"2024-10-31 00:08:12","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5363785/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5363785/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s40722-024-00376-4","type":"published","date":"2025-01-04T15:57:24+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":73093327,"identity":"3dc562e4-b5d4-4b4e-8ea4-91a6ba653e93","added_by":"auto","created_at":"2025-01-06 16:13:46","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":659944,"visible":true,"origin":"","legend":"","description":"","filename":"StructuralOptimizationAppliedtoSubmarinePressureHulls.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5363785/v1_covered_6118867c-821d-4d75-9e57-3457ab40ce56.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Structural Optimization Applied to Submarine Pressure Hulls","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"journal-of-ocean-engineering-and-marine-energy","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"oeme","sideBox":"Learn more about [Journal of Ocean Engineering and Marine Energy](http://link.springer.com/journal/40722)","snPcode":"40722","submissionUrl":"https://submission.nature.com/new-submission/40722/3","title":"Journal of Ocean Engineering and Marine Energy","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Structural Optimization, Pressure Hull, Collapse","lastPublishedDoi":"10.21203/rs.3.rs-5363785/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5363785/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Submarine pressure hulls are designed in such a way that the total buoyancy is balanced by the total weight to maintain a specific desired water depth. 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