{"paper_id":"427d1aa2-ea50-4621-8155-07ffc0fbb04e","body_text":"The Effects of Microburst Nonlinear Varying Loads on Aircraft Using a Multi-Point Approach | 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 The Effects of Microburst Nonlinear Varying Loads on Aircraft Using a Multi-Point Approach Ali Pourmoradi, Mehdi Sabzehparvar This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3890307/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 Microburst is an atmospheric phenomenon that poses a dangerous and unavoidable threat to flying aircraft during takeoff and landing. The dynamic response of the aircraft encountered to the microburst was studied. Research on the interaction between microburst and aircraft motion is needed to assess the effects of aerodynamic forces and momentum. Unlike recent studies using conventional integrated aerodynamic models, the multi-point loading approach allows microburst nonlinear wind loading at any point on the wing and tail combination. In this method, a general reconstruction of aerodynamic forces and moments is calculated by microburst integration with different non-uniformly distributed loads functions on each surface of the aircraft. This algorithm solves the nonlinear equations of motion of a plane with six degrees of freedom and updates the plane's dynamic parameters as input to calculate time- and space-varying microburst effects for each element. The computational complexity of this method is therefore much reduced compared to CFD analysis and at the same time the details of the flight characteristics are taken into account without simplification in the simulation, which takes about 90 seconds of simulation time. We simulate and compare the results of a new and existing micro-race modeling approach. Comparing the two models shows significant differences in flight conditions such as aircraft flight path, angle of attack and angular velocity. Microburst Varying loads Nonlinear equations Aircraft surfaces Multi-Point model Single-point model 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. 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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-3890307\",\"acceptedTermsAndConditions\":true,\"allowDirectSubmit\":true,\"archivedVersions\":[],\"articleType\":\"Research Article\",\"associatedPublications\":[],\"authors\":[{\"id\":270110492,\"identity\":\"6ce6801c-69b5-4556-a1b9-f5bf66ba7f2f\",\"order_by\":0,\"name\":\"Ali Pourmoradi\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"Amirkabir University of Technology\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Ali\",\"middleName\":\"\",\"lastName\":\"Pourmoradi\",\"suffix\":\"\"},{\"id\":270110493,\"identity\":\"84d2582f-6bf9-45da-bcfd-c19818e5cdcb\",\"order_by\":1,\"name\":\"Mehdi Sabzehparvar\",\"email\":\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAtklEQVRIiWNgGAWjYFACHgYGxgYbGE+CaC1pDAxsJGo5DNNCBJBvP3v4w8cd5+UN7jcwfvjBYJFPUIvBmbwEw5lnbhtuOMbALNnDIGHZQFALQ45BMm/bbUagFgZpoF8MCDus/43B4b9t5+xBtvwmSgvDjRzDZsa2A4lALWzE2WJw410yY29bcvLMY4ltlj0GRDks9/CHn212tn2HDx++8aOijgiHIQBjAyg0RsEoGAWjYBRQAwAAoJA5S6gmwCsAAAAASUVORK5CYII=\",\"orcid\":\"\",\"institution\":\"Amirkabir University of Technology\",\"correspondingAuthor\":true,\"prefix\":\"\",\"firstName\":\"Mehdi\",\"middleName\":\"\",\"lastName\":\"Sabzehparvar\",\"suffix\":\"\"}],\"badges\":[],\"createdAt\":\"2024-01-23 07:41:55\",\"currentVersionCode\":1,\"declarations\":\"\",\"doi\":\"10.21203/rs.3.rs-3890307/v1\",\"doiUrl\":\"https://doi.org/10.21203/rs.3.rs-3890307/v1\",\"draftVersion\":[],\"editorialEvents\":[],\"editorialNote\":\"\",\"failedWorkflow\":false,\"files\":[],\"financialInterests\":\"No competing interests reported.\",\"formattedTitle\":\"The Effects of Microburst Nonlinear Varying Loads on Aircraft Using a Multi-Point Approach\",\"fulltext\":[],\"fulltextSource\":\"\",\"fullText\":\"\",\"funders\":[],\"hasAdminPriorityOnWorkflow\":false,\"hasManuscriptDocX\":true,\"hasOptedInToPreprint\":true,\"hasPassedJournalQc\":\"\",\"hasAnyPriority\":false,\"hideJournal\":true,\"highlight\":\"\",\"institution\":\"\",\"isAcceptedByJournal\":false,\"isAuthorSuppliedPdf\":false,\"isDeskRejected\":\"\",\"isHiddenFromSearch\":false,\"isInQc\":false,\"isInWorkflow\":false,\"isPdf\":true,\"isPdfUpToDate\":true,\"isWithdrawnOrRetracted\":false,\"journal\":{\"display\":true,\"email\":\"info@researchsquare.com\",\"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\":\"Microburst, Varying loads, Nonlinear equations, Aircraft surfaces, Multi-Point model, Single-point model\",\"lastPublishedDoi\":\"10.21203/rs.3.rs-3890307/v1\",\"lastPublishedDoiUrl\":\"https://doi.org/10.21203/rs.3.rs-3890307/v1\",\"license\":{\"name\":\"CC BY 4.0\",\"url\":\"https://creativecommons.org/licenses/by/4.0/\"},\"manuscriptAbstract\":\"\\u003cp\\u003eMicroburst is an atmospheric phenomenon that poses a dangerous and unavoidable threat to flying aircraft during takeoff and landing. 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