Numerical Whirl-Flutter Investigation of a Multibody/Vortex Particle Tiltrotor Model with Frictional Components

Numerical Whirl-Flutter Investigation of a Multibody/Vortex Particle Tiltrotor Model with Frictional Components | 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 Numerical Whirl-Flutter Investigation of a Multibody/Vortex Particle Tiltrotor Model with Frictional Components Paolo De Vita, Gianni Cassoni, Marco Morandini, Pierangelo Masarati, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6511107/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 This work presents modeling improvements in a multibody model of a tiltrotor wind-tunnel testbed recently tested within the Horizon 2020 project ATTILA. Experimental results revealed discrepancies with conventional aeroelastic predictions, attributed to unmodeled aerodynamic interactions and unexpected friction in certain joints. This paper examines how incorporating these effects into the model improved prediction accuracy. Aeronautics and Astronautics Mechanical Engineering Tiltrotor Whirl-Flutter Fluid-Structure Interaction Friction Full Text Additional Declarations The authors declare no competing interests. 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. 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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-6511107","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":446818857,"identity":"27e381b2-4c63-4a9a-9b47-5461281cd84f","order_by":0,"name":"Paolo De Vita","email":"","orcid":"","institution":"Politecnico di Milano","correspondingAuthor":false,"prefix":"","firstName":"Paolo","middleName":"","lastName":"De Vita","suffix":""},{"id":446818858,"identity":"92226ba2-eace-4ba9-86a3-0fcc28c76ee4","order_by":1,"name":"Gianni Cassoni","email":"","orcid":"https://orcid.org/0000-0002-8399-1502","institution":"Politecnico di 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