Multibody Dynamic and Aerodynamic Modeling of a Tube-Launched Sweep Morphing Unmanned Aerial System

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Abstract Recently, tube-launched unmanned aerial systems (UAS) with sweep morphing lifting surfaces have grown in popularity. Such systems exhibit strong coupling between the structural dynamics, aerodynamics and flight dynamics due to its multibody dynamics. In existing literature, mid-fidelity aerodynamic models coupled to free-flight multibody dynamic models are spare. Thus, an unsteady panel method is coupled with a multibody model, to quantify the strength of the interaction. First, the aerodynamic model is compared to an unsteady Reynoldsaveraged Navier Stokes simulation, establishing its suitability to model such UASs. Then, the coupled model is applied to a free-flight simulation. The relative motion of its own lifting surfaces induces a change in pitch angle of several degrees. Furthermore, the angle of attack may vary by several degrees during the deployment, stressing the need to include the flight dynamic motion in the modeling of such system.
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Multibody Dynamic and Aerodynamic Modeling of a Tube-Launched Sweep Morphing Unmanned Aerial System | 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 Multibody Dynamic and Aerodynamic Modeling of a Tube-Launched Sweep Morphing Unmanned Aerial System Samuel Johannes van Elsloo, Michel van Rooij, Ash Hamraz, Roeland De Breuker, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6170299/v2 This work is licensed under a CC BY 4.0 License Status: Posted Version 2 posted You are reading this latest preprint version Show more versions Abstract Recently, tube-launched unmanned aerial systems (UAS) with sweep morphing lifting surfaces have grown in popularity. Such systems exhibit strong coupling between the structural dynamics, aerodynamics and flight dynamics due to its multibody dynamics. In existing literature, mid-fidelity aerodynamic models coupled to free-flight multibody dynamic models are spare. Thus, an unsteady panel method is coupled with a multibody model, to quantify the strength of the interaction. First, the aerodynamic model is compared to an unsteady Reynoldsaveraged Navier Stokes simulation, establishing its suitability to model such UASs. Then, the coupled model is applied to a free-flight simulation. The relative motion of its own lifting surfaces induces a change in pitch angle of several degrees. Furthermore, the angle of attack may vary by several degrees during the deployment, stressing the need to include the flight dynamic motion in the modeling of such system. Aeronautics and Astronautics Morphing Aircraft Sweep Morphing Unmanned Aerial Vehicle UAV Dynamic Modeling Coupled Flight Dynamics and Aerodynamics Full Text Additional Declarations The authors declare no competing interests. Cite Share Download PDF Status: Posted Version 2 posted You are reading this latest preprint version Show more versions 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-6170299","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":436598439,"identity":"f377b480-020e-4995-acd8-b4b83c63a426","order_by":0,"name":"Samuel Johannes van 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