{"id":18999,"date":"2025-02-14T14:03:26","date_gmt":"2025-02-14T14:03:26","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18999"},"modified":"2025-02-14T14:03:27","modified_gmt":"2025-02-14T14:03:27","slug":"takeoff-dynamics-of-flexible-aircraft-with-multiple-underwing-pod-mounted-landing-gears","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/02\/14\/takeoff-dynamics-of-flexible-aircraft-with-multiple-underwing-pod-mounted-landing-gears\/","title":{"rendered":"TAKEOFF DYNAMICS OF FLEXIBLE AIRCRAFT WITH MULTIPLE UNDERWING POD-MOUNTED LANDING GEARS"},"content":{"rendered":"\n<p><strong>Antonio B. Guimaraes Neto<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2019-107<\/strong><\/p>\n\n\n\n<p>Formulations for the \ufb02ight dynamics of \ufb02exible aircraft have been commonly applied to aircraft having all six rigid-body degrees of freedom unconstrained. However, during takeoff and landing, the aircraft motion becomes constrained by the ground. An intricate dynamical problem arises when the \ufb02exible aircraft has multiple underwing pod-mounted landing gears. During liftoff, the most outboard landing gears become airborne earlier than the most inboard ones. The equations of motion used in a simulation model must then include timevarying ground constraint forces. Aerodynamically, the ground effect becomes relevant and can be modeled using the method of images. Wheel-to-ground rolling resistance also needs to be considered. This paper aims at the derivation of equations of motion that allow simulating the takeoff of such complex aircraft con\ufb01gurations. The developed formulation is important because it is readily applicable also to the landing phase, allowing the calculation of landing loads and the design of takeoff and landing control systems with less uncertainties. As spinoffs, the stability analysis of \ufb02exible aircraft in ground effect and evaluation of takeoff performance are also made possible.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/02\/IFASD-2019-107.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Antonio B. Guimaraes Neto<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2019-107<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2433,2450],"tags":[1972,2105,2104,2955,2954],"class_list":["post-18999","post","type-post","status-publish","format-standard","hentry","category-1-ifasd-2019","category-modeling-for-design-of-highly-flexible-aircraft","tag-aeroelasticity","tag-exible-aircraft","tag-ight-dynamics","tag-ground-effect","tag-takeoff","category-2433","category-2450","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=18999"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18999\/revisions"}],"predecessor-version":[{"id":19001,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18999\/revisions\/19001"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}