{"id":17851,"date":"2024-08-16T07:50:48","date_gmt":"2024-08-16T07:50:48","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=17851"},"modified":"2024-08-16T07:50:48","modified_gmt":"2024-08-16T07:50:48","slug":"response-and-stability-of-the-remotely-piloted-constrained-x-hale-aircraft-in-wind-tunnel","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/08\/16\/response-and-stability-of-the-remotely-piloted-constrained-x-hale-aircraft-in-wind-tunnel\/","title":{"rendered":"RESPONSE AND STABILITY OF THE REMOTELY-PILOTED, CONSTRAINED X-HALE AIRCRAFT IN WIND TUNNEL"},"content":{"rendered":"\n<p><strong>Ant\u00f4nio B. Guimar\u00e3es Neto, Fl\u00e1vio J. Silvestre, Fl\u00e1vio L. S. Bussamra, Roberto G. A. da Silva, Carlos E. S. Cesnik<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2017-081<\/strong><\/p>\n\n\n\n<p>Formulations for the \ufb02ight dynamics of \ufb02exible aircraft have been commonly applied to aircraft free to \ufb02y in the three-dimensional space, having all six rigid-body degrees of freedom. For risk reduction in the future \ufb02ight operations of the X-HALE testbed at ITA, however, wind-tunnel tests of the remotely-piloted, four-meter-span con\ufb01guration of the aircraft were performed. In the wind tunnel, the rigid-body translations were completely constrained, but the same was not valid for the rigid-body rotations, which could be conveniently left free or not with a proper selection of the connection between the aircraft and the wind-tunnel mount. In the present paper, in order to computationally assess the response and stability characteristics of the aircraft in the wind tunnel, we derive equations of motion for a constrained \ufb02exible aircraft with up to three rigid-body rotational degrees of freedom, mounted on an also \ufb02exible wind-tunnel strut. The numerical model has its value con\ufb01rmed by the wind-tunnel tests in the predicted and observed roll-control reversal for anti-symmetrical de\ufb02ections of the all-moving tails, and absence of reversal for aileron de\ufb02ections.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2024\/08\/IFASD-2017-081.pdf\">Read the full paper here<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Ant\u00f4nio B. Guimar\u00e3es Neto, Fl\u00e1vio J. Silvestre, Fl\u00e1vio L. S. Bussamra, Roberto G. A. da Silva, Carlos E. S. Cesnik<b\/><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2017-081<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1957,1953],"tags":[1972,2105,2104,632],"class_list":["post-17851","post","type-post","status-publish","format-standard","hentry","category-events","category-computational-aeroelasticity","category-ifasd-2017","tag-aeroelasticity","tag-exible-aircraft","tag-ight-dynamics","tag-wind-tunnel","category-993","category-1957","category-1953","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/17851","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=17851"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/17851\/revisions"}],"predecessor-version":[{"id":17853,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/17851\/revisions\/17853"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=17851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=17851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=17851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}