{"id":18971,"date":"2025-02-14T13:01:00","date_gmt":"2025-02-14T13:01:00","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18971"},"modified":"2025-02-14T13:01:00","modified_gmt":"2025-02-14T13:01:00","slug":"surrogate-based-optimization-of-a-morphing-winglet-for-flexible-aircraft","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/02\/14\/surrogate-based-optimization-of-a-morphing-winglet-for-flexible-aircraft\/","title":{"rendered":"SURROGATE BASED OPTIMIZATION OF A MORPHING WINGLET FOR FLEXIBLE AIRCRAFT"},"content":{"rendered":"\n<p><strong>Martin Delavenne, Bernard Barriety, Fabio Vetrano, Valerie Ferrand, Michel Salaun<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2019-098<\/strong><\/p>\n\n\n\n<p>Since the pioneering work by Whitcomb [1] in the mid-70\u2019s winglets have demonstrated their capabilities to improve aircraft ef\ufb01ciency. However, they are \ufb01xed devices and optimized for certain \ufb02ight conditions. This paper investigates the opportunity to make these wing extensions active to control aircraft performances along the \ufb02ight. To assess the ef\ufb01ciency of such a technology, high-\ufb01delity computations coupling aerodynamics and structural mechanics disciplines are used. Surrogate models are built to speed-up the optimization process. Multiobjective and gradient-free algorithms are used to search the optimal winglet shape in cruise condition and the optimal winglet de\ufb02ection along the mission with block fuel minimization as objective. The capability of active winglets to control the wing shape and particularly the twist is demonstrated. It is also highlighted that the wing \ufb02exibility is a key driver of the ef\ufb01ciency of active winglets and must be considered to assess the performances of morphing devices. This document shows that depending on the baseline choice the gains can be quadrupled if the stiffness is neglected.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/02\/IFASD-2019-098.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Martin Delavenne, Bernard Barriety, Fabio Vetrano, Valerie Ferrand, Michel Salaun<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2019-098<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2435,2433],"tags":[2939,2740,2940,2469,2941],"class_list":["post-18971","post","type-post","status-publish","format-standard","hentry","category-aeroelastic-design-applications","category-1-ifasd-2019","tag-active-winglet","tag-cfd-csm-2","tag-multidisciplinary-optimization-2","tag-static-aeroelasticity","tag-surrogate-models","category-2435","category-2433","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18971","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=18971"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18971\/revisions"}],"predecessor-version":[{"id":18973,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18971\/revisions\/18973"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}