{"id":18097,"date":"2024-08-22T08:41:45","date_gmt":"2024-08-22T08:41:45","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18097"},"modified":"2024-08-22T08:41:45","modified_gmt":"2024-08-22T08:41:45","slug":"a-fem-based-approach-for-nonlinear-aeroelastic-trim-of-highly-flexible-aircraft","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/08\/22\/a-fem-based-approach-for-nonlinear-aeroelastic-trim-of-highly-flexible-aircraft\/","title":{"rendered":"A FEM-BASED APPROACH FOR NONLINEAR AEROELASTIC TRIM OF HIGHLY FLEXIBLE AIRCRAFT"},"content":{"rendered":"\n<p><strong>Cristina Riso, Fausto G. Di Vincenzo, Markus Ritter, Carlos E. S. Cesnik, Franco Mastroddi<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2017-170<\/strong><\/p>\n\n\n\n<p>A novel approach is presented to compute nonlinear aeroelastic trim of highly \ufb02exible aircraft by coupling off-the-shelf solvers for structures and aerodynamics. The methodology includes an inertia relief algorithm for large displacements to perform nonlinear static analysis of unrestrained bodies, which is currently not possible in commercially available \ufb01nite element codes. This feature allows to simulate free-free boundary conditions at each step of the nonlinear aeroelastic trim iterative solution sequence. The proposed approach is implemented by coupling the MSC.Nastran nonlinear structural solver SOL 400 with a three-dimensional vortex lattice method code. Loads and displacements interpolations between aerodynamic and structural grids are performed using MSC.Nastran six degree-of-freedom splines. The computational environment is tested on a beam-type model of the University of Michigan\u2019s X-HALE, a highly \ufb02exible experimental unmanned aerial vehicle for nonlinear aeroelastic \ufb02ight tests. Numerical results are compared with the University of Michigan\u2019s Nonlinear Aeroelastic Simulation Toolbox and with an aeroelastic solver developed at the German Aerospace Center.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2024\/08\/IFASD-2017-170.pdf\">Read the full paper here<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Cristina Riso, Fausto G. Di Vincenzo, Markus Ritter, Carlos E. S. Cesnik, Franco Mastroddi<b\/><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2017-170<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1961,1953],"tags":[2288,1214,2286,2289,2287],"class_list":["post-18097","post","type-post","status-publish","format-standard","hentry","category-events","category-highly-flexible-aircraft-structures","category-ifasd-2017","tag-finite-element-method","tag-fluid-structure-interaction","tag-highly-flexible-aircraft","tag-inertia-relief","tag-nonlinear-aeroelastic-trim","category-993","category-1961","category-1953","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18097","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=18097"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18097\/revisions"}],"predecessor-version":[{"id":18099,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18097\/revisions\/18099"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}