{"id":18823,"date":"2025-02-07T13:33:16","date_gmt":"2025-02-07T13:33:16","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18823"},"modified":"2025-02-07T13:33:17","modified_gmt":"2025-02-07T13:33:17","slug":"structural-dynamics-assessment-on-a-full-electric-aircraft-ground-vibration-testing-and-in-flight-measurements","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/02\/07\/structural-dynamics-assessment-on-a-full-electric-aircraft-ground-vibration-testing-and-in-flight-measurements\/","title":{"rendered":"STRUCTURAL DYNAMICS ASSESSMENT ON A FULL-ELECTRIC AIRCRAFT: GROUND VIBRATION TESTING AND IN-FLIGHT MEASUREMENTS"},"content":{"rendered":"\n<p><strong>E. Di Lorenzo, U. Musella, S. Vettori, R. Hallez, J. Debille, B. Peeters, W. Flynn, P.Z. Csurcsia<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2019-037<\/strong><\/p>\n\n\n\n<p>Aircraft electri\ufb01cation is going to radically change the air transportation in the future. Being a new technology, it is very important to assess the vibroacoustic behavior of an electric aircraft in order to provide useful information to the design and manufacturing teams on the end-products acoustic and dynamic performances. In this paper an assessment based on the structural dynamics characteristics has been carried out both on the ground and in-\ufb02ight on the Magnus eFusion, \ufb01rst all-electric aerobatic training airplane in the world. Both challenges and \ufb01ndings related to lightweight aircrafts Ground Vibration Testing (GVT) and in-\ufb02ight measurements for \ufb02utter analysis are discussed. The GVT, required for \ufb02utter prediction analysis and Finite Element model update, is typically scheduled very late in the development process, right before the \ufb01nal painting and the maiden \ufb02ight, in a short time window with the aircraft readyto-\ufb02y: high quality and representative frequency response functions are compulsory and testing time is a constraint. This paper describes a GVT campaign carried out at the Magnus facilities in Hungary where several innovative processing techniques and control algorithms have been used for obtaining the experimental modal model of the full aircraft. Special focus has been given to novel processing techniques with the additional target to identify potential structural nonlinearities by the mean of tailored excitation signals. The results from the GVT campaign have been then used to prepare the in-\ufb02ight tests. In-\ufb02ight vibration measurements have been performed with a reduced number of sensors for various \ufb02ight conditions in order to assess the risk to enter into aerodynamic \ufb02utter. Finally the comparison between GVT mode shapes and in-\ufb02ight ones has been performed.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/02\/IFASD-2019-037.pdf\">Read the full paper here<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>E. Di Lorenzo, U. Musella, S. Vettori, R. Hallez, J. Debille, B. Peeters, W. Flynn, P.Z. Csurcsia<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2019-037<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2447,2433],"tags":[2847,975,2172,2848],"class_list":["post-18823","post","type-post","status-publish","format-standard","hentry","category-ground-vibration-testing","category-1-ifasd-2019","tag-electric-aircraft","tag-flutter","tag-ground-vibration-testing","tag-virtual-driving-point","category-2447","category-2433","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18823","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=18823"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18823\/revisions"}],"predecessor-version":[{"id":18825,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18823\/revisions\/18825"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}