{"id":16213,"date":"2024-04-12T12:34:50","date_gmt":"2024-04-12T12:34:50","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=16213"},"modified":"2024-04-12T12:34:50","modified_gmt":"2024-04-12T12:34:50","slug":"wind-tunnel-based-identification-of-pitch-damping-for-a-flow-through-model-using-a-free-to-tumble-rig","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/04\/12\/wind-tunnel-based-identification-of-pitch-damping-for-a-flow-through-model-using-a-free-to-tumble-rig\/","title":{"rendered":"Wind Tunnel Based Identification of Pitch Damping for a Flow-Through Model Using a Free to Tumble Rig"},"content":{"rendered":"\n<p><strong>Mihai Victor Pricop, C\u0103t\u0103lin P\u00eervu, C\u0103t\u0103lin Nae<\/strong><\/p>\n\n\n\n<p><strong>DOI Number XXX-YYY-ZZZ<\/strong><\/p>\n\n\n\n<p><strong>Conference Number HiSST-2022-281<\/strong><\/p>\n\n\n\n<p>Pitch damping identification in high-speed wind tunnels is achievable with forced vibration rigs working<br>at small amplitudes at high technical complexity and with free to tumble rigs, potentially covering the<br>widest possible range of angles of attack, as a simple and cost-effective alternative. Various aerospace<br>vehicles or reentry debris can be characterized with both techniques. The focus here is on the<br>implementation of a free to tumble rig to be used in the first instance with an interesting space debris,<br>namely a tronconical interstage of a space launcher. Besides the rig and model, a procedure for the<br>identification of the aerodynamic pitch damping coefficient is developed, using the interior point<br>optimization method. The particularity of the wind tunnel model is that it is a flow-through one and<br>therefore it cannot be properly tested on a forced vibration rig, since it requires an adaptor that would<br>obstruct the inner flow, making it irrelevant. An experimental campaign is described, covering regimes<br>from subsonic to supersonic, with the model placed in the horizontal plane as reported in literature, but<br>also in vertical plane, such that the static balancing of the model could be eliminated. Conclusions are<br>presented considering the results, with ideas for improvements.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-281.pdf\" data-type=\"link\" data-id=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-281.pdf\">Read the full paper > <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Mihai Victor Pricop, C\u0103t\u0103lin P\u00eervu, C\u0103t\u0103lin Nae<\/b><\/p>\n<p>DOI Number XXX-YYY-ZZZ<\/p>\n<p>Conference Number HiSST-2022-281<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1006,1014],"tags":[1176,1177,1178,632],"class_list":["post-16213","post","type-post","status-publish","format-standard","hentry","category-events","category-hisst-2022","category-testing-and-evaluation-hisst-2022","tag-aerodynamic-damping-coefficient","tag-free-to-tumble","tag-space-launcher-interstage","tag-wind-tunnel","category-993","category-1006","category-1014","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16213","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=16213"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16213\/revisions"}],"predecessor-version":[{"id":16214,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16213\/revisions\/16214"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=16213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=16213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=16213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}