{"id":13376,"date":"2023-10-13T14:40:05","date_gmt":"2023-10-13T14:40:05","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=13376"},"modified":"2024-05-03T14:43:45","modified_gmt":"2024-05-03T14:43:45","slug":"aerodynamic-damping-and-buffet-response-test-of-an-aeroelastic-launch-vehicle-model-in-transonic-flow","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2023\/10\/13\/aerodynamic-damping-and-buffet-response-test-of-an-aeroelastic-launch-vehicle-model-in-transonic-flow\/","title":{"rendered":"Aerodynamic Damping and Buffet Response Test of an Aeroelastic Launch Vehicle Model in Transonic Flow"},"content":{"rendered":"\n<p><strong>Chen Ji , Ziqiang Liu, Kui Bai, Feng Li<\/strong><\/p>\n\n\n\n<p><strong>DOI Number XXX-YYY-ZZZ<\/strong><\/p>\n\n\n\n<p><strong>Conference Number HiSST 2018_1970864<\/strong><\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The aerodynamic damping and buffet response of a hammerhead launch vehicle were tested at the Mach number of 0.8 to 1.2 and angle of attack of 0\u00b0 and 8\u00b0. The model is aeroelastic scaled with scaled configuration and structural dynamic characteristics. The aerodynamic damping of the model vibrating in the first and second free-free bending mode were measured respectively by exciting the model at the corresponding frequency with an electromagnetic shaker. The aerodynamic undamping was found at the second free-free bending mode at Ma=0.9 and AoA=8\u00b0. The buffet response was measured using strain gage bridge located at the middle of the model with only flow turbulence exciting. Both first and second free-free bending modes were excited by the flow. At different Mach numbers, the variation of the peak value of the free-free bending response power spectral density can be up to 14.4 times. Although the second-order aerodynamic damping was zero at Ma=0.9 and AOA=8\u00b0, it had a limited effect on the second-order dynamic bending response amplitude in this test condition.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/hisst-2018_1970864.pdf\" data-type=\"link\" data-id=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/hisst-2018_1970864.pdf\">Read the full paper &gt; <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Chen Ji , Ziqiang Liu, Kui Bai, Feng Li<\/b><\/p>\n<p>DOI Number XXX-YYY-ZZZ<br \/>\nConference Number HiSST 2018_1970864<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[996,997,994,198,1002],"tags":[681,682,680,434,683,684],"class_list":["post-13376","post","type-post","status-publish","format-standard","hentry","category-high-speed-aerodynamics-and-aerothermodynamics","category-high-speed-missions-and-vehicles","category-hisst-2018","category-hypersonic-aerodynamics","category-testing-and-evaluation","tag-aerodynamic-damping","tag-aeroelastic","tag-buffet-response","tag-hisst-2018","tag-transonic","tag-wind-tunnel-test","category-996","category-997","category-994","category-198","category-1002","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/13376","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=13376"}],"version-history":[{"count":3,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/13376\/revisions"}],"predecessor-version":[{"id":16569,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/13376\/revisions\/16569"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=13376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=13376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=13376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}