{"id":18874,"date":"2025-02-13T13:48:38","date_gmt":"2025-02-13T13:48:38","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18874"},"modified":"2025-02-13T13:48:38","modified_gmt":"2025-02-13T13:48:38","slug":"whirl-flutter-and-the-development-of-the-nasa-x-57-maxwell","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/02\/13\/whirl-flutter-and-the-development-of-the-nasa-x-57-maxwell\/","title":{"rendered":"WHIRL FLUTTER AND THE DEVELOPMENT OF THE NASA X-57 MAXWELL"},"content":{"rendered":"\n<p><strong>Jennifer Heeg, Bret K. Stanford, Andrew Kreshock, Jinwei Shen, Christian B. Hoover, Roger Truax<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2019-056<\/strong><\/p>\n\n\n\n<p>The X-57 Maxwell is NASA\u2019s all-electric demonstration vehicle. The primary demonstration objective of this \ufb02ight test program is to show a factor of \ufb01ve reduction in energy consumption. The vehicle includes two large wing tip propellers designed to provide propulsion at cruise conditions and twelve leading edge propellers designed to operate at high lift conditions. The \ufb01rst con\ufb01guration of the vehicle that will be \ufb02ight tested has the large wing tip propellers relocated to an inboard wing station. A simpli\ufb01ed structural dynamic model of the propulsion system has been generated and coupled with a beam model of the vehicle. Whirl \ufb02utter analyses have been performed, examining the stability of the isolated propulsion system and coupled to the beam model of the vehicle. Trimmed \ufb02ight scenarios for the vehicle include straight and level \ufb02ight and zero power windmilling conditions. The whirl \ufb02utter analyses for this con\ufb01guration indicate that the con\ufb01guration will be free of whirl \ufb02utter within the required \ufb02ight envelope.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/02\/IFASD-2019-056.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Jennifer Heeg, Bret K. Stanford, Andrew Kreshock, Jinwei Shen, Christian B. Hoover, Roger Truax<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2019-056<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2433,2456],"tags":[2874,2877,2875,2876],"class_list":["post-18874","post","type-post","status-publish","format-standard","hentry","category-1-ifasd-2019","category-whirl-flutte","tag-camrad","tag-dymore","tag-whirl-flutter","tag-x-57-maxwell","category-2433","category-2456","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18874","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=18874"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18874\/revisions"}],"predecessor-version":[{"id":18876,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18874\/revisions\/18876"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}