{"id":18856,"date":"2025-02-13T13:17:51","date_gmt":"2025-02-13T13:17:51","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18856"},"modified":"2025-02-13T13:17:52","modified_gmt":"2025-02-13T13:17:52","slug":"whirl-flutter-related-certification-according-to-far-cs-23-and-25-regulation-standards","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/02\/13\/whirl-flutter-related-certification-according-to-far-cs-23-and-25-regulation-standards\/","title":{"rendered":"WHIRL FLUTTER-RELATED CERTIFICATION ACCORDING TO FAR\/CS 23 AND 25 REGULATION STANDARDS"},"content":{"rendered":"\n<p><strong>Ji\u0159\u00ed \u010ce\u010drdle<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2019-049<\/strong><\/p>\n\n\n\n<p>Submitted paper describes the methodologies of compliance with whirl flutter-related requirements of FAR \/ CS 23 and 25 regulation standards. Methodologies are demonstrated on the example of a twin wing-mounted engine aircraft. For the compliance with FAR \/ CS 23 standard, two approaches are used: 1) standard approach to comply with the main requirement (\u00a7629(e)(1)) and 2) optimisation-based approach to comply with the requirement of parameter variations (\u00a7629(e)(2)). Standard approach, in which analyses are performed sequentially (state-by-state), is good for the nominal state. Optimisation-based analysis is used to calculate stability margins, which are then used for evaluation of stability reserve in terms of specific parameters. For compliance with FAR \/ CS 25 standard, the additional requirements to analyse specific failure states and adverse condition states are described.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/02\/IFASD-2019-049.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Ji\u0159\u00ed \u010ce\u010drdle<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2019-049<\/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":[1972,2025,2024,2023],"class_list":["post-18856","post","type-post","status-publish","format-standard","hentry","category-1-ifasd-2019","category-whirl-flutte","tag-aeroelasticity","tag-full-span-model","tag-ifasd","tag-stick-model","category-2433","category-2456","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18856","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=18856"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18856\/revisions"}],"predecessor-version":[{"id":18858,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18856\/revisions\/18858"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}