{"id":587,"date":"2025-05-06T10:23:59","date_gmt":"2025-05-06T10:23:59","guid":{"rendered":"https:\/\/aerospace.technion.ac.il\/lab\/aeroelasticity\/?page_id=587"},"modified":"2025-05-06T11:35:21","modified_gmt":"2025-05-06T11:35:21","slug":"aeroelastic-analysis-and-testing-of-a-very-flexible-swept-wing","status":"publish","type":"page","link":"https:\/\/aerospace.technion.ac.il\/lab\/aeroelasticity\/research\/aeroelastic-analysis-and-testing-of-a-very-flexible-swept-wing\/","title":{"rendered":"Aeroelastic Analysis and Testing of Very Flexible Swept Wings"},"content":{"rendered":"<p>Following our study of the Pazy wing, an aeroelastic benchmark of a very flexible straight wing, we continue to study very flexible swept wings, where bending-torsion coupling affects the aeroelastic responses even in the undeformed state. Swept wings of 10 and 20-degree sweeps were tested in the low-speed wind tunnel at the Technion at static and flutter conditions. Our research papers describe the wings&#8217; design, analyses conducted using the Modal Rotation Method, test results, and insight into the wings&#8217; nonlinear aeroelastic behavior.<\/p>\n<h2>More Information<\/h2>\n<ul>\n<li>Watch a demonstration of a 20-degree swept wing entering flutter. The wing is set at a 10-degree angle of attack (indicated as AL1 in the video). As the test progresses, the airspeed gradually increases in the background until the onset of flutter. A small weight is attached to the trailing edge via a 3D-printed case with a thin neck, designed to act as a flutter fuse. As flutter-induced oscillations intensify, the neck eventually breaks, the weight flies off, and the flutter stops.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><iframe title=\"Flutter of a 20 deg swept very flexible wing at 10 degrees AoA\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/uJtUb8gX95w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>And here&#8217;s a reconstruction of the flutter mode from motion tracking system data<\/li>\n<\/ul>\n<p><iframe title=\"Reconstruction of the flutter mode of the 20-degree swept wing\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/K-rXf34p3Uc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<h2>People<\/h2>\n<p>Bar Revivo<\/p>\n<h2>Conference Papers<\/h2>\n<ul>\n<li>B. Revivo and D.E. Raveh, &#8220;<a href=\"https:\/\/doi.org\/10.2514\/6.2025-1018\">Static Aeroelasticity and Stability of Very Flexible Swept Wings<\/a>,&#8221; AIAA SciTech Forum, Orlando, 2025. AIAA 2025-1018.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Following our study of the Pazy wing, an aeroelastic benchmark of a very flexible straight wing, we continue to study very flexible swept wings, where bending-torsion coupling affects the aeroelastic responses even in the undeformed state. Swept wings of 10 and 20-degree sweeps were tested in the low-speed wind tunnel at the Technion at static [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":132,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-587","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aeroelastic Analysis and Testing of Very Flexible Swept Wings - Aeroelasticity Lab<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aerospace.technion.ac.il\/lab\/aeroelasticity\/research\/aeroelastic-analysis-and-testing-of-a-very-flexible-swept-wing\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aeroelastic Analysis and Testing of Very Flexible Swept Wings - Aeroelasticity Lab\" \/>\n<meta property=\"og:description\" content=\"Following our study of the Pazy wing, an aeroelastic benchmark of a very flexible straight wing, we continue to study very flexible swept wings, where bending-torsion coupling affects the aeroelastic responses even in the undeformed state. 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