Nonlinear Folding Wing-Tips for Gust Loads Alleviation

Andrea Castrichini, Vijaya Hodigere Siddaramaiah, Dario Calderon, Jonathan Cooper, Thomas Wilson, Yves Lemmens

Research output: Contribution to journalArticle (Academic Journal)peer-review

82 Citations (Scopus)


A recent consideration in aircraft design is the use of folding wing-tips with the aim of having higher aspect ratio aircraft with less induced drag, but also meeting airport gate limitations. This study builds on previous work investigating the effect of exploiting folding wing-tips in-flight as a device to reduce dynamic gust loads, but now with the introduction of a passive nonlinear hinge spring. A representative civil jet aircraft aeroelastic model was used in a multi-body simulation code to explore the effect of introducing such a hinged wingtip device on the loads behavior. Consideration was also given to the use of an active implementation on the folding device. It was found that significant reductions in the dynamic loads were possible.
Original languageEnglish
JournalJournal of Aircraft
Early online date17 Feb 2016
Publication statusE-pub ahead of print - 17 Feb 2016


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