Flutter characteristics of a cantilevered high aspect ratio wing with winglet were investigated. The configuration represented a current technology, twin-engine airplane. A low-speed and high-speed model were used to evaluate compressibility effects through transonic Mach numbers and a wide range of mass-density ratios. Four flutter mechanisms were obtained in test, as well as analysis from various combinations of configuration parameters. The coupling between wing tip vertical and chordwise motions was shown to have significant effect under some conditions. It is concluded that for the flutter model configurations studied, the winglet related flutter was amenable to the conventional flutter analysis techniques.


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    Title :

    Flutter Parametric Studies of Cantilevered Twin-Engine-Transport Type Wing with and Without Winglet. Volume 1: Low-Speed Investigations


    Contributors:

    Publication date :

    1984


    Size :

    95 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English