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 a 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 :

    Winglet effects on the flutter of twin-engine-transport type wing


    Contributors:

    Publication date :

    1984-05-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Winglet effects on the flutter of twin-engine-transport type wing

    BHATIA, K. / NAGARAJA, K. / RUHLIN, C. | AIAA | 1984


    Winglet effects on the flutter of a twin-engine transport-type wing

    Bhatia, K. G. / Nagaraja, K. S. / Ruhlin, C. L. | NTRS | 1985


    Winglet effects on the flutter of a twin-engine transport-type wing

    BHATIA, K. G. / NAGARAJA, K. S. / RUHLIN, C. L. | AIAA | 1985