The effectiveness of surrogate modeling of helicopter vibrations, and the use of the surrogates for minimization of helicopter rotor vibrations are studied. The accuracies of kriging, radial basis function interpolation, and polynomial regression surrogates are compared. In addition, the surrogates are used to generate an objective function which is employed in an optimization study. The design variables consist of the cross-sectional dimensions of the structural member of the blade and non-structural masses. The optimized blade is compared with a baseline rotor blade which resembles an MBB BO-105 blade. Results indicate that: (a) kriging surrogates best approximate vibratory hub loads over the entire design space and (b) the surrogates can be used effectively in helicopter rotor vibration reduction studies.


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    Title :

    Surrogate based optimization of helicopter rotor blades for vibration reduction in forward flight


    Additional title:

    Näherungsbasierte Optimierung von Hubschrauberrotorblättern zur Schwingungsreduktion beim Vorwärtsflug


    Contributors:

    Published in:

    Publication date :

    2008


    Size :

    23 Seiten, 52 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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