This paper presents a detailed mathematical derivation of the sensitivity derivatives for the structural dynamic, aeroelastic stability and response characteristis of a rotor blade in hover and forward flight. The formulation is denoted by the term semianalytical approach, because certain derivatives have to be evaluated by a finite difference scheme. Using the present formulation, sensitivity derivatives for the structural dynamic and aeroelastic stability characteristics, were evaluated for both isotropic and composite rotor blades. Based on the results, useful conclusions are obtained regarding the relative merits of the semi-analytical approach, for calculating sensitivity derivatives, when compared to a pure finite difference approach.


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    Title :

    A new sensitivity analysis for structural optimization of composite rotor blades


    Additional title:

    Eine neue feinstufige Untersuchung zur strukturellen Optimierung von Rotorblättern aus Verbundwerkstoff


    Contributors:


    Publication date :

    1993


    Size :

    22 Seiten, 16 Bilder, 2 Tabellen, 14 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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