This paper addresses the problem of determining helicopter rotor mode damping from a state-space model of rotor, fuselage, and inflow in which some of the elements of the system matrices are calculated directly using frequency domain system identification techniques. Simulated flight test data are used to study the fundamental features of a direct state-space matrix identification process including the sensitivity to output noise and the sensitivity to the initial guess of each matrix element to be identified. An improved formulation of the frequency response matching problem is discussed that substantially reduces the computational cost of the solution. The results indicate that the identification procedure is accurate and robust.


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    Titel :

    Determination of helicopter rotor damping from simulated data using frequency domain system identification


    Weitere Titelangaben:

    Ermittlung der Hubschrauberrotordämpfung aus Simulationsdaten mit Einsatz der Systemidentifizierung im Frequenzbereich


    Beteiligte:
    Jones, C.T. (Autor:in) / Celi, R. (Autor:in)


    Erscheinungsdatum :

    1995


    Format / Umfang :

    15 Seiten, 16 Bilder, 19 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Determination of Helicopter Rotor Damping From Simulated Data Using Frequency Domain System Identification

    Jones, C. / Celi, R. / American Institute of Aeronautics and Astronautics| ASME| ASCE | British Library Conference Proceedings | 1995



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    AIAA-2001-1536 Time Domain Damping Identification in Helicopter Rotor Systems

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