The dynamic fidelity of an operational blade-element simulation model of the UH-60A helicopter is assessed for the hovering and low-speed flight regimes. Nonparametric frequency-response identification techniques and time-history comparisons are used to determine the validity of vehicle responses. Frequency-domain methods are applied to the model to isolate deficiencies and verify refinements and corrections. A dedicated flight-test program was conducted to provide data used in the analyses. Model deficiencies are also identified by using side-by-side pilot assessments of a motion-based simulation and of a test aircraft. Model refinements are found to improve fidelity significantly in the frequency range of interest to handling-qualities research. The applicability of the model to high-bandwidth flight-control research is also discussed.


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    Titel :

    Validation of the dynamic response of a blade-element UH-60 simulation model in hovering flight


    Beteiligte:


    Erscheinungsdatum :

    1990-05-01


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch





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