Level flight airframe vibration at main rotor excitation frequencies was calculated. A NASTRAN tailboom analysis was compared with test data for evaluation of methods used to determine effective skin in a semimonocoque sheet-stringer structure. The flight vibration correlation involved comparison of level flight vibration for two helicopter configurations: clean wing, at light gross weight and wing stores at heavy gross weight. In the tailboom correlation, deflections and internal loads were compared using static test data and a NASTRAN analysis. An iterative procedure was used to determine the amount of effective skin of buckled panels under compression load.


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    Titel :

    Correlation of AH-1G helicopter flight vibration data and tailboom static test data with NASTRAN analytical results


    Beteiligte:
    Cronkhite, J. D. (Autor:in) / Wilson, H. E. (Autor:in) / Berry, V. L. (Autor:in)

    Erscheinungsdatum :

    1976-01-01


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





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