Balka (1981) has identified the attainment of a 'jet-smooth' ride as a primary goal of the helicopter industry for commercial and certain military helicopters. It was noted that criteria accounting for both multiple axis vibration and interior noise are needed. The present investigation has the objective to present a vibration and interior noise data base in a format suitable for direct evaluation of aircraft ride quality. The investigation is also concerned with an assessment of the measured environment against available criteria as an indication of the state-of-the-art for current machines. Interior noise and vibration measurements were obtained on eight military helicopters during routine operational flights. The data are presented in the form of a number of parameters.


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    Title :

    Operational military helicopter interior noise and vibration measurements with comparisons to ride quality criteria


    Contributors:

    Publication date :

    1983-10-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English