Airloads measured on a two-bladed helicopter rotor in flight, from the Tip Aerodynamic and Acoustic Test, are compared with calculations from a comprehensive helicopter analysis (CAMRAD/JA), and the pressures compared with calculations from a full-potential rotor code (FPR). The flight test results cover an advance ratio range from 0.19 to 0.38. The lowest speed case is characterized by the presence of significant blade-vortex interactions. Good correlation of peak-to-peak vortex-induced loads and the corresponding pressures is obtained. The results of the correlation for this two-bladed rotor are substantially similar to the results for three- and four-bladed rotors, concerning the tip vortex core size for best correlation, calculation of the peak-to-peak loads on the retreating side, and calculation of vortex-induced loads on inboard radial stations.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Correlation of airloads on a two-bladed helicopter rotor


    Contributors:


    Publication date :

    1991-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :



    UH-60A Helicopter Rotor Airloads Measured in Flight

    Kufeld, R. M. / Bousman, W. G. | British Library Conference Proceedings | 1996


    UH-60A helicopter rotor airloads measured in flight

    Kufeld, R.M. | Online Contents | 1997



    EFFECTS OF HELICOPTER ROTOR WAKE CHARACTERISTICS ON BLADE AIRLOADS

    Zioutis, X. K. / Spyropoulos, A. I. / Margaris, D. P. et al. | British Library Conference Proceedings | 2006