An optimization procedure is developed to investigate the effect of blade aerodynamic characteristics on cruise and hover performance of prop-rotor aircraft. The objective is to simultaneously maximize the high speed cruise propulsive efficiency and the hover figure of merit. Constraints are imposed on the hover and cruise thrust which are representative of the operating conditions of a civil tiltrotor aircraft. Design variables include the blade chord, twist, thickness and zero lift angle of attack distributions. The aerodynamic analysis is performed using the classical blade element momentum approach, including a representation of the high lift potential of propeller/rotor blades in comparison to two dimensional airfoil properties. Optimum designs are presented for hover only, airplane mode only and for simultaneous hover/cruise modes. The results are compared with the XV-15 rotor blade performance at 300 knots. Optimum results for simultaneous hover/cruise modes are also presented for 400 knots operation.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A performance based optimization of high speed prop-rotors


    Additional title:

    Optimierung der Betriebseigenschaften von Hochgeschwindigkeits-Prop-Rotoren


    Contributors:

    Published in:

    Publication date :

    1995


    Size :

    9 Seiten, 18 Bilder, 19 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    A Performance Based Optimization of High Speed Prop-Rotors

    McCarthy, T.R.M. | Online Contents | 1995


    Optimization Procedure for Design of High-Speed Prop-Rotors

    Chattopadhyay, Aditi | Online Contents | 1994


    A design optimization procedure for high-speed prop-rotors

    Chattopadhyay, A. / Narayan, J.R. | Tema Archive | 1992


    A design optimization procedure for high-speed prop-rotors

    CHATTOPADHYAY, ADITI / NARAYAN, JOHNNY | AIAA | 1992


    Optimum Design of High-Speed Prop-Rotors

    Chattopadhyay, Aditi / McCarthy, Thomas Robert | NTRS | 1993