The objective of the report is to present the aerodynamic and dynamic helicopter equations supported by derivations and a comprehensive discussion. The aerodynamic equations are developed through a modified blade element approach although other alternative techniques are considered. The equations are not constrained to a given, or a number of given, flight conditions but are valid for the entire flight regime including hover, transition, autorotation, the effects of varying altitude, ground effects, and blade aeroelasticity in twist. The dynamic derivation develops a set of unabridged and simplified equations of translational and angular rates specifically for a tandemrotor helicopter. The dynamic and aerodynamic effects on the helicopter rotor are combined to produce equations to describe blade acceleration, velocity, and position, while flapping, at chosen points during a rotation. A technique is also presented for greatly simplifying the simulation of a tandem-rotor helicopter which eliminates the necessity of construction detailed, identical mathematical models for the two rotors.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Simulation of Helicopter and V/STOL Aircraft., Volume I: Helicopter Analysis Report


    Contributors:
    J. R. Toler (author) / W. McIntyre (author) / M. P. Coffee (author)

    Publication date :

    1963


    Size :

    1 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English