The flight mechanics simulation of a hovering helicopter is investigated by comparing the results of two different numerical models with flight test data for a hovering AH-64 Apache. The two models are the U.S. Army BEMAP and the Technion model. These nonlinear models are linearized by applying a numerical linearization procedure. The results of the linear models are compared with identification results in terms of eigenvalues, stability and control derivatives, and frequency responses. Detailed time histories of the responses of the complete nonlinear models, as a result of various pilots' inputs, are compared with flight test results. In addition the sensitivity of the models to various effects are also investigated. The results are discussed and problematic aspects of the simulation are identified.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Investigation of the flight mechanics simulation of a hovering helicopter


    Contributors:
    Chaimovich, M. (author) / Rosen, A. (author) / Rand, O. (author) / Mansur, M. H. (author) / Tischler, M. B. (author)


    Publication date :

    1992-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Helicopter stability in hovering flight

    Payne, P.R. | Engineering Index Backfile | 1955


    Helicopter control and stability in hovering flight

    Miller, R.H. | Engineering Index Backfile | 1948


    Experimental Investigation for a Small Helicopter in Hovering and Forward Flight Regimes

    Dayhoum, Abdallah / Zakaria, Mohamed Y. / Abdelhamid, Omar E. | ASCE | 2023



    Helicopter hovering performance

    Britland, C.M. | Engineering Index Backfile | 1949