The problem of an airplane being upset by encountering the vortex wake of a large transport on takeoff or landing is currently receiving considerable attention. This paper describes the technique and results of a study to assess the effectiveness of automatic control systems in alleviating vortex wake upsets. A six-degree-of-freedom nonlinear digital simulation was used for this purpose. The analysis included establishing the disturbance input due to penetrating a vortex wake from an arbitrary position and angle. Simulations were computed for both a general aviation airplane and a commercial jet transport. Dynamic responses were obtained for the penetrating aircraft with no augmentation and with various command augmentation systems. The results of this preliminary study indicate that it is feasible to use an automatic control system to alleviate vortex encounter upsets.


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    Titel :

    Study of control system effectiveness in alleviating vortex wake upsets.


    Beteiligte:
    Johnson, W. A. (Autor:in) / Rediess, H. A. (Autor:in)

    Kongress:

    Guidance and Control Conference ; 1973 ; Key Biscayne, FL


    Erscheinungsdatum :

    1973-08-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Study of Control System Effectiveness in Alleviating Vortex Wake Upsets

    Walter A. Johnson / Gary L. Tepert / Herman A. Rediess | AIAA | 1974



    Analysis of vortex wake encounter upsets

    Johnson, W. A. / Teper, G. L. | NTRS | 1974


    Analysis of Vortex Wake Encounter Upsets

    W. A. Johnson / G. L. Teper | NTIS | 1974


    Passive Wake Vortex Control

    J. M. Ortega | NTIS | 2001