The simulation of highly agile aircraft during the development phase presents a significant challenge to aerodynamic and propulsion ground test and evaluation methodologies. The primary simulation challenges are caused by the inherent unsteady, separated nature of the flow phenomena associated with maneuvering aircraft that cause dynamic effects on the airframe and engine. In general, ground test techniques are quasi-steady and transient effects are represented by linearized superposition of steady-state data and unsteady small disturbances. Current trends in the design of tactical fighter aircraft require close coupling between the airframe, avionics, and propulsion systems. In addition, the extreme attitudes and high angular rate motions of this new breed of vehicle causes a strong nonlinear coupling between components. In the current paper, several aerodynamic and propulsion ground test and evaluation methodologies applicable to maneuvering aircraft are summarized, challenges associated with current techniques are identified, and an emerging integrated test and evaluation concept that can significantly impact the quality, time, and cost of developing a new flight vehicle is introduced.


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    Titel :

    USAF/AEDC Aerodynamic and Propulsion Ground Test and Evaluation Techniques for Highly Maneuverable Aircraft: Capabilities and Challenges


    Beteiligte:
    E. M. Kraft (Autor:in) / G. R. Lazalier (Autor:in) / M. L. Laster (Autor:in)

    Erscheinungsdatum :

    1994


    Format / Umfang :

    15 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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