The increased flexibility of long endurance aircraft having high aspect ratio wings necessitates attention to gust response and perhaps the incorporation of gust load alleviation. The design of civil transport aircraft with a strut or truss-braced high aspect ratio wing furthermore requires gust response analysis in the transonic cruise range. This requirement motivates the use of high fidelity nonlinear computational fluid dynamics (CFD) for gust response analysis. This paper presents the development of a CFD based gust model for the truss braced wing aircraft. A sharp-edged gust provides the gust system identification. The result of the system identification is several thousand time steps of instantaneous pressure coefficients over the entire vehicle. This data is filtered and downsampled to provide the snapshot data set from which a reduced order model is developed. A stochastic singular value decomposition algorithm is used to obtain a proper orthogonal decomposition (POD). The POD model is combined with a convolution integral to predict the time varying pressure coefficient distribution due to a novel gust profile. Finally the unsteady surface pressure response of the truss braced wing vehicle to a one-minus-cosine gust, simulated using the reduced order model, is compared with the full CFD.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Developing an Accurate CFD Based Gust Model for the Truss Braced Wing Aircraft


    Contributors:

    Conference:

    AIAA Applied Aerodynamics Conference ; 2013 ; San Diego, CA, United States


    Publication date :

    2013-06-24


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Developing an Accurate CFD Based Gust Model for the Truss Braced Wing Aircraft

    Bartels, R. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2013




    Passive Gust Loads Alleviation in a Truss-Braced Wing Using an Inerter-Based Device

    Szczyglowski, Christopher P. / Neild, Simon A. / Titurus, Branislav et al. | AIAA | 2019


    Passive Gust Load Alleviation In a Truss-Braced Wing Using an Inerter-Based Device

    Szczyglowski, Christopher P. / Neild, Simon / Titurus, Brano et al. | AIAA | 2018