This paper describes a method for the determination of the flexible modes of an air-breathing hypersonic vehicle. The method outlined here takes into account changes in vehicle mass and structural temperature over the duration of the vehicle's trajectory. A simple sizing program is outlined to estimate the vehicle volume, mass, and planform requirements for a dual-cycle (rocket and scramjet) powered vehicle. It is shown that the varying mass effects dominate the frequencies and mode-shapes over the structural heating effects. We then discuss the effects of the structural modes on the transmission zeros.


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    Title :

    Aerothermal Flexible Mode Analysis of a Hypersonic Vehicle (Postprint)


    Contributors:
    T. Williams (author) / M. A. Bolender (author) / D. B. Bowman (author) / O. Morataya (author)

    Publication date :

    2006


    Size :

    25 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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