The results presented in this paper apply to a generic vehicle entering a planetary atmosphere which makes use of a variable geometry change to modulate the heat, drag, and acceleration loads. Two structural concepts for implementing the cone angle variation, namely a segmented shell and a corrugated shell, are presented. A structural analysis of these proposed structural configuration shows that the stress levels are tolerable during entry. The analytic expressions of the longitudinal aerodynamic coefficients are also derived, and guidance laws that track reference heat flux, drag, and aerodynamic acceleration loads are also proposed. These guidance laws have been tested in an integrated simulation environment, and the results indicate that use of variable geometry is feasible to track specific profiles of dynamic load conditions during reentry.


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    Titel :

    Structural and Trajectory Control of Variable Geometry Planetary Entry Systems


    Beteiligte:
    Quadrelli, Marco (Autor:in) / Kwok, Kawai (Autor:in) / Pellegrino, Sergio (Autor:in)

    Kongress:

    AIAA Space 2009 Conference and Exposition ; 2009 ; Pasadena, CA, United States


    Erscheinungsdatum :

    14.09.2009


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    Kwok, Kawai / Pellegrino, Sergio / Quadrelli, Marco et al. | AIAA | 2009


    Structural and Control Concepts for Variable Geometry Planetary Entry Systems

    Kwok, K. / Pellegrino, S. / Quadrelli, M. et al. | British Library Conference Proceedings | 2009