Parameterization and the Davidon-Fletcher-Powell method are used to study the characteristics of optimal shuttle entry trajectories. Two problems of thermal protective system weight minimization are considered: roll modulation and roll plus an angle-of-attack modulation. Both problems are targeted for the edges of the entry footprint. Results consistent with constraints on loads and control bounds are particularly well-behaved and strongly support 'energy' approximation results obtained for the case of symmetric flight by Kelley and Sullivan (1973). Furthermore, results indicate that optimal shuttle entry trajectories should be easy to duplicate and to analyze by using simple techniques.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Selected optimal shuttle entry computations


    Beteiligte:

    Kongress:

    Mechanics and Control of Flight Conference ; 1974 ; Anaheim, CA


    Erscheinungsdatum :

    01.08.1974


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Shuttle entry guidance

    Harpold, J. C. / Graves, C. A., Jr. | NTRS | 1978



    Shuttle entry guidance revisited

    Mease, Kenneth D. / Kremer, Jean-Paul | NTRS | 1992


    Selected stability and control derivatives from the first Space Shuttle entry

    Iliff, K. W. / Maine, R. E. / Cooke, D. R. | NTRS | 1981