This paper discusses aeroassisted orbital transfer maneuvers under the assumption that the terminal orbital inclinations are different. Both GEO-to-LEO and LEO-to-LEO transfers are considered in connection with a spacecraft which is controlled during the atmospheric pass via the angle of attack and the angle of bank. Within the framework of classical optimal control, the following problems are studied: the minimization of the total characteristic velocity (P1); the minimization of the time integral of the square of the path inclination (P5); and the minimization of the peak heating rate (Q1). Numerical solutions are obtained by means of the sequential gradient-restoration logarithm for optimal control problems under the conditions that, for the problem (P1), the plane change components are optimized, while for the problems (P5) and (Q1), the plane change components are kept at the levels determined for problem (P1). The engineering implications of the solutions are discussed, in order to determine the most useful solutions in the light of energy requirements and heat transfer requirements.


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    Titel :

    Nearly-grazing optimal trajectories for noncoplanar, aeroassisted orbital transfer


    Beteiligte:
    Miele, A. (Autor:in) / Mease, K. D. (Autor:in) / Lee, W. Y. (Autor:in)


    Erscheinungsdatum :

    01.06.1988



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Nearly-grazing optimal trajectories for aeroassisted orbital transfer

    Miele, A. / Mease, K. D. / Basapur, V. K. | NTRS | 1986



    Optimal Multi-Criteria Aeroassisted Orbital Transfer Trajectories

    Jaensch, C. / Well, K. H. / International Federation of Automatic Control | British Library Conference Proceedings | 1995


    Introduction to Optimal Trajectories for Aeroassisted Orbital Transfer

    Miele, A. / Lee, B. S. | British Library Conference Proceedings | 1994