| タイトル | Nearly-grazing optimal trajectories for noncoplanar, aeroassisted orbital transfer |
| 著者（英） | Lee, W. Y.; Mease, K. D.; Miele, A. |
| 著者所属（英） | Princeton Univ.|Rice Univ. |
| 発行日 | 1988-06-01 |
| 言語 | eng |
| 内容記述 | 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. |
| NASA分類 | ASTRODYNAMICS |
| レポートNO | 88A45714 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/369860 |
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