| タイトル | Optimization of Low-Thrust Spiral Trajectories by Collocation |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120014379 |
| 著者（英） | Falck, Robert D.; Dankanich, John W. |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2012-09-01 |
| 言語 | eng |
| 内容記述 | As NASA examines potential missions in the post space shuttle era, there has been a renewed interest in low-thrust electric propulsion for both crewed and uncrewed missions. While much progress has been made in the field of software for the optimization of low-thrust trajectories, many of the tools utilize higher-fidelity methods which, while excellent, result in extremely high run-times and poor convergence when dealing with planetocentric spiraling trajectories deep within a gravity well. Conversely, faster tools like SEPSPOT provide a reasonable solution but typically fail to account for other forces such as third-body gravitation, aerodynamic drag, solar radiation pressure. SEPSPOT is further constrained by its solution method, which may require a very good guess to yield a converged optimal solution. Here the authors have developed an approach using collocation intended to provide solution times comparable to those given by SEPSPOT while allowing for greater robustness and extensible force models. |
| NASA分類 | Astrodynamics |
| レポートNO | E-18386
AIAA Paper 2012-4423
NASA/TM-2012-217699 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/241172 |
