کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8055452 1519904 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Re-planning strategies for space station on-orbit activities executed in emergencies
ترجمه فارسی عنوان
استراتژی های مجدد برنامه ریزی برای فعالیت های ایستگاه فضایی در اورژانس اجرا شده در شرایط اضطراری
کلمات کلیدی
ایستگاه فضایی، برنامه ریزی مأموریت، ابتکاری، اضطراری،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی
In this paper, we develop strategies for the problem of space station on-orbit activity re-planning. Considering the effects of emergencies, a preprocessed strategy is firstly proposed to reconstruct conflicting missions. Furthermore, a greedy algorithm with interval-based strategies is used to re-plan the activities of the reconstructed missions by utilizing mission priority and preplanned activity schedule intervals. Taking into account the propagation of complicated constraints, a time backtrack iteration strategy is adopted to solve constraint conflicts. We demonstrate the proposed approach with a notional operation scenario of the Chinese future space station. The results indicate that our method can successfully re-plan space station on-orbit activities when emergencies occur, all constraint conflicts can be solved, and mission accomplishment rate is increased, in comparison with a method that does not include re-planning strategies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 151, October 2018, Pages 779-790
نویسندگان
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