کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8132247 | 1523275 | 2018 | 50 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimal Earth's reentry disposal of the Galileo constellation
ترجمه فارسی عنوان
دفع زباله بهینه زمین از صورت فلکی گالیله
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کلمات کلیدی
بهینه سازی مسیر، دفع عمر، صورتحساب ناوبری بقایای فضایی، انتشار بلندمدت،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
چکیده انگلیسی
Nowadays there is international consensus that space activities must be managed to minimize debris generation and risk. The paper presents a method for the end-of-life (EoL) disposal of spacecraft in Medium Earth Orbit (MEO). The problem is formulated as a multiobjective optimisation one, which is solved with an evolutionary algorithm. An impulsive manoeuvre is optimised to reenter the spacecraft in Earth's atmosphere within 100â¯years. Pareto optimal solutions are obtained using the manoeuvre Îv and the time-to-reentry as objective functions to be minimised. To explore at the best the search space a semi-analytical orbit propagator, which can propagate an orbit for 100â¯years in few seconds, is adopted. An in-depth analysis of the results is carried out to understand the conditions leading to a fast reentry with minimum propellant. For this aim a new way of representing the disposal solutions is introduced. With a single 2D plot we are able to fully describe the time evolution of all the relevant orbital parameters as well as identify the conditions that enables the eccentricity build-up. The EoL disposal of the Galileo constellation is used as test case.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 61, Issue 4, 15 February 2018, Pages 1097-1120
Journal: Advances in Space Research - Volume 61, Issue 4, 15 February 2018, Pages 1097-1120
نویسندگان
Roberto Armellin, Juan F. San-Juan,