کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5486441 | 1399462 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Environmental effect of space debris repositioning
ترجمه فارسی عنوان
اثر زیست محیطی تغییر مکان بقایای فضا
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کلمات کلیدی
بقایای فضایی، بحران زیست محیطی، تغییر موقعیت
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
چکیده انگلیسی
One of the proposed measures to limit the number of near-Earth orbiting fragments to a sustainable level is to actively remove large derelict objects from crowded orbital regions. The two main removal procedures considered so far are (1) a direct targeted reentry maneuver or (2) a deorbit maneuver resulting in a predicted 25-year lifetime for the target object. We study here the viability of a third option, which consists of repositioning the target to an optimally chosen altitude according to a selected benefit/cost objective function. The objective function accounts for both the maneuver cost and the reduction of environmental criticality of the object. Numerical simulations are conducted to determine the optimal sequence of repositioning maneuvers for a given available deorbiting propellant. Results show that an optimal repositioning campaign tends to displace ton-class objects from around 900-1000Â km altitude down to around 750-800Â km altitude and to redistribute debris mass from altitudes around 1500Â km across lower density nearby altitudes. Comparisons with a 25-year lifetime deorbiting suggest a significant performance improvement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 60, Issue 1, 1 July 2017, Pages 28-37
Journal: Advances in Space Research - Volume 60, Issue 1, 1 July 2017, Pages 28-37
نویسندگان
C. Bombardelli, E.M. Alessi, A. Rossi, G.B. Valsecchi,