Journal of Space Science and Technology

Journal of Space Science and Technology

هدایت بهینه بر خط بازگشت به زمین از طریق بسط مجانبی هماهنگ

Authors
Abstract
هدف اصلی مقاله حاضر، هدایت بهینه و برخط اجسام بازگشتی به زمین است. روند دستیابی به این مهم مبتنی بر روش بسط مجانبی هماهنگ است که یکی از روش‌های خانوادة اغتشاشات تکین است و به کمک روش تغییر اکسترمال‌ها تقویت شده است. روش جدید حاصل MAEOGکه مخفف کلمات مربوط به هدایت بهینة مبتنی بر بسط مجانبی هماهنگ است ضمن ارائة راه حل با دقت قابل قیاس با روش‌های دیگر، بسیار سریع مسئله را به جواب می‌رساند و زمان حل را کاهش می‌دهد. به علاوه، این امکان را می‌دهد که چه برا و چه زاویة رول به عنوان متغیرهای کنترل در نظر گرفته شوند. ویژگی‌های روش جدید برای توسعة الگوریتم هدایتی بازگشت به زمین کاملاً مناسب به نظر می‌رسند.
Keywords

Article Title Persian

Online Optimal Reentry Guidance via Matched Asymptotic Expansion

Authors Persian

مهدی مرتضوی
داوود عباسی مقدم
Abstract Persian

Online optimal reentry guidance of reentry vehicles is the main objective of this paper. The procedure is based on the Matched Asymptotic Expansion (MAE) method, one of the Singular Perturbation Theory (SPT) procedures, and is aided with the Variation of Extremals (VOE) method. The new technique, named MAEOG(Matched Asymptotic Expansion Optimal Guidance) offers a very low solution time and an acceptable accuracy compared with the other numerical methods used until now for reentry optimization. Furthermore, it permits considering both the lift and the aerodynamic roll angle as control variables. The features of the new method appear completely suitable to develop a guidance scheme for atmospheric reentry.

Keywords Persian

Optimal control
Reentry
MAEOG
solution time
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Volume 3, Issue 2 - Serial Number 7
شماره پیاپی 7
Winter 2011
Pages 69-76

  • Receive Date 16 June 2014
  • Revise Date 14 January 2024
  • Accept Date 19 April 2016
  • First Publish Date 19 April 2016