کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5472878 | 1520068 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analytical entry guidance based on pseudo-aerodynamic profiles
ترجمه فارسی عنوان
راهنمایی ورودی تحلیلی بر اساس پروفیل های شبه آیرودینامیکی
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی هوافضا
چکیده انگلیسی
An autonomous entry guidance is developed for a hypersonic glide vehicle with high Lift-to-Drag ratio (L/D) based on 3-D analytical glide formulas. To compensate the effects of the Earth's rotation, the pseudo-aerodynamic forces are introduced as the fusions of the aerodynamic forces and inertial forces due to the Earth's rotation. To avoid drastic changes in Angle of Attack (AOA) and bank angle, we carefully forecast the change trends of the inertial forces and then design the pseudo-aerodynamic profiles as inversely proportional functions. Here a complex but useful identity is found and proved theoretically, which helps to simplify the pseudo-aerodynamic profiles without losing accuracy significantly. Subsequently, new 3-D analytical glide formulas are derived for these inversely-proportional profiles and then used to determine the profile parameters and bank reversals. Due to the careful design, the guidance is capable of steering the high-L/D vehicle to any place on the Earth accurately while achieving almost constant commands during the steady glide phase, a major phase of flight. The superior performance of the guidance is verified by the Monte Carlo simulations with challenging disturbances including initial state dispersions, aerodynamic uncertainties, and atmospheric perturbations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 66, July 2017, Pages 315-331
Journal: Aerospace Science and Technology - Volume 66, July 2017, Pages 315-331
نویسندگان
Wenbin Yu, Wanchun Chen, Zhiguo Jiang, Hao Zhou, Xiaoming Liu, Ming Liu,