کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
759678 896487 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimal trajectory and heat load analysis of different shape lifting reentry vehicles for medium range application
ترجمه فارسی عنوان
تجزیه و تحلیل خطوط مسیریابی مطلوب و بار حرارتی وسایل نقلیه مجددا بر روی بالابرهای مختلف برای کاربرد محدوده متوسط
کلمات کلیدی
بهینه سازی مسیر، تقویت قاعده نفوذی، وسیله نقلیه سنگین تر، محدودیت نرخ حرارت، روش سونوگرافی موشک فضایی، بال بدن، بالابر محدوده متوسط، دامنه طیف گسترده ای
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی

The objective of the paper is to compute the optimal burn-out conditions and control requirements that would result in maximum down-range/cross-range performance of a waverider type hypersonic boost-glide (HBG) vehicle within the medium and intermediate ranges, and compare its performance with the performances of wing-body and lifting-body vehicles vis-à-vis the g-load and the integrated heat load experienced by vehicles for the medium-sized launch vehicle under study. Trajectory optimization studies were carried out by considering the heat rate and dynamic pressure constraints. The trajectory optimization problem is modeled as a nonlinear, multiphase, constraint optimal control problem and is solved using a hp-adaptive pseudospectral method. Detail modeling aspects of mass, aerodynamics and aerothermodynamics for the launch and glide vehicles have been discussed. It was found that the optimal burn-out angles for waverider and wing-body configurations are approximately 5° and 14.8°, respectively, for maximum down-range performance under the constraint heat rate environment. The down-range and cross-range performance of HBG waverider configuration is nearly 1.3 and 2 times that of wing-body configuration respectively. The integrated heat load experienced by the HBG waverider was found to be approximately an order of magnitude higher than that of a lifting-body configuration and 5 times that of a wing-body configuration. The footprints and corresponding heat loads and control requirements for the three types of glide vehicles are discussed for the medium range launch vehicle under consideration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Defence Technology - Volume 11, Issue 4, December 2015, Pages 350–361
نویسندگان
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