کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5472669 | 1520063 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-objective optimization for re-entry spacecraft conceptual design using a free-form shape generator
ترجمه فارسی عنوان
بهینه سازی چند منظوره برای طراحی مفهومی فضاپیمای مجدد با استفاده از یک مولد شکل آزاد شکل
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کلمات کلیدی
بهینه سازی موتی، وسایل نقلیه ورود مجدد، ژنراتور شکل رایگان شکل
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی هوافضا
چکیده انگلیسی
In this paper we developed a multi-disciplinary, multi-objective optimization procedure for the shape generation of re-entry spacecrafts performing conventional landing from a Low Earth Orbit return mission. A special free-form parametric model, able to define complex vehicle shapes with no explicit support surfaces, was defined and used for this purpose. Model capabilities have been preliminary validated by emulating the HOPE-X vehicle prototype and computing the aerodynamic coefficients at Mach number 2 and 10. Multi-objective optimization has been performed by considering a multidisciplinary approach comprising aerodynamic analysis, trajectory estimation, and heating analysis starting by fixed waypoints along the descent path. A Pareto front based on mass and cross range objective functions was generated, highlighting the existence of several design scenarios: minimum mass, maximum winglet, maximum cross range. The existing trade-offs between the objective functions were related mainly to bank angle values and vehicle length, featuring main design trends.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 71, December 2017, Pages 312-324
Journal: Aerospace Science and Technology - Volume 71, December 2017, Pages 312-324
نویسندگان
Antonio Viviani, Luigi Iuspa, Andrea Aprovitola,