摘要
气动外形设计是有翼再入飞行器(RV-W)的关键技术之一。分析了气动参数对再入飞行性能的影响,探讨了有翼再入飞行器气动外形设计的规律和准则。基于上述设计准则,以类X-37B飞行器为研究对象,集成几何参数化建模、气动力、气动热、热防护等学科快速分析方法,采用多学科设计优化方法,以最优气动特性为目标对飞行器气动外形进行了优化;得到优化气动外形后,对飞行器热防护系统(TPS)进行了轻量化设计优化。结果表明,优化外形的气动特性相比初始外形得到了较大的提升,设计优化得到的热防护系统重量占比(8.7%)优于同类飞行器的热防护系统重量占比统计数据,说明了本文有翼再入飞行器气动外形集成设计优化方法的有效性,可为同类飞行器提供参考。
Aeroshape design is one of the key technologies for Winged Re-entry Vehicles(RV-W).The influence of aerodynamic parameters on re-entry flight performance is analysed,and the criteria for aerodynamic shape design of winged re-entry vehicles are discussed.Based on the design criteria,the X-37B analog is employed to optimize the flight's aerodynamic performance.The parametric geometry modeling method,along with the aerodynamic/aerothermodynamic fast prediction method,are integrated into the aeroshape optimization.The light-weight Thermal Protection System(TPS)is designed and optimized for optimal configuration.Results indicate that the aerodynamic characteristics of the optimal configuration are greatly improved compared with the initial configuration,and the TPS weight fraction(8.7%)is less than the statistical data of similar aerospace vehicles.The aeroshape integrated design optimization method for RV-W could provide reference for similar vehicle designs.
作者
李正洲
贺元元
高昌
张小庆
王琪
LI Zhengzhou;HE Yuanyuan;GAO Chang;ZHANG Xiaoqing;WANG Qi(Science and Technology on Scramjet Laboratory,China Aerodynamics Research and Development Center,Mianyang 621000,China;China Aerodynamics Research and Development Center,Mianyang 621000,China)
出处
《航空学报》
EI
CAS
CSCD
北大核心
2020年第5期108-122,共15页
Acta Aeronautica et Astronautica Sinica
基金
高超声速超燃冲压发动机技术重点实验室基金(STS/MY-ZY-2018-007)。
关键词
有翼再入飞行器
气动力
气动热
热防护
高超声速
多学科设计优化
winged re-entry vehicles
aerodynamics
aerothermodynamic
thermal protection
hypersonic
multidisciplinary design optimization
