摘要
以助推-滑翔飞行器为研究对象,开展多学科设计优化在其总体设计过程中的应用研究。首先对助推-滑翔飞行器进行多学科设计优化任务分析、多学科建模,并建立了助推-滑翔飞行器总体多学科设计优化模型;其次对助推-滑翔飞行器总体设计学科间耦合特点进行分析,在此基础上提出了基于最优灵敏度方法的两层系统集成优化策略;最后通过数值优化算例验证了方法的有效性。优化结果表明,该方法具有较好的收敛速度,且使满载起飞质量减少9%,为高性能飞行器总体设计提供新的设计思路。
The application of multidisciplinary design optimization（ MDO） for boost-glide Vehicle（ BGV） ＇s overall design is addressed. First,mission defining and multidisciplinary modeling are investigated,and the MDO problems for BGV＇s overall design are presented. Second,the system coupling characteristics for BGV are analyzed,and then a Bi-level system integrated optimization（ BLSIO） strategy based on the optimal sensitivity method（ OSM） is proposed for BGV＇s MDO. Lastly,a numerical example is tested to explain the method＇s effectiveness. The results indicate that the BLSIO has extreme convergence,and the launch weight for BGV deceases by 9%,the proposed method gives new clues for high performance flight vehicles.
出处
《现代防御技术》
北大核心
2015年第1期46-51,共6页
Modern Defence Technology
关键词
助推-滑翔飞行器
总体设计
多学科设计优化
最优灵敏度方法
boost-glide vehicle（BGV）
overall design
multidisciplinary design optimization（MDO）
optimal sensitivity method
