基于改进CO-RS的平流层飞艇总体设计与优化

梁浩全; 祝明; 姜光泰; 武哲

基于改进CO-RS的平流层飞艇总体设计与优化

北京航空航天大学航空科学与工程学院, 北京 100191

详细信息

中图分类号: V274
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- 被引次数: 0
出版历程
- 收稿日期: 2011-11-22
- 网络出版日期: 2013-02-28

Conceptual design optimization of stratosphere airship based on improved CO-RS

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 为改进响应面协同优化(CO-RS,Collaborative Optimization based on Response Surface)方法的工程实用性,提出改进的CO-RS方法.在响应面建立中应用广义乘子法和信赖域法,取消响应面更新对梯度的依赖性.针对平流层飞艇的总体设计与优化问题,基于改进的CO-RS框架,进行了系统任务分析和学科耦合分析.对气动与推进子系统、结构子系统和能源子系统进行了学科分析,以最小化平流层飞艇的质量为目标,建立基于改进CO-RS框架的多学科设计优化(MDO,Multidisciplinary Design Optimization)模型和相应的学科分析模型.利用iSIGHT软件搭建求解平台,采用改进的CO-RS算法进行仿真计算,并得到合理结果,验证了所建立的MDO模型的合理性和改进的CO-RS算法在平流层飞艇总体设计优化中的有效性.
- 飞艇 /
- 多学科设计优化 /
- 协同优化 /
- 总体设计 /
- 响应面
Abstract: An improved collaborative optimization based on response surface(CO-RS) methodology was developed to be well applied to the engineering design. The response surface was constructed independent on gradient by augmented Lagrange and trust region optimization methods. System mission requirements and disciplinary coupling relations of stratosphere airship were analyzed in the framework of improved CO-RS.multidisciplinary design optimization(MDO) model coupled with dynamics and propulsion subsystem, structure subsystem, and energy subsystem analysis models was established with total mass as the objective for stratosphere airship conceptual design. Using the iSIGHT software to construct the solving architecture, the MDO model and analysis models were simulated and calculated with the improved CO-RS methodology. The results prove the rationality of the MDO model and the effectiveness of the improved CO-RS methodology in stratosphere airship conceptual design optimization.
- airship /
- multidisciplinary design optimization(MDO) /
- collaborative optimization /
- conceptual design /
- response surface method

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参考文献(19)

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