燃气发生器身部多学科设计优化

童晓艳; 蔡国飙; 尘军; 王珏

燃气发生器身部多学科设计优化

1.
北京航空航天大学宇航学院, 北京 100083
2. 北京航天动力机械研究所, 北京 100076

详细信息

作者简介:
童晓艳(1975-),女,湖北荆门人,副教授,tongxy_buaa@163.com.

中图分类号: V 434⁺.22
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- 文章访问数: 2869
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出版历程
- 收稿日期: 2005-11-25
- 网络出版日期: 2006-10-31

Multidisciplinary design optimization of gas-generator body

1.
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
2. Institute of Beijing Aerospace Power Mechanics, Beijing 100076, China

摘要

摘要: 为了探索液体火箭发动机多学科设计优化的一般方法,以液体火箭发动机燃气发生器身部为研究对象,在对其进行面向设计的多学科分析的基础上,建立了燃气发生器身部的多学科优化模型,涉及流动、传热、结构强度3个相互耦合的学科.引入了一种新的多目标方法——物理规划方法处理其中的多目标优化问题,通过类别函数将设计者的偏好转化为优化目标,避免了对各个不同大小和量纲的分目标之间重要性的比较和权衡.优化结果显示,利用多学科设计优化减轻了燃气发生器的质量,改善了原有设计,能够提高发动机的设计水平.
- 优化 /
- 燃气发生器 /
- 规划理论 /
- 多学科设计优化 /
- 物理规划
Abstract: To exploit a generic multidisciplinary design optimization (MDO) method on liquid propellant rocket engines, a gas-generator body in a liquid propellant rocket engine was used as the object of this research. Based on the design-oriented multidisciplinary analysis, the multidisciplinary design optimization model of the gas-generator body was constructed. Three coupling disciplines, fluiddynamics, heat transfer and mechanics were included in the MDO model. A new multi-objective method called physical programming was introduced to deal with the multi-objective optimization problem in this research. In physical programming, the objective in the optimization problem reflects the preference of designers through class function, which avoids the balance among objectives with different magnitudes and dimensions. The result shows that the mass of the gas generator was reduced and the original design was improved by multidisciplinary design optimization. Multidisciplinary design optimization can be used to obtain the better design of the whole liquid propellant rocket engines.
- optimization /
- gas generators /
- programming theory /
- multidisciplinary design optimization /
- physical programming

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参考文献(1)

[1] Sobieski J. Multidisciplinary design optimization:an emerging new engineering discipline . NASA TM-107761, 1993 [2] Giesing J P. A summary of industry MDO applications and needs . AIAA 98-4737, 1998 [3] Liu W, Cui W. Multidisciplinary design optimization (MDO):a promising tool for the design of HOV[J]. Journal of Ship Mechanics, 2004,8(6):95-112 [4] 吴宝贵,黄洪钟,原薇. 汽车设计的多学科设计优化方法[J].应用科学学报,2005,23(4):420-423 Wu Baogui, Huang Hongzhong, Yuan Wei. Multidisciplinary design optimization:its methodology and application to vehicle design[J]. Journal of Applied Sciences, 2005,23(4):420-423(in Chinese) [5] 余雄庆.飞机设计新技术——多学科设计优化[J]. 航空科学技术,1999,1:19-21 Yu Xiongqing. A new methodology for aircraft design:multidisciplinary design optimization[J]. Journal of Aviation Science and Technology, 1999,1:19-21(in Chinese) [6] 余雄庆,丁运亮.多学科设计优化算法及其在飞行器设计中应用[J].航空学报,2000,21(1):1-6 Yu Xiongqing, Ding Yunliang. Multidisciplinary design optimization, a survey of its algorithms and applications to aircraft design[J]. Acta Aeronautica et Astronautica Sinica, 2000,21(1):1-6(in Chinese) [7] 方杰,童晓艳,毛晓芳,等.某型发动机喷管的多学科设计优化[J].推进技术,2004,25(6):557-560 Fang Jie, Tong Xiaoyan, Mao Xiaofang, et al. An MDO approach for engine nozzle design[J]. Journal of Propulsion Technology, 2004,25(6):557-560(in Chinese) [8] 方杰,蔡国飙,王珏,等.再生冷却推力室的多学科设计优化[J].火箭推进,2005,31(2):12-16 Fang Jie, Cai Guobiao, Wang Jue, et al. A multidisciplinary design optimization approach for a regeneratively cooled thrust chamber[J]. Journal of Rocket Propulsion, 2005,31(2):12-16(in Chinese) [9] Messac A. Physical programming:effective optimization for design[J]. AIAA Journal, 1996, 34( 1):149-158

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