水泵叶片的多学科设计优化理论与方法研究
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摘要
多学科设计优化(Multidisciplinary Design Optimization, MDO)技术是20世纪90年代以来在国外迅速发展起来的一门学科,它可以有效地解决大规模复杂工程系统的设计优化问题,特别是在航空航天领域有着广阔的应用前景。在我国,多学科设计优化技术的研究还处于起步阶段,尤其在水泵叶轮设计优化方面,传统的设计方法是先进行水力性能设计,然后在此基础上考虑结构学科的设计,按照这种模式得到的结果往往只是局部最优解,而非全局最优。本文以此为契机,探索了多学科设计优化方法的理论和方法。
本文以多学科设计优化方法理论以及MDO方法在水泵叶片设计优化中的应用为核心,主要进行了如下研究:
1、对现有的六种多学科设计优化方法进行了研究,清晰地描述了各种方法的数学模型和算法结构,并给出了结构框架图,分析了各自的适用范围以及优缺点,重点研究了协同优化方法(Collaborative optimzation,CO);对多学科设计优化技术中的优化策略进行了综合研究,给出了选择方法;利用Isight优化平台对某算例进行CO优化,证实多学科设计优化方法的高效可行性;
2、对水泵叶片多学科设计优化中涉及到的两个学科——水力性能和结构,进行学科分析,分别建立两个学科的数学模型;
3、对水泵叶片的水力性能和结构进行协同优化分析,实现了同时满足转轮效率最高和叶片重量最轻的目标。
Multidisciplinary Design Optimization (MDO) technology is a discipline which has been rapidly developed in abroad since 1990s, for which could effectively solve large-scale and complex problems concerning design and optimization of engineering system, which would have a wide application potential especially in the field of aerospace engin- eering. In our country, MDO technology is still in its early stages, particularly in the pump impeller blade’s design and optimization. The traditional design method is firstly to carry out the design of hydraulic performance, then consider the design of the structure of subjects, but the results using above model is only a partial optimal solution rather than the global optimum. The thesis takes it as an opportunity to explore the theory and method of multidisciplinary design optimization.
The thesis takes multidisciplinary design optimization technology and application of the pump impeller blade’s design and optimization as its core, the following research has been carried out:
1、The thesis studies existing six MDO methods and clearly describes the mathematical model and algorithms structure of each method, and given the structure of the framework map, the thesis also analyzes the scope of application as well as advantage and disadvantage of each method. Key study focuses on the Collaborative Optimization,optimize strategy of multidisciplinary design optimization technology adopts comprehensive studies, and giving out selection methods. The thesis makes use of the ISIGHT software to optimize the CO, which confirms efficient a??easibility of multidisciplinary design optimization method.
2、The thesis carries out contributing analysis on hydraulic performance and structural subjects, two disciplines involved in multidisciplinary design optimization of Pump blades, and establish a mathematical model of two disciplines.
3、The thesis adopts collaborative optimization analysis on hydraulic performance and structure of pump impeller blade, and successfully realizes the target of best efficiency of the pump impeller blade, meanwhile has the lightest weight of leave.
本文以多学科设计优化方法理论以及MDO方法在水泵叶片设计优化中的应用为核心,主要进行了如下研究:
1、对现有的六种多学科设计优化方法进行了研究,清晰地描述了各种方法的数学模型和算法结构,并给出了结构框架图,分析了各自的适用范围以及优缺点,重点研究了协同优化方法(Collaborative optimzation,CO);对多学科设计优化技术中的优化策略进行了综合研究,给出了选择方法;利用Isight优化平台对某算例进行CO优化,证实多学科设计优化方法的高效可行性;
2、对水泵叶片多学科设计优化中涉及到的两个学科——水力性能和结构,进行学科分析,分别建立两个学科的数学模型;
3、对水泵叶片的水力性能和结构进行协同优化分析,实现了同时满足转轮效率最高和叶片重量最轻的目标。
Multidisciplinary Design Optimization (MDO) technology is a discipline which has been rapidly developed in abroad since 1990s, for which could effectively solve large-scale and complex problems concerning design and optimization of engineering system, which would have a wide application potential especially in the field of aerospace engin- eering. In our country, MDO technology is still in its early stages, particularly in the pump impeller blade’s design and optimization. The traditional design method is firstly to carry out the design of hydraulic performance, then consider the design of the structure of subjects, but the results using above model is only a partial optimal solution rather than the global optimum. The thesis takes it as an opportunity to explore the theory and method of multidisciplinary design optimization.
The thesis takes multidisciplinary design optimization technology and application of the pump impeller blade’s design and optimization as its core, the following research has been carried out:
1、The thesis studies existing six MDO methods and clearly describes the mathematical model and algorithms structure of each method, and given the structure of the framework map, the thesis also analyzes the scope of application as well as advantage and disadvantage of each method. Key study focuses on the Collaborative Optimization,optimize strategy of multidisciplinary design optimization technology adopts comprehensive studies, and giving out selection methods. The thesis makes use of the ISIGHT software to optimize the CO, which confirms efficient a??easibility of multidisciplinary design optimization method.
2、The thesis carries out contributing analysis on hydraulic performance and structural subjects, two disciplines involved in multidisciplinary design optimization of Pump blades, and establish a mathematical model of two disciplines.
3、The thesis adopts collaborative optimization analysis on hydraulic performance and structure of pump impeller blade, and successfully realizes the target of best efficiency of the pump impeller blade, meanwhile has the lightest weight of leave.
引文
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[3] Sobieszanski-Sobieski J. A Linear Decomposition Method For Optimization Problems-Blueprint for Development. NASA Technical Memorandum 83248, 1982
[4] Sobieszanski-Sobieski J, Haftka R T. Multidisciplinary Aerospace Design Optimization Survey of Recent Development. AIAA Journal, 1990, 28(1):153-160.
[5] AIAA Multidisciplinary Design Optimization Technical Committee . Current State of the Art on Multidisciplinary Design Optimization ( MDO ) . An AIAA White Paper. ISBN 1-56347-021-7, September, 1991.
[6] Giesing J, Brathelemy, J. F. M.,“Surnmary of Industry MDO Applications and Needs”, AIAA-98-4737, ibid.
[7] Srinivas Kodiyalam,Sobieszcanski-Sobieski j. Multidisciplinary Design Optimization-some methds,Framework Requirements And A pplication To Vehicle Design.
[8] Sobieszanski-Sobieski J. The Sensitivity of Complex, Internally Coupled Systems.AIAA Journal, 1990,28(1): 153-160
[9]余雄庆.多学科设计算法及其在飞机设计中的应用研究[D].南京:南京航空航天大学,1999.
[10]陈小前.飞行器总体优化设计理论与应用研究[D].长沙:国防科学技术大学研究生院,2001.10.
[11]胡峪.飞机多学科设计优化及其应用研究[D].西安:西北工业大学,2001.6.
[12]陈琪锋.飞行器分布式协同进化多学科设计优化方法研究[D].长沙:国防科学技术大学研究生院,2003.10.
[13]赵敏,崔维成.多学科设计优化研究应用现状综述[J].中国造船,2007,48(3):63-72.
[14]毛虎平.多学科设计优化技术现状及趋势[J].机械管理开发,2008,23(5):54-56. ??[15] Mike Yukish, Timothy W. Simpson,Requirements on MDO Impsosed by the Undersea Vechicle Conceptual Design Problem, AIAA-2000-4816, 2000.
[16]高丽,曾庆良,范文慧.多学科设计优化研究及发展趋势分析[J].工程设计学报,2007,14(6):429-434.
[17]罗世彬.高超声速分析器机体/发动机一体化及总体多学科设计优化方法研究[D].长沙:国防科学技术大学研究生院,2004.04.
[18]虞跨海.航空发动机涡轮冷却叶片多学科设计优化技术研究[D].西安:西北工业大学,2006.
[19] Giesing Joseph P, Barthelemy J M . A Summary of Industry MDO Application and Needs. An AIAA White Paper, 7th AIAA/USAF/NASS/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998.
[20]王玲花,韩立争,王继东.叶栅稠密度对贯流式水轮进效率影响的研究[J].大电机技术,2006,5 :48-50.
[21]王玲花.叶栅稠密度对双向贯流泵性能影响的分析[J].郑州:水电能源科学.,2003.12,21(4):69-71.
[22]关醒凡.泵的理论与设计[M].北京:机械工业出版社,1987.
[23]张克危.流体机械原理[M].北京:机械工业出版社,2000.5.
[24]刘超.水泵及水泵站[M].北京:科学技术文献出版社,2003.2.
[25]关醒凡.现代泵技术手册[M].北京:宇航出版社,1995.9.
[26] Kroo I M. Multidisciplinary Optimization Methods for A ircraftPrelim inary Design[R], AIAA-94-4325,1994
[27]王小青,王小军.多学科优化技术及其算法[J].导弹与航天运载技术,2007(1).
[28] Jay D.Martin,Timothy W.Simpson;A Methodology to Manage System-level Uncertainty During Conceptual Design.Journal of Mechanical Design,July 2006.
[29]李响.多学科设计优化方法及其在飞行器设计中的应用[D].西安:西北工业大学,2003.
[30]李响,李为吉.飞行器多学科设计优化的三种基本类型及协同设计方法[J].宇航学报,2005,26(6):693-697.
[31]张善杰,唐汉,高瑞章.实用计算方法.南京:南京大学出版社,2000.
[32]李庆杨,莫孜中,祁力群.非线性方程组的数值解法.北京:科学出版社,1987.
[33]李庆杨,王能超,易大义.数值分析.北京:清华大学出版社,2001.
[34]韩永志.涡轮叶片多学科设计优化及近似技术研究[D].西安:西北工业大学,2007.
[35]龚春林.多学科设计优化技术研究[D].西安:西北工业大学,2004.
[36]任利.基于ISIGHT的多学科设计优化平台的研究与实现[D].青岛:山东科技大学,2006.
[37]李响,李为吉.基于序列响应面方法的协同优化算法[J].陕西西安:西北工业大学学报,2003,21(1):79-81.
[38]张学锋,潘光,王鹏.协作优化算法及其在鱼雷总体多学科设计优化中的应用[J].鱼雷技术,2007,15(5):20-23.
[39]古良贤,龚春林,宋寒冰.协作优化方法的计算特性及其应用范围研究[J].空间科学学报,2002年增刊.
[40]谷??宋寒冰,龚春林.协作优化方法及其在飞行器中的应用[J].导弹与制造学报,2002.9.
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