基于试验设计及支持向量机的向心叶轮结构优化设计方法

米栋; 尹泽勇; 钱正明; 张志佾; 冯立勇

基于试验设计及支持向量机的向心叶轮结构优化设计方法

1.
北京航空航天大学能源动力工程学院,北京 100191
2.
中国航空工业集团航空动力机械研究所,湖南株洲 412002

基金项目: 国家高技术研究发展计划(2006AA04Z418)

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出版历程
- 收稿日期: 2012-05-18
- 刊出日期: 2012-10-28

Structure optimization method of radial inflow impeller based on design of experiment and support vector machine

1.
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics,Beijing 100191,China
2.
Aviation Powerplant Research Institute, Aviation Industry Corporation of China,Zhuzhou Hunan 412002,China

摘要

摘要: 针对向心叶轮结构优化设计耗时长的难点,研究并采用了2类关键技术:其一是利用试验设计技术从大量的轮盘结构尺寸中挑选出重要尺寸作为优化设计变量,以减小优化问题规模;其二是利用支持向量机技术建立向心叶轮强度及振动分析的代理模型,以缩短分析时间.在以上研究工作的基础上建立了1种快速高效的向心叶轮结构优化设计方法.随后的1个算例表明:优化后的叶轮寿命提高4倍,优化设计时间为传统方法的1/27,具有良好的工程应用前景.
- 向心叶轮 /
- 试验设计 /
- 支持向量机 /
- 强度振动分析 /
- 结构优化设计
Abstract: The investigation of two critical techniques was conducted to shorten the structure optimization time of a radial inflow impeller. Firstly, in order to reduce optimization scale, the technique of design of experiment (DOE) was used to choose the critical ones from a large number of disk structure dimensions as the optimization design variables. Secondly, in order to lessen analysis time, the technique of support vector machine (SVM) was used to establish surrogate model for stress and vibration analysis of the radial inflow impeller. Based on the investigation above, a structure optimization method of radial inflow impeller was presented, which was low time-consuming. It was demonstrated by one example that the life of optimized impeller increased almost four times and optimization time was one twenty-seventh of that of traditional optimization method.
- radial inflow impeller /
- design of experiment /
- support vector machine /
- stress and vibration analysis /
- structure optimization

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参考文献(15)

[1]	Rodgers C,McDonald C F.Small recuperated gas turbine APU concept to abate concern about emissions,high fuel cost,and noise .GT2007-27913,2007.
[2]	Yang G,Park D,Kim C T,et al.Hydrogen peroxide-based gas generator design and performance testing as an aircraft emergency power unit[J].ASME J.Eng.Gas Turbines and Power,2010,132(11):114504.1-114504.6.
[3]	谢永慧,韩永强,刘象拯,等.透平机械叶轮叶片三维参数化造型及六面体网格生成方法研究[J] .机械强度,2007,29(5) :795-799. XIE Yonghui,HAN Yongqiang,LIU Xiangzheng,et al.Study on three dimensional parametric feature modeling method and generation of hexahedron mesh for impeller and blade of turbomachine[J].Journal of Mechanical Strength,2007,29(5):795-799.(in Chinese)
[4]	骆天舒,戴韧.燃气透平向心叶轮模态分析[J].热力透平,2007,20(3):429-433. LUO Tianshu,DAI Ren.Modal analysis of radial inflow impeller of a gas turbine[J].Thermal Turbine,2007,20(3):429-433.(in Chinese)
[5]	骆天舒,戴韧.整体式向心叶轮模态的有限元分析[J].内燃机工程,2005,26(1):77-80. LUO Tianshu,DAI Ren.Modal analysis of Integrated radial inflow impeller with finite element method[J].Chinese Internal Combustion Engine Engineering,2005,26(1):77-80.(in Chinese)
[6]	丁铁华.基于有限元法的离心风机叶轮强度分析与结构优化[J].风机技术,2011(6):14-17. DING Tiehua.Intensity analysis and structure optimization of impellers in centrifugal fans based on finite element method[J].Compressor,Blower & Fan Technology,2011(6):14-17.(in Chinese)
[7]	蔡显新,尹泽勇,高德平.整体离心叶轮的形状优化设计[J].航空动力学报,2000,15(2):219-221. CAI Xianxin,YIN Zeyong,GAO Deping.Shape optimization of integrated centrifugal impeller[J].Journal of Aerospace Power,2000,15(2):219-221.(in Chinese)
[8]	Casey M.An optimization technique for radial Compressor impellers //ASME Turbo Expo 2008:Power for Land,Sea and Air.Germany:International Gas Turbine Institute,2008:2401-2411.
[9]	AL-Zubaidy S.Preliminary design of centrifugal impellers using optimization techniques[J].Journal of Fluids Engineering,1994,116(2):310-315.
[10]	Krueger S.Application of automated optimisation to pump impeller design //ASME-JSME-KSME 2011 Joint Fluids Engineering Conference (AJK2011).Japan:Fluids Engineering Division,2011:437-444.
[11]	郑赟韬,蔡国飙,尘军.用于概念设计的离心泵叶轮多目标优化[J].航空动力学报,2007,22(9):1554-1559. ZHENG Yuntao,CAI Guobiao,CHEN Jun.Multi-objective optimization of centrifugal pump impeller for conceptual design[J].Journal of Aerospace Power,2007,22(9):1554-1559.(in Chinese)
[12]	席兵,杨春信.遗传算法在离心压气机叶轮结构优化中的应用[J].热能动力工程,2001,92(16):182-185. XI Bing,YANG Chunxin.The use of a genetic algorithm for the structure optimization of a centrifugal compressor impeller[J].Journal of Engineering for Thermal Energy and Power,2001,92(16):182-185.(in Chinese)
[13]	LU Jinling,XI Guang.Optimization methodon impeller meridional contour and 3-D blade[J].Chinese Journal of Mechanical Engineering,2007,20(6):43-49.
[14]	Jang C M,Choi K R.Optimal design of splitters attached to turbo blower impeller by RSM[J].Journal of Thermal Science,2012,21(3):215-222.
[15]	Deb K,Pratab A,Agrawal S,et al.A fast and elitist multi2 objective genetic algorithm:N SGA-[J].IEEE Trans on Evolu tionary Computation,2002,6(2):182-197.(in Chinese)