涡扇发动机涡轮后框架结构/材料一体化优化设计方法
Concurrent structural and material optimization of turbine frame in turbo-fan engine
-
摘要: 基于传统结构优化设计方法,综合考虑结构参数和材料性能对涡扇发动机涡轮后框架性能的影响,提出涡轮后框架结构/材料一体化优化设计方法.将原设计问题分解为结构级优化和材料级优化,分别应用可行方向法和并行遗传算法进行求解.应用C语言开发了分布式并行优化设计平台.应用该平台对某型涡扇发动机涡轮后框架进行结构/材料一体化优化设计,得到最佳材料组合和结构参数.优化结果表明:与单一材料的结构优化方法相比,提出的结构/材料一体化优化方法进一步减少了结构的质量,算例中最优选材比最差选材质量减少29.0%.
-
关键词:
- 涡扇发动机 /
- 涡轮后框架 /
- 结构/材料一体化优化 /
- 分布式计算 /
- 并行遗传算法
Abstract: Based on the traditional structural optimization method,a structural/material optimization method for turbine frame was developed in consideration of the effects of structural parameters and properties of materials on the performance of turbine frame.The original optimization problem was decomposed into structure level and the material level.The first one was solved by feasible direction method while the second problem was solved by parallel genetic algorithms.A distributed computer system was designed by C language and employed to obtain the optimal material combination and structural parameters of one typical turbine frame.The result shows that the structure/material optimization may obtain better design than structure optimization.In the examples,compared with the worst material combination,the mass of the optimal material combination is reduced by 29.0%. -
[1] 李立君,尹泽勇,乔渭阳.基于多目标遗传算法的航空发动机总体性能优化设计[J].航空动力学报,2006,21(1):13-18. LI Lijun,YIN Zeyong,QIAO Weiyang.Performance optimal design of aircraft engine based on multi-objective genetic algorithms[J].Journal of Aerospace Power,2006,21(1):13-18.(in Chinese) [2] 李秋红,孙健国.基于遗传算法的航空发动机状态变量模型建立方法[J].航空动力学报,2006,21(2):427-431. LI Qiuhong,SUN Jianguo.Aero-engine state variable modeling based on the genetic algorithm[J].Journal of Aerospace Power,2006,21(2):427-431.(in Chinese) [3] 郭海丁,路志峰.基于BP神经网络和遗传算法的结构优化设计[J].航空动力学报,2003,18(2):216-220. GUO Haiding,LU Zhifeng.Structure design optimization based on BP-neural networks and genetic algorithms[J].Journal of Aerospace Power,2003,18(2):216-220.(in Chinese) [4] 杨剑秋,王延荣.空心风扇叶片结构优化设计方法及程序实现[J].航空动力学报,2012,27(1):97-103. YANG Jianqiu,WANG Yanrong.Structural design optimization method and program implementation for a hollow fan blade[J].Journal of Aerospace Power,2012,27(1):97-103.(in Chinese) [5] 王营,余朝蓬.航空发动机涡轮盘结构优化设计[J].机械设计与制造,2010(5):4-6. WANG Ying,YU Zhaopeng.Optimization design for the turbine disk of a gas engine[J]Machinery Design & Manufacture,2010(5):4-6.(in Chinese) [6] 雷先华,江和甫,王旅生.整体压气机转子结构优化设计[J].航空动力学报,1997,12(1):40-42. LEI Xianhua,JIAN Hefu,WANG Lüsheng.Structural optimization of an integrated compressir rotor[J].Journal of Aerospace Power,1997,12(1):40-42.(in Chinese) [7] 韩永志,高行山,李立州,等.基于Kriging模型的涡轮叶片多学科设计优化[J].航空动力学报,2007,22(7):1055-1059. HAN Yongzhi,GAO Hangshan,LI Lizhou,et al.Kriging model-based multidisciplinary design optimization for turbine blade[J].Journal of Aerospace Power,2007,22(7):1055-1059.(in Chinese) [8] 陈飙松,张洪武,亢战,等.载人航天器结构优化设计的数值方法[J].载人航天,2009,15(4):26-32. CHEN Biaosong,ZHANG Hongwu,KANG Zhan,et al.Numerical methods of design optimization for manned spacecraft structures[J].Manned Spaceflight,2009,15(4):26-32.(in Chinese) [9] Liu B,Haftka R T,Akgün M A.Two-level composite wing structural optimization using response surfaces[J].Structural and Multidisciplinary Optimization,2000,20(2):87-96. [10] Imai K.Structural optimization to include material selection[J].International Journal for Numerical Methods in Engineering,1983,19(2):217-235. [11] Sepulveda A E.Optimal material selection using branch and bound techniques[J].AIAA Journal,1995,33(2):340-347. [12] 崔新涛,毕凤荣,王树新,等.桁架材料和结构组合多目标优化设计[J].天津大学学报,2007,40(4):499-502. CUI Xintao,BI Fengrong,WANG Shuxin,et al.Multi-objective optimal design of truss with integrated structure and material optimization[J].Journal of Tianjin University, 2007,40(4):499-50.(in Chinese) [13] 孙靖民.机械优化设计[M].北京:机械工业出版社,2003. [14] 周明,孙树栋.遗传算法原理及应用[M].北京:国防工业出版社,1999. [15] 《航空发动机设计用材料数据手册》编委会.航空发动机设计用材料数据手册[M].北京:航空工业出版社,2010.
点击查看大图
计量
- 文章访问数: 1462
- HTML浏览量: 4
- PDF量: 1195
- 被引次数: 0