| 单晶涡轮叶片晶体取向优化设计 |
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| 引用本文： | 卿华,江和甫,温卫东,吴长波,胡仁高,覃志贤,孙景国.单晶涡轮叶片晶体取向优化设计[J].航空动力学报,2008,23(12):2184-2189. |
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| 作者姓名： | 卿华 江和甫 温卫东 吴长波 胡仁高 覃志贤 孙景国 |
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| 作者单位： | 中国燃气涡轮研究院;南京航空航天大学能源与动力学院; |
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| 摘 要： | 采用损伤型晶体蠕变滑移本构模型,对具体工况下某发动机单晶涡轮叶片进行蠕变变形分析.应用多学科优化设计理论采用自适应模拟退火(ASA)算法和非线性序列二次规划(NLSQP)优化算法对单晶叶片晶体取向进行优化设计.叶片分析结果表明:叶片纵向的晶体取向偏角和叶片横向随机取向的晶向角,对单晶叶片的叶尖蠕变变形具有较大的影响.对随机晶向角进行一维优化,当晶向角为76.2°时,叶片具有最小的叶尖径向位移0.077 74 mm,优化幅度为2.0%;叶片纵向偏差角0°时的叶尖径向位移为0.079 29mm,10°时的叶尖最大位移为0.093 52 mm,最大变化幅度为17.9%.
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| 关 键 词： | 镍基单晶 晶体取向 涡轮叶片 优化设计 损伤 |
| 收稿时间： | 2007/10/15 0:00:00 |
| 修稿时间： | 2008/10/30 0:00:00 |
Optimization design of crystallographic orientation in single crystal turbine blade |
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| QING Hu,JIANG He-fu,WEN Wei-dong,WU Chang-bo,HU Ren-gao,QIN Zhi-xian and SUN Jing-guo.Optimization design of crystallographic orientation in single crystal turbine blade[J].Journal of Aerospace Power,2008,23(12):2184-2189. |
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| Authors: | QING Hu JIANG He-fu WEN Wei-dong WU Chang-bo HU Ren-gao QIN Zhi-xian and SUN Jing-guo |
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| Institution: | Gas Turbine Establishment of China, Chengdu 610500, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Gas Turbine Establishment of China, Chengdu 610500, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Gas Turbine Establishment of China, Chengdu 610500, China;Gas Turbine Establishment of China, Chengdu 610500, China;Gas Turbine Establishment of China, Chengdu 610500, China;Gas Turbine Establishment of China, Chengdu 610500, China |
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| Abstract: | A two-damage-variable creep constitutive model was used to analyze the creep deformation of nickel-based single crystal turbine blades.Based on multidisciplinary design optimization theory,the crystallographic orientation optimization was performed by ASA(adaptive simulation annealing) and NLSQP(non-linear sequential quadratic programming) algorithm.The analysis results show that controlled orientation and uncontrolled orientation have profound influence on creep deformation of single crystal turbine blades... |
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| Keywords: | nickel-based single crystal crystallographic orientation turbine blade optimization design damage |
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