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基于网格参数化变形的单级涡轮多学科可靠性设计优化

李磊 李宏林 杨子龙 孙守义 杨未柱 康家磊

李磊, 李宏林, 杨子龙, 孙守义, 杨未柱, 康家磊. 基于网格参数化变形的单级涡轮多学科可靠性设计优化[J]. 航空动力学报, 2019, 34(8): 1764-1772. doi: 10.13224/j.cnki.jasp.2019.08.016
引用本文: 李磊, 李宏林, 杨子龙, 孙守义, 杨未柱, 康家磊. 基于网格参数化变形的单级涡轮多学科可靠性设计优化[J]. 航空动力学报, 2019, 34(8): 1764-1772. doi: 10.13224/j.cnki.jasp.2019.08.016
Reliability based multidisciplinary design optimization of single turbine stage based on parameterized mesh deformation[J]. Journal of Aerospace Power, 2019, 34(8): 1764-1772. doi: 10.13224/j.cnki.jasp.2019.08.016
Citation: Reliability based multidisciplinary design optimization of single turbine stage based on parameterized mesh deformation[J]. Journal of Aerospace Power, 2019, 34(8): 1764-1772. doi: 10.13224/j.cnki.jasp.2019.08.016

基于网格参数化变形的单级涡轮多学科可靠性设计优化

doi: 10.13224/j.cnki.jasp.2019.08.016
基金项目: 国家自然科学基金(51575444); 航空动力基金(6141B090319); 陕西省自然科学基础研究计划(2018JM5173)

Reliability based multidisciplinary design optimization of single turbine stage based on parameterized mesh deformation

  • 摘要: 基于自由变形技术发展了一种可以协调实现流场、结构分析网格参数化变形的方法,并实现单级涡轮的多学科可靠性设计优化。针对流场分析网格展向积叠的特征,将三维网格变形转化为不同叶高二维截面的网格变形;根据二维流场分析网格的拓扑结构,设计二维控制面,基于叶型设计参数建立叶型控制点、其他控制点伴随叶型控制点移动,实现了网格的参数化变形,避免了网格畸变、提高了网格变形的质量;不同叶高的二维控制面组成控制体,实现三维流场分析网格的参数化变形。采用相同的控制体进行结构分析网格的变形,实现了耦合界面网格协调变形。基于Kriging代理模型进行单级涡轮的多学科可靠性优化,在满足可靠性约束的情况下效率提高4.97%、寿命提高40.86%,证明了方法的有效性。

     

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出版历程
  • 收稿日期:  2019-01-08
  • 刊出日期:  2019-08-28

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