Reliability based multidisciplinary design optimization of cooling turbine blade considering uncertainty data statistics

Lei Li, Huan Wan, Wenjing Gao, Fujuan Tong, Honglin Li

科研成果: 期刊稿件文章同行评审

71 引用 (Scopus)

摘要

Considering the coupling among aerodynamic, heat transfer and strength, a reliability based multidisciplinary design optimization method for cooling turbine blade is introduced. Multidisciplinary analysis of cooling turbine blade is carried out by sequential conjugated heat transfer analysis and strength analysis with temperature and pressure interpolation. Uncertainty data including the blade wall, rib thickness, elasticity Modulus and rotation speed is collected. Data statistics display the probability models of uncertainty data follow three-parameter Weibull distribution. The thickness of blade wall, thickness and height of ribs are chosen as design variables. Kriging surrogate model is introduced to reduce time-consuming multidisciplinary reliability analysis in RBMDO loop. The reliability based multidisciplinary design optimization of a cooling turbine blade is carried out. Optimization results shows that the RBMDO method proposed in this work improves the performance of cooling turbine blade availably.

源语言英语
页(从-至)659-673
页数15
期刊Structural and Multidisciplinary Optimization
59
2
DOI
出版状态已出版 - 15 2月 2019

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