中国电机工程学报2025，Vol.45Issue(7)：2670-2679,中插18,11.DOI:10.13334/j.0258-8013.pcsee.232420
压气机叶片-轮盘的低周疲劳寿命可靠性设计优化
Reliability-based Design Optimization of Compressor Blade Disc Low Cycle Fatigue Life
摘要
Abstract
To ensure the reliability of gas turbine compressors under multi-source uncertainties,a composite framework for the reliability-based design optimization(RBDO)of the compressor blade disc is established.For the problem with multi-source uncertainties,a method that integrates a two-stage active learning Kriging model and the decoupled approach is proposed.The proposed method adaptively selects points to construct the surrogate model during the optimization process and performs RBDO in two stages.The proposed method improves the efficiency of RBDO while maintaining accuracy.Meanwhile,an active learning strategy based on improved constrained boundary double-point sampling is proposed.The computational cost is further reduced through the design-driven local approximation strategy and the double-point enrichment method.The superiority of the method is verified by a numerical example of a short column.The RBDO is carried out for a compressor blade disc while considering the low cycle fatigue.The results indicate that the proposed method significantly improves the average low cycle fatigue life and the reliability of the model.关键词
压气机/叶片轮盘/流固耦合/低周疲劳/Kriging模型/可靠性分析/设计优化Key words
compressor/blade disc/fluid structure interaction/low cycle fatigue/Kriging model/reliability analysis/design optimization分类
能源科技引用本文复制引用
李金星,李国嘉,唐勃,谢永慧..压气机叶片-轮盘的低周疲劳寿命可靠性设计优化[J].中国电机工程学报,2025,45(7):2670-2679,中插18,11.基金项目
国家科技重大专项(J2019-IV-0022-0090) （J2019-IV-0022-0090）
中央高校基本科研业务费专项资金项目(xtr072021002).National Science and Technology Major Project(J2019-IV-0022-0090) （xtr072021002）
Fundamental Research Funds for the Central Universities(xtr072021002). （xtr072021002）
