【摘要】 介绍了涡轮榫接结构疲劳寿命评估技术的研究现状，分别从多场载荷分析、裂纹萌生寿命评估、裂纹扩展模拟和试验技术等方面探讨了现有研究的进展、不足以及发展趋势，重点论述了涡轮榫接结构使用寿命和损伤容限的评估方法。结果表明：现有的分析和试验方法能基本实现涡轮榫接的疲劳寿命评估，但由于各种局限性，工程适用性亟待提高，仍需稳健的载荷降阶分析方法、基于物理机制和数据驱动的寿命评估方法、载荷历程相关的裂纹扩展寿命评估方法和复杂热力环境下的试验技术，从而建立先进航空发动机涡轮榫接结构疲劳寿命评估及验证体系。更多还原

【Abstract】 Research related to fatigue life assessment of turbine attachment was introduced. The progress, shortcomings, and development trends of existing research were discussed in terms of multi-field load analysis, crack initiation life assessment, crack propagation analysis, and test techniques, respectively, focusing on the methods for assessing the service life and damage tolerance of turbine attachment. The results show that the existing analysis and test methods can basically achieve the fatigue life assessment of turbine attachment, but due to various limitations, the engineering applicability needs to be improved. It is necessary to conduct research on robust reduction order methods for load analysis, life assessment methods based on physical mechanisms and data-driven, crack growth simulation under variant loading amplitude, and test techniques in complex thermomechanical environments, and to develop a system to support the fatigue life assessment and validation of turbine attachment in advanced aero-engine.更多还原