谢广平,武颖娜,杨锐.航空发动机涡轮叶片的失效分析与检测技术[J].民用飞机设计与研究,2019,(3):15-26
航空发动机涡轮叶片的失效分析与检测技术
  
DOI:10.19416/j.cnki.1674-9804.2019.03.003
中文关键词:涡轮叶片  失效机理  寿命预测  检测技术
英文关键词:turbine blade  failure mechanism  life prediction  inspection technology
基金项目:
作者单位
谢广平,武颖娜,杨锐 上海科技大学, 上海 201210 
中文摘要:通过分析航空发动机涡轮叶片的失效机理与寿命预测模型,从理论上阐述了导致叶片失效的关键因素。并针对影响叶片寿命的关键参数系统地阐述了目前的检测技术和发展趋势,主要包括叶片制造过程中叶片轮廓、进出气边轮廓、气膜孔、表面质量的检测,以及叶片服役后涂层质量、蠕变伸长量的离线和在线检测。检测技术既是叶片制造一致性的保障,同时也为失效机理和寿命预测提供实验测量数据,使预测模型更精准。
英文摘要:By analyzing the failure mechanisms and life prediction models of turbine blades of aircraft engine, the key factors that lead to turbine blade failure were identified. The status and trends of dimension measurement technology were reviewed based on discussions of the key parameters relevant to blade life, including evaluation of the profile of blade during manufacturing, profile of leading and trailing edges, film cooling holes, and blade surface quality. The off-line and real-time evaluations of surface coating quality and creep strain during service were also discussed. Measurement technology is shown to be critical in providing data for improving life prediction models as well as in ensuring dimensional consistency during manufacturing.
点击次数: 32
下载次数: 48
查看全文  查看/发表评论  下载PDF阅读器