CAJ | 학술논문

对机体结构声发射数据的表征参数进行分析，建立了数据处理的统计模型，并运用该模型分析了某型飞机全机疲劳试验和某现役飞机随机机载声发射监测数据，提出了结构损伤判据，可供实际应用。
대궤체결구성발사수거적표정삼수진행분석，건립료수거처리적통계모형，병운용해모형분석료모형비궤전궤피로시험화모현역비궤수궤궤재성발사감측수거，제출료결구손상판거，가공실제응용。
AE technique can be used to monitor the formation and development of fatigue cracks in steel structure dynamically and continuously. In this paper, a mathematical statistical model is established by analyzing characteristic parameters of AE data from aircraft. By using it, the authors make a study of AE data from an aircraft during its fatigue test and a fighter structure during its flight. On this basis, a practical damage standard is advanced, which can be applied to judge whether cracks are being formed or developed in an aircraft under given probability. At the end of the paper, the research orientations are given to the establishment of a more general standard.