Statistical Analysis for NDI Results of Aircraft Engine Component for Determining Crack Initiation Period

균열발생시기 결정을 위한 항공기 엔진 구성품의 비파괴검사 결과에 대한 통계적 분석

  • 최재만 (공군 군용항공기 감항인증센터) ;
  • 권영한 (공군 항공기술연구소) ;
  • 최환서 (공군 항공기술연구소) ;
  • 양승효 (공군 항공기술연구소) ;
  • 우상욱 (공군 항공기술연구소) ;
  • 조순미 (공군 항공기술연구소) ;
  • 이승주 (공군 군수사령부 군수관리단)
  • Published : 2009.12.01


In this study statistical analysis was performed for NDI(Non-Destructive Inspection) results of F100 engine front seal support assembly. NDI results can be statistically considered as Quantal Response Data. It is found that the suitable probability distribution to the failure data is normal distribution through MLE(Maximum Likelihood Estimation) of the Quantal Response Data. Moreover, Cumulative Distribution Function, failure rate function and B-Life are calculated on the supposed distribution.


Quantal Response Data;Maximum Likelihood Estimation;Bathtub Curve;Preventive Maintenance;Corrective Maintenance


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