Earticle

초록

영어

Aircraft are among the most effective war weapon systems. There are many efforts to improve their service life and to ensure the safety of their structure. In the past, the deterministic approach, such as durability and damage tolerance, has been mainly used to predict the service life of an aircraft structure using fixed parameters (the initial flaw, material property, etc). The most important parameter, however, may not be the certain statistical factor for assessing the IFQ (Initial Fatigue Quality). Probabilistic analysis has recently been adopted by advanced countries as a new approach to enhancing flight safety in aerospace fields. Probabilistic analysis based on fracture mechanics can especially predict such service life and perform risk assessment using the probability of failure. In this paper, the paradigm of aircraft structural life management is reviewed and the parameter used in probabilistic fracture mechanics is analyzed. Furthermore, the new process of probabilistic risk assessment is proposed to evaluate the statistical factor. In the future, the proposed process can be used to establish aircraft maintenance policies such as RCM (Reliability-Centered Maintenance) and CBM (Condition-Based Maintenance). Aircraft structure, Service life, Fracture mechanics, Probability of failure, Probabilistic risk assessment

목차

Abstract
 1. 서론
 2. 이론적 고찰
  2.1 항공기 수명관리
  2.2 확률론적 파괴역학
 3. 항공기체 구조 건전성을 위한 확률론적 위험도평가 프로세스
  3.1 위험도평가
  3.2 파손확률(POF)
  3.3 확률론적 위험도평가 프로세스
 4. 결론
 참고문헌

키워드

저자

• 김근원 [ Kim, Keun Won | 국방대학교 국방과학학과, 박사과정 ]
• 신기수 [ Shin, Ki Su | 국방대학교 국방과학학과, 교수 ] 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국방위산업학회지 [Journal of the Korean Association of Defense Industry Studies]

• 간기

  연3회

• pISSN

  1738-6144

• 수록기간

  2000~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 390 DDC 355