인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
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개인구독
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
Purpose: This study proposes a log-normal failure intensity model for repairable systems exhibiting upside-down bathtub-shaped failure intensity functions. The maximum likelihood estimation method for estimating the model parameters is presented.
Methods: The proposed log-normal model is formulated using the hazard function of the log-normal distribution. The failure occurrence process of the repairable system is assumed to follow a non-homogeneous Poisson process (NHPP).
Results: A case study of Weapon System A is conducted to demonstrate that the proposed log-normal model is effective in explaining the failure intensity behavior of Weapon System A. A comparative study with other existing upside-down bathtub-shaped failure intensity models, based on the mean squared error (MSE) criterion, indicates that the proposed log-normal failure intensity model provides an appropriate representation of the failure intensity of Weapon System A.
Conclusion: The proposed log-normal failure intensity model is suitable for modeling repairable systems with upside-down bathtub-shaped failure intensity characteristics.
Methods: The proposed log-normal model is formulated using the hazard function of the log-normal distribution. The failure occurrence process of the repairable system is assumed to follow a non-homogeneous Poisson process (NHPP).
Results: A case study of Weapon System A is conducted to demonstrate that the proposed log-normal model is effective in explaining the failure intensity behavior of Weapon System A. A comparative study with other existing upside-down bathtub-shaped failure intensity models, based on the mean squared error (MSE) criterion, indicates that the proposed log-normal failure intensity model provides an appropriate representation of the failure intensity of Weapon System A.
Conclusion: The proposed log-normal failure intensity model is suitable for modeling repairable systems with upside-down bathtub-shaped failure intensity characteristics.
본문·목차
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