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논문 기본 정보

자료유형
학술저널
저자정보
Chang-Yong Song (Mokpo National University)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제39권 제1호(통권 제182호)
발행연도
2025.2
수록면
23 - 31 (9page)

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초록· 키워드

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Outfitting structures, such as ship radar masts, require a design that considers the vibration and structural strength performance to ensure safe navigation. Nevertheless, reliability analysis considering design uncertainties is required because of the lack of classification rules for such structure design. This study examined the quasi-random sampling process suitable for the design reliability evaluation of radar masts. Neural network modeling was performed for the approximation using quasi-random sampling data regarding the vibration and structural strength performance of radar masts. For statistical reliability analysis, the Sobol sequence method was applied to the sampling process, and the reliability probability with the variation of the sampling number was evaluated. The approximate accuracy of neural network modeling was analyzed according to the variation of sampling number. In the context of research results, setting the quasi-random sampling number to approximately 0.4% of the Monte Carlo Simulation (MCS) sampling number allowed for a practical design reliability evaluation. A sampling number of approximately 0.2% of the MCS sampling number was found to be sufficient to approximate. Through this study, a quasi-random sampling process suitable for statistical reliability analysis of radar mast structures was determined, and a neural network model with high approximate accuracy was generated.

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ABSTRACT
1. Introduction
2. Theoretical Background
3. Statistical Reliability Analysis and Approximation Results
4. Conclusions
References

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