Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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Optimization of the Deep-sea Pressure Vessel by Reliability analysis

신뢰성 해석을 이용한 심해용 내압용기의 최적화

  • JOUNG TAE-HWAN (Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • HO IN-SIKN (Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • LEE JAE-HWAN (Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • HAN SEUNG-HO (Korea Institute of Machinery & Materials)
  • 정태환 (충남대학교 선박해양공학과 대학원) ;
  • 노인식 (충남대학교 선박해양공학과) ;
  • 이재환 (충남대학교 선박해양공학과) ;
  • 한승호 (한국기계연구원 구조연구부 구조안전그룹)
  • Published : 2004.05.01
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Abstract

In order to consider statistical properties of probability variables used in the structural analysis, the conventional approach using the safety factor based on past experience usually estimated the safety of a structure. Also, the real structures could only be analyzed with the error in estimation of loads, material characters and the dimensions of the members. But the errors should be considered systematically in the structural analysis. In this paper, we estimated the probability of failure of the pressure vessel. And also, this paper presents sensitivity values of the random variable. Finally, we show that reliability index and probability of failure can present the tolerance limit of dimension of randam variables.

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