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Dong-Myung Bae 《船舶与海洋工程学报》2012,11(2):184-190
Fatigue cracks and fatigue damage have been important issues for ships and offshore structures for a long time.However,in the last decade,with the introduction of higher tensile steel in hull structures and increasingly large ship dimensions,the greater attention should be paid to fatigue problems.Most research focuses on how to more easily access the fatigue strength of ships.Also,the major classification societies have already released their fatigue assessment notes.However,due to the complexity of factors influencing fatigue performances,such as wave load and pressure from cargo,the combination of different stress components,stress on concentration of local structure details,means stress,and the corrosive environments,there are different specifications with varying classification societies,leading to the different results from different fatigue assessment methods.This paper established the Det Norske Veritas(DNV) classification notes "fatigue assessment of ship structures" that explains the process of fatigue assessment and simplified methods.Finally,a fatigue analysis was performed by use data of a real ship and the reliability of the result was assessed. 相似文献
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新加坡地铁公司作为地铁行业内运营方面最为安全的公司之一,在有效地管理日常的HSE(健康、安全、环境)业务,促进公司内部各部门之间的协作等方面,进行大量有益的实践,将自身的HSE管理体系和方式与DNV GL(挪威船级社)的QHSE综合管理信息系统(synergi life)进行有机融合,探索出一条借助于信息化手段提高日常HSE管理的新方法,从而实现公司HSE日常管理的信息化和高效化.新加坡地铁公司的HSE信息化管理新方式对轨道交通行业可以起到很好的示范作用.对地铁运营中的事故及安全隐患进行说明,介绍新加坡地铁公司的HSE管理信息化,并对失效和延误及事故管理作重点介绍,将其与传统的事故管理进行对比,最后提出针对城市轨道交通行业日常HSE管理信息化的思考,以期对国内地铁行业的HSE管理提供帮助. 相似文献
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