基于CSR-H规范的大型矿砂船艏货舱结构强度分析改进方法

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英文篇名：A Modified Method for Direct Strength Analysis of Foremost Cargo Hold of Very Large Ore Carrier Based on Harmonized Common Structure Rules 作者：杨奇 ; 薛鸿祥 ; 刘洋 ; 蔡忠云 ; 唐文勇 英文作者：YANG Qi;XUE Hong-xiang;LIU Yang;CAI Zhong-yun;TANG Wen-yong;State Key Laboratory of Ocean Engineering;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration;Rules & Technology Center,China Classification Society; 关键词：共同结构规范 ; 大型矿砂船 ; 艏货舱 ; 结构强度分析 ; 船体梁载荷 英文关键词：CSR-H;;very large ore carrier;;foremost cargo hold;;direct strength analysis;;hull girder loads 中文刊名：WHZC 英文刊名：Ship & Ocean Engineering 机构：上海交通大学海洋工程国家重点实验室;上海交通大学高新船舶与深海开发装备协同创新中心;中国船级社规范与技术中心; 出版日期：2017-04-27 09:29 出版单位：船海工程 年：2017 期：v.46;No.238 基金：上海市青年科技启明星计划(16QA1402300) 语种：中文; 页：WHZC201702003 页数：5 CN：02 ISSN：42-1645/U 分类号：17-21

摘要

基于CSR-H规范要求对大型矿砂船艏货舱结构进行有限元直接计算,实船分析发现,在某些压载工况条件下,按CSR-H要求进行剪力弯矩调整时,由于局部修正弯矩过大将造成船体艏部上甲板等结构局部大变形现象。结合大型矿砂船舱室布置、外载荷特点以及剪力弯矩调整计算原理,分析相关原因,提出改进方法,可有效避免矿砂船艏货舱强度分析中因局部结构大变形而造成计算结果失真的问题。
        The direct strength analysis of VLCO foremost cargo hold was conducted according to CSR-H requirements. In some ballast conditions,local large deformation was found on bow upper deck and other bow structures,due to the vertical bending moment is too large in the CSR-H hull girder loads adjustment. Based on the cabin layout of VLOC,characteristics of external loads and principles of hull girder loads adjustment,the reason of the large deformation was analyzed. A modified method was proposed,which can effectively avoid distortions of the calculation results caused by local large deformation in the strength analysis.

引文

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