| 自升式平台整体结构的三维系统可靠性分析 |
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| 引用本文： | 余建星,周宝勇,郭君,晋文超,周清基,马维林.自升式平台整体结构的三维系统可靠性分析[J].船舶工程,2011,33(2):74-76,87. |
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| 作者姓名： | 余建星 周宝勇 郭君 晋文超 周清基 马维林 |
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| 作者单位： | 天津大学港口与海洋工程教育部天津市重点实验室,天津,300072;中国船舶重工集团公司第705研究所,陕西,710075 |
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| 基金项目： | 国家高技术研究发展“863计划”资助项目(2008AA09Z307); 国家自然科学基金创新研究群体科学基金资助项目(51021004); 上海交通大学海洋工程国家重点实验室研究基金资助项目. |
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| 摘 要： | 为使自升式平台整体结构三维系统可靠性计算模型更加贴近实际结构,建立基于空间刚架结构和空间薄壁结构两种系统可靠性分析模型.以三维梁元模拟空间刚架结构,以杂交梁元和加筋板格元模拟空间薄壁结构,并推导加筋板格元的修正刚度矩阵和反向结点力向量,弥补了计算反向结点力向量时采用等剪应力矩形元替代加筋板格元的不足,最后运用改进的分支限界法搜索主要失效路径并结合PNET法计算系统失效概率,通过实例对自存和作业等工况下平台系统可靠性进行计算,对比两种系统可靠性模型的优缺点,给出工程设计建议.
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| 关 键 词： | 自升式平台 系统可靠性 加筋板格元 空间薄壁结构 |
Three-dimensional System Reliability Research of Overall Structure for Jack-up Platform |
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| YU Jian-xing,ZHOU Bao-yong,GUO Jun,JIN Wen-chao,ZHOU Qing-ji,MA Wei-lin.Three-dimensional System Reliability Research of Overall Structure for Jack-up Platform[J].Ship Engineering,2011,33(2):74-76,87. |
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| Authors: | YU Jian-xing ZHOU Bao-yong GUO Jun JIN Wen-chao ZHOU Qing-ji MA Wei-lin |
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| Institution: | YU Jian-xing~1,ZHOU Bao-yong~1,GUO Jun~2,JIN Wen-chao~1,ZHOU Qing-ji~1,MA Wei-lin~1 (1 Key Lab of Port and Ocean Engineering,Ministry of Education and Tianjin,Tianjin University,Tianjin 300072,China,2.No.705 Research Institute,CSIC,Shanxi 350001,China) |
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| Abstract: | For the accurate calculation of three-dimensional system reliability of overall structure for jack-up platform,two models based on space frame structure and thin-walled space structure are established.Space frame structure model is established by three-dimension beam,and thin-walled space structure model is established by adopting hybrid girder element and SP element.Formulae of reduced member stiffness matrix and opposite sign of equivalent nodal force are educed,to make up accuracy of calculation of oppos... |
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| Keywords: | jack-up platform system reliability SP element thin-walled space structure |
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