| 考虑砰击作用时舰船甲板的可靠性分析 |
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| 引用本文： | 张婧,施兴华,徐定海,王善. 考虑砰击作用时舰船甲板的可靠性分析[J]. 兵工学报, 2009, 30(12): 1668-1673 |
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| 作者姓名： | 张婧 施兴华 徐定海 王善 |
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| 作者单位： | 江苏科技大学,船舶与海洋工程学院,江苏,镇江,212003;哈尔滨工程大学,建筑工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金-中国工程物理研究院联合基金(NSAF基金)，江苏省重点实验室资助项目 |
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| 摘 要： | 针对甲板结构受压屈曲的失效模式，提出一种砰击载荷作用下舰船结构的可靠性分析方法。基于随机过程理论，计入砰击载荷和波浪载荷幅值的相关性，建立了舰船在砰击、波浪及静水载荷联合作用下甲板失效功能函数的随机过程模型。采用上穿率及并联系统可靠性分析方法求解此随机过程的可靠性。通过算例分析了舰船结构的阻尼率、砰击率及载荷相关系数对结构可靠性的影响。结果表明，结构的阻尼率决定了砰击载荷对可靠性的影响程度。同时对甲板结构各主要失效模式的可靠性进行计算，发现加强筋侧倾失效是最危险的。该方法将为合理评估舰船结构的可靠性提供理论参考依据。
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| 关 键 词： | 概率论 可靠性分析 砰击载荷 随机过程模型 上穿率分析方法 |
Reliability Analysis of Ship Deck Based on Slamming Loads |
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| ZHANG Jing,SHI Xing-hua,XU Ding-hai,WANG Shan. Reliability Analysis of Ship Deck Based on Slamming Loads[J]. Acta Armamentarii, 2009, 30(12): 1668-1673 |
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| Authors: | ZHANG Jing SHI Xing-hua XU Ding-hai WANG Shan |
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| Affiliation: | 1. School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China;2.School of Civil Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China |
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| Abstract: | Considering the buckling failure modes of ship deck,a method of assessing the reliability of ship structure under slamming load was proposed.The random process model of deck failure function under the combining actions of slamming,wave-induced and stillwater loads was set up based on the random process theory,considering the correlation of amplitudes of slamming and wave-induced loads. The reliability of the process was solved by up-crossing rate and parallel system reliability analysis method.The influence... |
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| Keywords: | probability reliability analysis slamming load random process model up-crossing analysis method |
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