| 冰激动载荷下自升式平台桩腿结构的安全评估 |
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| 引用本文： | 张剑波,刘健.冰激动载荷下自升式平台桩腿结构的安全评估[J].石油大学学报(自然科学版),2005,29(5):76-79,83. |
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| 作者姓名： | 张剑波 刘健 |
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| 作者单位： | [1]上海交通大学船舶海洋与建筑工程学院,上海200030 [2]中国石油大学机电工程学院,山东东营257061 |
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| 基金项目： | 国家重点装备科技项目攻关计划（97-317-02-01） |
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| 摘 要： | 为了保证自升式平台冬季在冰区海域安全作业，应对桩腿结构在动冰载作用下的强度进行评估。应用ANSYS软件建立自升式平台和冰相互作用的仿真计算模型，实现了自升式平台结构的冰激瞬态动力分析，提出冰激动载荷下平台桩腿的静强度和疲劳强度校核的计算流程。对渤海某自升式钻井平台桩腿进行了强度校核，计算出不同海冰参数下平台桩腿的冰激疲劳损伤。计算结果表明，该平台的桩腿在冰激动载荷下的强度满足安全要求，冬季继续在冰区海域进行钻井作业是可行的。
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| 关 键 词： | 自升式平台 冰载荷 动态分析 冰激疲劳 有限元 安全评估 |
| 文章编号： | 1000-5870（2005）05-0076-04 |
| 收稿时间： | 2005-03-15 |
| 修稿时间： | 2005-03-15 |
Safety assessment on leg ice-induced of jack-up platforms under dynamic loads |
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| ZHANG Jian-bo, LIU Jian.Safety assessment on leg ice-induced of jack-up platforms under dynamic loads[J].Journal of the University of Petroleum,China(Edition of Natural Science),2005,29(5):76-79,83. |
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| Authors: | ZHANG Jian-bo LIU Jian |
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| Affiliation: | 1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, China ; 2. College of Mechanical and Electronic Engineering in China University of Petroleum, Dongying 257061, China |
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| Abstract: | The digital model for interactive action between ice and jack-up platform was established using ANSYS sottware, and the dynamic analysis of jack-up platform was performed. A calculation process for the ultimate and fatigue strength assessment on jack- up under ice-induces dynamic loads was presented. The strength of legs of a jack-up drilling platform serviced in Bohai Sea is evaluated and the ice-induced fatigue damage of the platform leg under different ice parameter was determined. The calculation results show that the jack-up platform under dynamic ice loads is in safe condition and can perform drilling operation in winter ice zone. |
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| Keywords: | jack-up platform ice load dynamic analysis ice-induced fatigue finite element safety assessment |
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