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| 抗冰平台的冰振疲劳分析 | |
| 引用本文： | 岳前进,刘圆,屈衍,时忠民.抗冰平台的冰振疲劳分析[J].工程力学,2007,24(6):159-164. |
| 作者姓名： | 岳前进 刘圆 屈衍 时忠民 |
| 作者单位： | 1. 大连理工大学工业装备结构分析国家重点实验室,辽宁,大连,116023 2. 大连理工大学工业装备结构分析国家重点实验室,辽宁,大连,116023;中国船级社海工审图中心,天津,300457 3. 中国海洋石油研究中心,北京,100027 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 基于现场原型结构的观测,对渤海抗冰导管架平台冰激疲劳寿命估计的必要性进行了分析。结果表明,由于渤海特殊环境条件与油藏分布决定了在该海域设计的导管架平台属于典型的柔性抗冰结构,冰激振动不仅能激起较大的加速度响应,而且引起的交变应力也比较明显,在结构设计中进行疲劳寿命估计是必要的。目前,精确估计冰激疲劳寿命的方法还不成熟,其中冰激励荷载与海冰疲劳环境模型是两个关键问题。结合现场观测,对建立锥体疲劳冰荷载与冰环境参数的研究方法进行了论述,为详细疲劳分析提供了基础。 |
| 关 键 词： | 抗冰平台 冰激振动 冰荷载 疲劳分析 近海工程 |
| 文章编号： | 1000-4750（2007）06-0159-06 |
| 修稿时间： | 2006-10-232007-03-18 |
FATIGUE-LIFE ANALYSIS OF ICE-RESISTANT PLATFORMS |
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| YUE Qian-jin,LIU Yuan,QU Yan,SHI Zhong-min.FATIGUE-LIFE ANALYSIS OF ICE-RESISTANT PLATFORMS[J].Engineering Mechanics,2007,24(6):159-164. | |
| Authors: | YUE Qian-jin LIU Yuan QU Yan SHI Zhong-min |
| Affiliation: | 1. State Key Laboratory of Structure Analysis of Industrial Equipment, Dalian University of Technology, Dalian, Liaoning 116023, China; 2. CNOOC Research Center, Beijing 100027, China; 3. Offshore Engineering Plan Approval Centre ofCCS, Tianjin 300457, China |
| Abstract: | Based on field observation results, the necessity of ice-induced fatigue analysis of ice-resistant platforms is analyzed. The results show that the jacket platforms in Bohai Sea are typical compliant ice-resistant structures because of exceptive environmental condition and oil distributing. The ice-induced vibration not only causes great acceleration response but also significant alternate stress, so the ice-induced fatigue life should be analyzed in the design. The method of accurately estimating ice-induced fatigue life is not mature at present, and the fatigue ice load and the fatigue environmental model are two key problems. The dynamical ice force and environmental condition for fatigue life evaluation of ice-resistant conical structure are discussed based on field test, which is helpful to fatigue analysis in detail. |
| Keywords: | ice-resistant platform ice-induced vibration ice load fatigue analysis offshore engineering |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
