渤海海域导管架平台冰激疲劳研究
Research on Ice Induced Fatigue of a Jacket Platform in Bohai Sea
作者: 田育丰 ：天津大学建筑工程学院，天津;
关键词: 冰边缘区； 冰激疲劳； 导管架平台； 瞬态动力分析； Marginal Ice Zone； Ice Induced Fatigue； Jacket Platform； Transient Dynamic Analysis
摘要:Abstract: The ratio of the marginal ice zone in Bohai Sea is increasing with global climate warming. The dy-namic condition in the marginal ice zone is complex, so the ice induced fatigue of a jacket platform in Bohai Sea attracts more attention. The ice induced fatigue of a jacket platform in Bohai Sea was analyzed by ANSYS software. According to the ice conditions in that sea area in winter, the rea-sonable ice induced fatigue working conditions were established first. The dynamic ice load time- history for each ice condition was determined by the dynamic ice load function. Then the transient dynamic analysis in time domain was advanced for the jacket platform. Based on the S-N curve, the fatigue lives of tubular joints in jacket platform legs were analyzed. The fatigue resistance re-quirement of the structure was satisfied. The analysis method of the ice induced fatigue was effec-tive to solve this kind of problem, and is significative for the design and evaluation for the offshore structure.
文章引用: 田育丰 (2015) 渤海海域导管架平台冰激疲劳研究。 海洋科学前沿， 2， 73-83. doi: 10.12677/AMS.2015.24010
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