波斯湾中受随机波作用的某新建离岸导管架平台时域动力分析研究（英文）

论文摘要

API RP2 A WSD is a design code in practice for design of jacket platforms in the Persian Gulf but is based on the Gulf of Mexico environmental condition. So for the sake of using this code for the Persian Gulf, it is better to perform a calibration based on this specific region. Analysis and design of jacket platforms based on API code are performed in a static manner and dynamic analysis is not recommended for such structures. Regarding the fact that the real behavior of the offshore jacket platforms is a dynamic behavior, so in this research, dynamic analysis for an offshore jacket platform in the Persian Gulf under extreme environmental condition is performed using random time domain method. Therefore, a new constructed offshore jacket platform in the Persian Gulf is selected and analyzed. Fifteen, 1-h storm, simulations for the water surface elevation is produced to capture the statistical properties of extreme sea condition. Time series of base shear and overturning moment are derived from both dynamic and static responses. By calculating the maximum dynamic amplification factor（DAF） from each simulation and fitting the collected data to Weibull distribution, the most probable maximum extreme（MPME） value for the DAF is achieved. Results show that a realistic value for DAF for this specific platform is 1.06, which is a notable value and is recommended to take into practice in design of fixed jacket platform in the Persian Gulf.

论文目录

• 1 Introduction
• 2 Modeling
• 3 Time History Dynamic Analysis
•   3.1 Modal Analysis
•   3.2 Simulation of Irregular Sea
• 4 Results and Discussions
• 5 Conclusion

文章来源

类型: 期刊论文

作者: Abdolrahim Taheri,Ehsan Shahsavari

来源: Journal of Marine Science and Application 2019年03期

年度: 2019

分类: 工程科技Ⅱ辑,基础科学

专业: 海洋学

单位: Department of Mechanical Engineering, Petroleum University of Technology

分类号: P75

页码: 372-379

总页数: 8

文件大小: 3025K

下载量: 13