| 考虑随机波浪载荷的导管架平台结构优化设计 |
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| 引用本文： | 陆建辉,李玉辉,付方,刘玲. 考虑随机波浪载荷的导管架平台结构优化设计[J]. 中国海洋大学学报(自然科学版), 2006, 36(5): 781-784,789 |
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| 作者姓名： | 陆建辉 李玉辉 付方 刘玲 |
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| 作者单位： | 中国海洋大学工程学院,山东,青岛,266071;中国海洋大学工程学院,山东,青岛,266071;中国海洋大学工程学院,山东,青岛,266071;中国海洋大学工程学院,山东,青岛,266071 |
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| 基金项目： | 山东省青岛市科技发展基金 |
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| 摘 要： | 研究海洋平台适应恶劣海况的设计理论，应用ANSYS软件对位于渤海湾的CII导管架海洋平台进行动力分析，得到CII平台基本动力学参数和在随机波浪载荷作用下的动力响应。CII平台是以管件为主的空间框架结构，将管件外径作为固定约束，以其壁厚作为设计变量，考虑刚度、强度和稳定性等约束条件，以结构的总重量为优化目标，对平台进行构件尺寸的优化设计，计算结果表明目标函数值比原设计减小4．33％，经济效益明显。此研究方法对近海导管架海洋平台的结构设计具有实际参考价值。
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| 关 键 词： | 海洋工程 导管架平台 ANSYS 优化设计 |
| 文章编号： | 1672-5174（2006）05-781-05 |
| 收稿时间： | 2006-03-24 |
| 修稿时间： | 2006-03-242006-05-29 |
Optimum Design of Offshore Platforms Subject to Irregular Wave Loadings |
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| LU Jian-Hui,LI Yu-Hui,FU Fang,LIU Ling. Optimum Design of Offshore Platforms Subject to Irregular Wave Loadings[J]. Periodical of Ocean University of China, 2006, 36(5): 781-784,789 |
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| Authors: | LU Jian-Hui LI Yu-Hui FU Fang LIU Ling |
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| Affiliation: | College of Engineering, Ocean University of China, Qingdao 266071, China |
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| Abstract: | The Jacket platform was assumed to be of steel frame structure and the FEM software ANSYS was applied to study the dynamic properties of the CII Offshore Platform located in the Gulf of Bo hai in China. Furthermore, the responses of the structure subject to irregular wave loadings were studied. In the process of design for component sizes, the total weight of the structure was selected to be the optimal objective and the wall thicknesses of the pipes were taken as design variables. Constraints such as stiffness, strength, stability were take into account. The results show that the objective value was 4.33 96 less than the original and the proposed method is of significance in the design of offshore platforms. |
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| Keywords: | ANSYS |
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