| 摘要: |
| 对深水钻井隔水管进行准静态分析时，需搜索波浪的最大相位角以寻找最大波流合力，提出了搜索波浪最大相位 角的最大Mises应力准则。开发了隔水管准静态分析系统，系统以C+ +Builder为开发环境，后台调用ABAQUS进行 计算,调用面向对象Python程序访问数据库，提取计算结果,实现了波浪最大相位角的自动搜索和深水钻井隔水管的 准静态非线性分析。应用实例验证了该分析系统的有效性。结果表明,波浪相位角为180°时隔水管准静态响应最大, 其次为波浪相位角90° ,270° ,0°，隔水管静态响应介于波浪相位角为90°与270°的准静态响应之间。 |
| 关键词: 深水钻井隔水管 波流联合作用 准静态分析 |
| DOI： |
| 分类号: |
| 基金项目:国家高技术研究发展(863)计划课题(2006AA09A1060 - 4) |
|
| Quasi-static nonlinear analysis of deepwater drilling risers |
|
CHANG Yuan-jiang1,CHEN Guo-ming1,SUN You-yi1,XU Liang-bin2
|
|
(1. College of Mechanical and Electronic Engineering in China University of Petroleum，Dongying 257061，Shandong Province，China ;2. China Offshore Oil Research Center, Beijing 100027, China)
|
| Abstract: |
| In order to find out the maximal combined wave-current loads when quasi-static analysis of the deepwater drilling riser was performed，the maximal Mises stress criterion for search of the maximal wave phase angle was proposed. Quasi-static analysis system for deepwater drilling riser was developed. Employing C++ Builder, the calculation was carried out by ABAQUS in the background，and object-oriented Python program was invoked to visit ODB file to extract calculation results. Then the automatic search of the maximal wave phase angle as well as the quasi-static nonlinear analysis of the drilling riser was implemented. An example, which illustrates the validity of the analysis system, was presented. The result indicates that the quasi-static response with wave phase angle of 180° is the maximal, followed by 90°, 270° and 0°, while the static response is between the quasi-static response with wave phase angle of 90° and 270°. |
| Key words: deepwater drilling risers combined wave-current loads quasi-static analysis |
