摘要：In this paper, the influence of the damping matrix and mud discharge on the recoil response of deepwater drilling riser after emergency disconnection is studied based on our published study. Mathematically, the deepwater drilling riser is discretized into a mass-spring-damping system with three degrees of freedom (DOE). The governing equation is solved by the principal coordinates analysis method (Method A) and the complex modal analysis method (Method B), respectively. Firstly, the mathematical expression of the frictional resistance acting on the riser during mud discharge is obtained by curve fitting. Then, the detailed solving process and the difference of the results calculated by the two solving methods are shown. The influence of the non-diagonal elements in the damping matrix on the recoil response is studied. In addition, the effect of the frictional resistance of mud discharge on the recoil characteristics is assessed. Finally, conclusions are drawn based on the analysis.

关键字：Deepwater drilling riser; Emergency disconnection; Recoil response; Solving methods; Mud discharge

ISSN号：0029-8018

卷、期、页：(222):108591

发表日期：2021-02-15

影响因子：3.067600

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）,地学领域高质量科技期刊分级目录（国外T1）,EI（工程索引）

发表期刊名称：OCEAN ENGINEERING

第一作者：王宴滨,高德利

论文类型：期刊论文

论文概要：王宴滨,高德利，Influence of the damping matrix and mud discharge on the recoil response of deepwater drilling riser after emergency disconnection，OCEAN ENGINEERING，2021，(222):108591

论文题目：Influence of the damping matrix and mud discharge on the recoil response of deepwater drilling riser after emergency disconnection