The SCR Wave-Rigid Body Rotation Model Maximum Amplitude Analysis Influenced by Z Direction Motion Based on Cable3D

2018 2nd International Conference on Environmental, Industrial and Energy Engineering

生态环境科学;能源学

Zhu, Bo^1 ; Huang, Weiping^1 ; Yao, Xinglong^1 ; Liu, Juan^2

Shangdong Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao

266071, China^1

Institute of Civil Engineering, Agriculture University of Qingdao, Qingdao

266009, China^2

关键词: Large deflection;    Linear motion;    Maximum amplitude;    Phase difference;    Rigid body rotation;    Slender beams;    Steel catenary risers;    Transverse flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/219/1/012029/pdf
DOI  :  10.1088/1755-1315/219/1/012029

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Rigid body rotation(RBR) of steel catenary riser(SCR) is a problem which cannot be ignored in the caculation of transverse flow displacement and other velocity and acceleration. For the chapter, on basis of the RBR, wave force model, the large-deflection slender beam model(LDSB) and the suspension point's z direction motion, the influence of RBR on the transverse direction displacement of the SCR is explored. The results of analysis indicate that the structure is large affected by the wave and cross flow motion relative to RBR. With water depth augment, the maximum amplitude reduces from 10th to 200th.The displacement of RBR on the structure increases with the increase of vector S, and decreases with the diminution of vector S. At 140 nodes, the effect is greatest There exists phase difference between rigid body oscillation and linear motion superposition the wave load, In working conditions 2 and 3, it is more significant. And the amplitude increased, offset or even decreased.