文献类型：期刊文献

英文题名：Influence of Different Static Equilibrium Calculation Methods on the Dynamic Response of Marine Cables during the Releasing Process: Review and a Case Study

作者：Zhang, Dapeng[1];Zhao, Bowen[2];Sun, Jiyuan[2];Zhang, Yi[1];Zhu, Keqiang[3];Jiang, Haoyu[4]

机构：[1]Guangdong Ocean Univ, Ship & Maritime Coll, Zhanjiang 524088, Peoples R China;[2]Zhejiang Univ, Ocean Coll, Zhoushan 316000, Peoples R China;[3]Ningbo Univ, Fac Maritime & Transportat, Ningbo 315211, Peoples R China;[4]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 316021, Peoples R China

年份：2023

卷号：11

期号：4

外文期刊名：JOURNAL OF MARINE SCIENCE AND ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000979027500001)、、Scopus(收录号：2-s2.0-85154539792)、WOS

基金：This research was funded by the Program for Scientific Research Start-up Funds of Guangdong Ocean University, grant number 060302072101, the Zhanjiang Marine Youth Talent Project-Comparative Study and Optimization of Horizontal Lifting of Subsea Pipeline, grant number 2021E5011, and the National Natural Science Foundation of China, grant number 62272109.

语种：英文

外文关键词：marine cables; different static equilibrium calculation methods; dynamic analysis; lumped mass method; dynamic characteristics

外文摘要：When analyzing the dynamic characteristics of marine cables, the static equilibrium state must first be calculated; a dynamic analysis can then be carried out based on the static equilibrium. Since the calculation of the static equilibrium is the basis of dynamic calculation, different methods for the calculation of the static equilibrium will have important impacts on the dynamic response characteristics of cables, which result in cables having different dynamic characteristics. This paper summarizes the research progress in the effects of different methods for the calculation of the static equilibrium on the dynamic response of marine cables during the releasing process, and current methods for their static calculation are more comprehensively developed as well as being more accurate. To study the influence of different static equilibrium calculation methods, with the reference of some specific parameters of a mooring cable, combined with specific sea conditions, through the necessary simplification of the cable releasing process, based on the lumped mass method, mooring cables are discretized into the lumped mass model, and dynamic analysis models of the releasing process of mooring cables under three methods for the calculation of the static equilibriums (the fast static equilibrium calculation method, the analytic catenary calculation method, and the catenary calculation method) are established. The dynamic characteristics of the spatial configurations of mooring cables based on different static equilibrium calculation methods are obtained through time domain coupling analyses. It was found that if the static equilibrium of a cable is calculated, taking into account gravity, buoyancy, wave current resistance, inertia forces, and the axial stiffness of a cable, then the characteristics of a cable during dynamic descent are closest to that of a real situation. The calculation results have a certain guiding significance for specific engineering practices.