聚酯缆动力学行为计算方法研究  

Study on the Calculation Method for the Dynamic Behavior of Polyester Rope

作　　者：康庄 隋海波 艾尚茂 张岩松 Zhuang Kang;Haibo Sui;Shangmao Ai;Yansong Zhang(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China

出　　处：《哈尔滨工程大学学报（英文版）》2024年第2期398-405,共8页Journal of Marine Science and Application

基　　金：supported by the National Natural Science Foundation of China(Grant No.51879047).

摘　　要：The dynamic stiffness of polyester rope presents a complex mechanical performance,and the search for an appropriate calculation method to simulate this property is important.Distorted simulation results eventually yield inaccurate line tension and vessel offset predictions,with the inaccuracy of vessel offset being particularly large.This paper proposes a flexible calculation method for the dynamic behavior of polyester rope based on the dynamic stiffness model.A real-time varying stiffness model of polyester rope is employed to simulate tension response through rope strain monitoring.Consequently,a simulation program is developed,and related case studies are conducted to explore the differences between the proposed method and analytical procedure of the DNV standard.Orcaflex is used to simulate the results of the latter procedure for comparison.Results show the convenience and straightforwardness of the procedure in the selection of an approximate dynamic stiffness model for polyester rope,which leads to an engineering-oriented approach.However,the proposed method is related to line property,which can directly reflect the dynamic behavior of polyester rope.Thus,a flexible calculation method may provide a reference for the simulation of the dynamic response of polyester mooring systems.

关 键 词：Polyester rope Dynamic stiffness model Mean tension Minimum breaking strength Case studies 

分 类 号：U664.4[交通运输工程—船舶及航道工程]