起重船-风机吊装系统动力学模型仿真分析  

Dynamic Response Analysis of Hoisting System of Floating-Crane and Wind Turbine

作　　者：朱明[1] 张鹏[1] 朱昌明[1] ZHU Ming;ZHANG Peng;ZHU Chang-ming(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院

出　　处：《机械设计与制造》2019年第10期50-53,共4页Machinery Design & Manufacture

基　　金：国家自然科学青年基金“海上大型风机整体安装柔性对接与阻尼控制研究”(51205249)

摘　　要：海上风机的安装是以起重船为支撑浮在海上进行作业的,使得海上风机的安装将会受到船体摇荡的影响而产生摆动,因而有可能在安装过程中造成风机的损坏。所以必须对海上风机在安装过程中起重船和风机的动态特性进行分析和研究。建立了12自由度的船体-风机耦合多体动力学模型。在模型中考虑了船体在海面上的纵荡、横荡、升沉、横摇、纵摇和首摇6个自由度以及风机的面内、面外摆角和风机的横摇、纵摇和首摇5个自由度以及吊索的弹性变形。然后对起重船和风机的动态特性进行了分析。仿真结果表明,吊索的释放速度、海浪频率以及海浪浪高对风机的摇摆影响。The offshore wind is transported and installed by the floating crane suspended on the sea water.Thus,the wave-induced ship motions can cause the hoisted wind turbine to pendulate and the wind turbine may be damaged during the installation process.Therefore,it is urgent to study the dynamic response of the floating crane and wind turbine during the installation process.This model considers the 6-DOF motion of floating crane including the surge,roll,sway,pitch,heave and yaw,5-DOF motion of wind turbine including the swing angle in the xz plane and yz plane and elastic stretch of the hoisting cable.And then,the dynamic response of floating crane and wind turbine is analyzed.The results demonstrate that the dynamic response of the wind turbine depends on the release velocity of the cable,wave frequency and wave height.

关 键 词：起重船 风机 耦合 动态特性 

分 类 号：TH16[机械工程—机械制造及自动化] TH113