摘要
浮吊在海上作业受波浪载荷作用,产生复杂的非线性动态特性,易引发安全事故。将吊索作为柔性体,考虑吊重运动和船体运动的耦合,基于多体动力学建立了刚柔耦合浮吊作业的虚拟样机模型,仿真计算得出浮吊在海上补给作业的相关动力学特性。结果表明:被补给船位置,波浪激励频率、吊索初始长度和下降速度等对浮吊的安全作业有重要影响。
The wave-induced motion of the floating crane can produce complicated nonlinear dynamic characters,which maybe cause some accidents on the sea. Regarding the rope as a flexible body and considering the coupled motion of the cargo and the ship,a virtual prototype model of the floating crane was established based on flexible multi-body dynamics theory. From the simulation of the floating crane that carries out the supplement at sea,the relevant dynamic characters were calculated. The results indicate that the safety operation of the floating crane depends on the position of the ships,wave frequency,the initial length of cable and unreeling speed.
出处
《机械科学与技术》
CSCD
北大核心
2015年第3期393-397,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
上海市自然科学基金项目(11ZR1414900)
上海市教委科研创新项目(12ZZ156
12YZ118)
上海海事大学研究生创新基金项目(yc2012045)资助
关键词
浮吊
多体动力学
ADAMS
虚拟样机
ADAMS
calculations
computer simulation
computer software
cranes
dynamics
floating crane
mathematical models
multi-body dynamics
virtual prototype
