浮管结构在波浪中运动的数值模拟  

Numerical Simulation for the Motion of Floating Tube under Wave Action

作　　者：杨风艳[1] 邓推[1] 孙士龙[1] 马海龙[1] 赵子坤[1] 李洪晏 

机构地区：[1]海洋石油工程(青岛)有限公司,青岛266520

出　　处：《中国造船》2012年第A02期298-304,共7页Shipbuilding of China

摘　　要：如今浮管结构广泛应用于海洋防污染、海洋工程以及海水养殖中。浮管结构一般都有固定锚点及配重,锚泊系统的失效会对系统造成破坏性的后果,锚绳材料的选择显得尤为重要。针对该问题,论文通过对漂浮浮管在波浪作用下整体运动情况进行数值的模拟,计算出浮管所受外力,从而得到与浮管相连的锚绳所受外力。然后,根据锚绳所受外力,对于不同材料的锚绳对浮管运动的影响进行了分析;最后,得出了不同材料的锚绳将对漂浮浮管产生不同程度的影响,为实际工程中锚绳的选择提供了参考。Nowadays, floating tube structure is widely used in ocean pollution prevention, ocean engineering and the marine aquaculture. The floating tube structure typically includes balance weight and mooring anchor, The failure of the mooring system can cause catastrophic consequences. Thus the selection of the mooring line material is paramount. This paper mainly studies the motion of floating tube under wave action, the floating tube is simplified as a solid straight bar and divided into numerous elements by employing the lumped-mass method. Morison equation of relative motion is used to calculate wave loadings on the elements, other forces are also calculated to obtain external force and external torque acting on the floating tube. The motion equation of the floating tube is built according to Euler＇s equation and solved by 4th order Runge-kutta method. The motion response of the model under wave action has been simulated, the impact of mooring line material to the movements of the system is also investigated. Some references can be provided for the actual work.

关 键 词：漂浮浮管 波浪 数值模拟 锚绳 

分 类 号：P737.1[天文地球—海洋地质]