浮框系泊系统的水动力研究

Hydrodynamic research on the mooring system of floating collar

深水网箱养殖产业在国内发展迅速,但基础理论研究相对落后,在近海风浪条件下的安全可靠性缺乏理论依据。本文对深水网箱实际工况进行简化,得到简化的浮框系泊系统的水动力模型。通过力学分析,推导出的浮框模型的6自由度方程并编制了数值模拟程序,得到浮框系泊系统的水动力特性,发现锚绳仰角偏大的现象并提出了解决方案,为网箱等飘浮性结构物的水动力计算提供了依据。

The deep-water sea cage industry developed fast in domestic. However, theoretical researches on the hydrodynamics of sea cages leg behind the applications. Safety and security of sea cages deployed in deep-water are lack of assurance. In this article, the deep-water sea cage in practical working condition is simplified and a hydrodynamic model is established,which is combined by floating collar and mooring system. As a result, the six-degrees-off-freedom equation of floatihg model is derived and the hydrodynamic characteristic of the mooring system is received by the application of mechanical analyzing and numerical simulating in simplified floating collar. The large elevations of the cables are observed and the solution is brought forward,which provides the basis for the hydrodynamic calculation on floating structures.