深水系泊缆动力特性研究

悬链式系泊缆现被广泛使用于海洋平台的定位中,掌握其力学特性对确保海洋平台的安全有非常重要的意义。使用二维集中质量法建立了单根悬链式系泊缆的力学模型,运动方程通过C#编程语言实现计算并通过算例验证了正确性, 系泊缆动力特性的计算程序采取了动态循环数组存储的方法,节省了存储空间。研究了系缆上端点激励为x轴方向简谐运动时节点19、17、15、13、11和9的运动轨迹以及张力最大值最小值的变化趋势,最后在频域对各节点功率谱进行了分析,并得出一些有意义的结论,为海洋平台的发展以及主动式混合模型试验提供了一定的参考价值。

Investigation on dynamic characteristics of deep water mooring line

Catenary mooring line is widely used in the positioning of the offshore platform. It is very important to grasp the mechanical characteristics of the platform. Using two-dimensional lumped mass method to establish a single catenary mooring line of mechanical model, the equations of motion are calculated by C# programming language, and the correctness is verified by a numerical example. The calculation of the dynamic characteristics of mooring line adopts the method of dynamic storage, which saved the storage space. In this paper, we study the extremity of the mooring incentive for the X axis direction of simple harmonic motion node 19, 17, 15, 13, 11 and 9 trajectory and tension of the maximum and minimum values of the trend. Finally, in the frequency domain for each node power spectrum are analyzed. Finally, we draw some meaningful conclusions,which provides a certain reference value for the development of the ocean platform and the active mixed model test.