拖缆系统直线定常运动仿真计算

摘要

推导了一个三因次拖缆系统动力平衡运动方程式，采用中心差分方法数值离散拖缆系统动力平衡方程.根据离散方程编制了拖缆系统直线定常运动程序，在设定拖缆尾端自由边界条件及拖点边界条件下，数值仿真计算30m拖缆的阵形.根据仿真计算讨论了拖缆的材料刚度、拖缆水中重量、拖点速度、水动力系数主要参数等对拖缆阵形的影响.拖缆系统直线定常运动的仿真计算为拖缆系统设计可提供参考依据，同时通过该仿真计算及讨论，为拖缆系统非定常运动仿真计算奠定了基础.%Two-dimensional code is written to simulate the motion of a towed cable. The code is based on a robust and stable finite difference approximation to the differential equations derived form basic dynamics. A profile of 30 m cable in stable motion is computed. The computed displacements are close to other article by the reference.