摘要
本文目的是研究柔性线在水流中的形状与张力问题。首先 导出了线的无量纲平衡方程式,为简化问题提出广义佛洛德数Πω;讨论了临界角α_c,φ_c与广义佛洛德数Πω的义系。最后,利用龙格—库达数值积分方法,确定柔性线的几何形状,其中包括拖索、锚索与曳纲 同时,分析了水动侧向力r_s对曳纲与锚索几何形状的影响。
The object of this paper is to study the shape and tension of flexible line in current. First, the non-diraentional equations of equilibrium were deduced and the generalized Froude number IIw was cited for the simplicity of the problem. The correlations between the critical angles αc ,φc and the generalized Fronde number Flw were discussed. Second, by using the Runge-Kutta method of numerical integration, the author determined the geometry of flexible line, including towing cable, chain cable and warp. The effect of hydrodynamic side force rs on warp and cable geometry was also analyzed.
