水下系泊浮筒结构设计方法研究

以一种水下系泊浮筒结构为对象，对其设计方法展开研究．采用标准}￡紊流模型计算不同拓扑结构的浮筒管段截面的绕流阻力系数，应用Morison方程和波浪理论计算波流作用下浮筒结构的流体力，利用梁弯曲理论计算浮筒调整装置系泊位置，基于非线性有限元理论分析连接结构强度．在此基础上，研究系泊浮筒管段截面形状、浮筒结构刚度和浮筒连接结构强度等参数的设计方法，试图探索水下系泊浮筒结构设计理论与方法．通过设计实践，验证了水下系泊浮筒结构设计理论与方法的有效性．

Study of Design Method for Underwater Mooring Buoy Structure

The design method for a new underwater mooring buoy structure is studied. Drag coefficients of different types of buoy pipe section are analyzed by numerical solutions of 2D Renolds-Averaged Navier-Stokes equations with k-ε turbulent model. Morison formula and wave theory are applied to compute wave and current environmental loads as external excitation of structural analysis. The mooring position of buoy adjusting device is computed by beam bending theory. Based on nonlinear finite element theory, the contact intensity of clasp joint structure is analyzed. In brief, the design method is researched on the shape of mooring buoy pipe section; and the stiffness of buoy structure, and the intensity of joint structure. The design theory and method for underwater mooring buoy structure is discussed and verified by designing practices for a new underwater mooring buoy.