【摘要】 介绍在时域内,防风水鼓系泊系统在风、浪、流联合作用下计算系泊力的1种方法。该方法是在分析波浪荷载时,使用了设计波法和非线性Stokes五阶波,并由经验公式求出了船舶的风、流作用力。由准静态方法计算了初始条件后,在忽略了锚链和水鼓动态效应对船舶运动的影响条件下,求解了系泊力和船舶的运动时历。再由二维集中质量法建立了锚链和水鼓的数学模型,用Houbo1t方法求解了锚链和水鼓的运动方程,并对系泊力进行了修正。将计算结果和其它经验公式计算的结果进行了比较,吻合得较好,表明本文建立的方法能够用于防风水鼓系泊系统的系泊力计算。更多还原

【Abstract】 A computing method of the mooring force of buoy mooring system under the joint action of wind, wave and current was developed in time domain. Nonlinear five-order Strokes and design-wave method were adopted for wave load analysis and the flow load and wind load on vessel were acquired by empirical formulas. With initial conditions derived from quasi-static method, the time history of vessel and mooring force were obtained without considering the impact of dynamic effect of chain and buoy on the vessel motions. Then, 2-D plumped mass method was employed to form the mathematical model of chain and buoy, the dynamic equations of which were obtained by Houbolt method, and the mooring force were also corrected. The computational results were in good agreement with those by other experimental formulas and thus proved that the method established in this paper can be used for computing the mooring force of buoy mooring system.更多还原