【摘要】 大洋多金属结核深海采矿扬矿管所受水平液动力不仅受系统参数、海浪和海流的速度和加速度的影响,而且还随着时间和水深等因素而变化。分析了海浪水质点的速度和加速度与深度的关系,并根据Morison方程详细推导了液动力的修正方程,得出了液动力随时间和深度的变化曲线。在同一水深处,总液动力随时间的变化规律接近于余弦曲线,而在同一时刻,总液动力从海面至水深200m内迅速递减至67.54N,其最大值为32084.45N。为整体方案的可行性分析以及扬矿系统的设计和校核提供依据。更多还原

【Abstract】 The horizontal hydrodynamic force of deep sea lifting pipe in the system of Polymetallic nodule is influenced not only by systemic parameters,velocity and acceleration of wave and current,but also by time and the depth below ocean surface.The relationship between velocity of water particle and the depth,as well as the relationship between the acceleration and the depth,is analyzed in the paper.Furthermore,the modified equation is deduced in detail according to Morison equation and the hydrodynamic force as a function of time and depth below ocean surface is calculated.At the same depth below ocean surface,the total hydrodynamic force is varied with increasing of time as a function of sine.While at the specified time,the total hydrodynamic force decreased fastly to 67.54N from the ocean surface to 200 meters below the surface.And the maximum of hydrodynamic force is 32084.45N.The conclusions would be useful for the feasibility analysis of the entire scheme,the design and the check analysis of lifting system..更多还原