【摘要】 使用无网格粒子法来研究海洋工程辅助船的被动式减摇水舱设计及液体晃荡问题。减摇水舱随船舶横摇时舱内液体运动与船舶横摇运动存在相位差,当相位差为90°时减摇水舱减摇效果最佳,否则,减摇效果减弱甚至增摇。通过粒子法对被动式减摇水舱晃荡的数值模拟,可得到液体晃荡与横摇运动的相位差,模拟结果与实验结果基本一致。通过相位差可以判别被动式减摇水舱最佳减摇效果的区间,指导海洋工程辅助船的减摇水舱设计。更多还原

【Abstract】 The meshless particle method is used in the study of fluid sloshing process and the design of anti-roll tanks and for an offshore supply vessel(OSV).The fluid movement between anti-roll tanks lags ship rolling movement. The tanks generate maximum counter-moment against ship rolling and give optimal anti-rolling effect at the phase lag of 90°.Out of that state the effect will be weak and even worse,may magnify ship’s rolling.The particle method is used to simulate the phase lag and sloshing.The results of simulation coincide with those from experimental tests,which proves that the particle method can be used to obtain the phase lag of fluid sloshing behind ship rolling, hence,to guide the design of anti-roll tanks for offshore supply vessels.更多还原