减摇水舱挡板开度对稳定矩影响的研究

Stabilizing Moment Influenced by Angle of Damping Plate of Anti-Rolling Tank

水舱阻尼是影响减摇水舱减摇性能的重要因素,在减摇水舱的工程应用中,如何获得最佳的水舱阻尼成为水舱设计最关键的环节之一。一般情况下,可以通过调节水舱挡板来改变水舱底部通道截面积的大小,以达到改善水舱阻尼的目的。本文利用FLUENT软件,计算了二维水舱模型中不同挡板开度条件下水舱稳定矩的变化,得到该仿真模型最佳阻尼所对应的挡板开度的参考数值,并与减摇水舱台架试验的结果进行比较,表明了利用数值仿真的方法来研究水舱阻尼是可行的,该数值仿真的结果是合理的。

The damping effect is the important attribute which can influence the stabilizing performance of anti-rolling tank.In a practical design of anti-rolling tank,how to obtain the optimum damping effect has become one of the most critical elements.Improving the damping effect was usually accomplished by changing the cross section of tank＇s channel via the angle adjustment of damping plate.For this purpose,FLUENT was applied to calculate various anti-rolling stabilizing moments based on a 2D numerical model with different angle of damping plate,and reference values of angle which was corresponding with the optimum damping effect in the numerical model were obtained and compared with the results of bench test.The comparison proved the simulation results were reasonable and feasible to research the damping of anti-rolling tank through the FLUENT software.