箱形驳船底部砰击载荷及结构加强要求研究

针对箱形驳船，建立了三维水动力计算模型，对箱形驳船系列在设计海况下的船体与波浪之间的相对运动和相对速度做了短期预报。运用Ochi船舶砰击理论，分析了箱形驳船在不同吃水和拖航速度时船首砰击的发生概率和砰击压力极值等，并讨论了吃水、拖航速度等因素对箱形驳船底部砰击特性的影响。在此基础上，提出了箱形驳船首部砰击加强的临界航速建议，为箱形驳船规范中有关底部砰击载荷的修订提供参考和依据。

on bottom slamming 10 ad and strength requirement for Structures of Box Barges

3D hydrodynamic models are used for the study of box barges slamming.The relative motion and velocity between ship and wave of five different size ships are calculated.The occurrence probability and slamming pressure extreme value of ships with different draft and towing speeds are predicted according to Ochi slamming theory.Effects of speed and floating condition for the slamming are discussed.The relationship curves between slamming pressure and critical velocity are plotted and some meaningful conclusions are drawn as evidences for amendment on slamming loading of Box Barge Rules.