船舶艉部下水横梁布置方法  

Analysis of Layout Methods of Ship Stern Launching Beam

作　　者：董明海 郭永升 黄帅鹏 

机构地区：[1]浙江海运职业技术学院,浙江舟山316021 [2]舟山长宏国际船舶修造有限公司,浙江舟山316052 [3]浙江增洲造船有限公司,浙江舟山316052

出　　处：《船海工程》2016年第6期38-43,48,共7页Ship & Ocean Engineering

基　　金：舟山市科技计划(2014C31053)

摘　　要：针对某船厂39 000 t散货船采用双滑道水平船台下水艉部是否布置下水横梁的问题,运用多跨梁理论,结合船体剖面模数算法,对船体艉部危险横剖面进行弯曲强度和梁端垂向位移计算,判断是否需要增设艉部下水横梁。运用有限元法,对相关船体局部强度进行分析计算,作为判断是否需要增加艉部下水横梁的另一重要考察依据。判定艉部需增设下水横梁后,结合肋距、滑板尺寸、艉部重量分布等实际情况考虑,确定艉部下水横梁布置方案。Aiming at preparation for the launching of 39 000 DWT bulk carrier in a shipyard by adopting double slide ways on horizontal berth,the bending strength and beam end vertical displacement of the dangerous cross section were calculated by means of multi-span beam theory with hull section modulus algorithm. The result was used to judge the necessity to add stern launching beam. Then local strength of the partial hull was assessed by finite element method. According to the frame spacing,scantling of slide way and stern weight distribution,the layout project of stern launching beam was determined.

关 键 词：水平船台 滑道 下水横梁 多跨梁 弯曲应力 有限元法 

分 类 号：U671.5[交通运输工程—船舶及航道工程]