破损船舶瘫船时的横摇运动分析  

Analysis on Rolling Motion under Dead Ship Condition of Damaged Ships

作　　者：胡丽芬 鲁江[2] 张全忠[1] 田忠民[1] 

机构地区：[1]鲁东大学交通学院,烟台250064 [2]中国船舶科学研究中心,无锡214082

出　　处：《中国造船》2015年第1期11-16,共6页Shipbuilding of China

基　　金：山东省科技发展计划(2011YD05006);山东省自然科学基金(ZR2013EEL007;ZR2012EEL13)

摘　　要：为了研究破损船舶瘫船时的横摇运动,采用Davenport风谱计算定常风和阵风的风倾力矩,采用ITTC双参数波谱计算不规则波波浪力矩,采用增加重量法计算破损进水,建立了破损船舶瘫船时的横摇运动方程。最后以一艘船舶为例,计算了船舶非对称破损、对称破损以及完整状态下的横摇运动幅值,分析了破损船舶瘫船时的横摇情况。结果表明,船舶在破损时的横摇幅值远大于完整状态下横摇幅值且非对称破损时的横摇幅值最大。To study rolling motion of damaged ships under dead ship condition, firstly, the wind induced stochastic excitation moment is calculated with fluctuating wind velocity by Davenport spectrum; secondly, stochastic wave exciting moment is considered with ITTC wave spectrum; thirdly, weight added method is used to consider the flooding due to damage. Under dead ship condition an uncoupled rolling model is established for damaged ships. In an application example Rolling motion in asymmetric damage, symmetric damage and intact state is conducted respectively, as well as rolling motion under dead ship condition is analyzed. It is indicated that the maximum rolling amplitude in damage state is far larger than that in intact state, and the one in asymmetric damage state is the largest.

关 键 词：破损船舶 运动幅值 横风横浪 横摇运动 

分 类 号：U661.43[交通运输工程—船舶及航道工程]