作　　者： ; ;

机构地区： 华中科技大学土木工程与力学学院

出　　处： 《华中科技大学学报（自然科学版）》 2008年第10期110-113,共4页

摘　　要： 考虑非线性波浪载荷,提出了集装箱船结构直接设计法中设计波浪载荷的确定思路和方法.按此思路编制了程序,并对一艘集装箱船作了相应计算,将弯矩传递函数计算结果与相应模型试验进行了比较,预报趋势和量值与模型试验结果都有较好的一致性.将非线性波浪弯矩计算结果与德国劳氏船级社(GL)规范公式结果及国际船级社协会(IACS)标准进行了比较,结果显示非线性中拱中垂波浪弯矩的比值处于GL和IACS之间,非线性中拱中垂合成弯矩较非线性波浪弯矩平均增加了20%到35%.发展了一种改进的非线性切片理论和方法,用于计算包括外飘砰击、底部砰击和甲板上浪引起的非线性波浪载荷,适合于确定非线性的设计波浪弯矩和合成弯矩. Considering the nonlinear wave loads, a method was proposed, by which the design wave loads is determined in direct design of container ship structures. On the basis of the method, the program was made to carry out corresponding calculations for a container ship. Compared with data of the test, the consistency of numerical results of the frequency response functions about ship motions and bending moments is fairly good. The values of nonlinear sagging-hogging wave induced moments are compared with those from Germanischer Lloyd （GL） rule and International Association of Classification Societies （IACS）. The ratio of sagging moment to hogging moment is between IACS and GL. The combined moments （including impact loads） and the contribution of slamming moments are calculated, the combined moment increases 20 % to 35 % compared with the wave-induced moment. A modified nonlinear strip theory and method is improved, which is suitable for determining design values of nonlinear wave-induced and combined bending moments includes flare impact, bottom impact and green water forces. Some suggestions about the progress of the direct method are put forward.

关 键 词： 集装箱船结构 设计波浪载荷 直接设计法 非线性波浪弯矩 合成弯矩 砰击弯矩

领　　域： [交通运输工程] [交通运输工程]