宽幅平底船型砰击载荷研究  

Study on slamming load of large-breadth-flat-bottom ship form

作　　者：俞永清[1] 余建星[1] 赵尚辉[2] 殷铁成[2] 田佳[1] 

机构地区：[1]天津大学港口与海洋工程实验室,天津300072 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船舶力学》2008年第5期740-747,共8页Journal of Ship Mechanics

基　　金：国家自然科学基金资助项目(50579047);教育部博士点基金(20030056045)

摘　　要：针对宽幅平底船型在风浪中航行,其船艏底部易遭受砰击从而引发船体高频振动的现象,对某型宽幅平底船型进行了研究。通过对目标船艇开展理论计算、船模试验、实船测量等多项工作,研究了非常规船型的砰击载荷。运用理论研究和试验相结合的方法,开展了复杂船型的砰击载荷研究,提出了理论预报的估算公式。通过大量计算和相关试验,得出了船型、航速和海况是影响宽幅平底船型砰击载荷的三大主要因素的结论。A type of large-breadth-flat-bottom ship form is studied in this paper, since the bottom of ship bow is vulnerable to slamming load and consequently high frequency vibration of the hull is induced when sailing in bad sea state.For irregular ship form,slamming load is analyzed through theoretical calculation, model test,and target ship surveying.And theoretical formula is presented for forecasting the slamming load of complex ship form by combining theoretical research with experiment.The conclusion indicates that ship form,speed and sea state are the three major factors related to slamming load of the target ship form.

关 键 词：宽幅平底船型 砰击概率 砰击压力 砰击动力弯矩 

分 类 号：U661.4[交通运输工程—船舶及航道工程]