剪流直接计算在油船设计中的应用研究  

Application of Direct Calculation of Shear Flow in Oil Tankers

作　　者：甘水来 罗小林 王山山[2] 徐智言 

机构地区：[1]上海外高桥造船有限公司,上海200137 [2]河海大学力学与材料学院,南京210098

出　　处：《中国造船》2016年第3期116-126,共11页Shipbuilding of China

摘　　要：闭合薄壁箱型构件中各点的剪流为定剪流和不定剪流之和,且不定剪流在同一闭合结构中为定值。对于单个闭合结构,受剪切后周界变形之和为零,可得到该结构中不定剪流的计算公式。对于由多个闭合结构组成的剖面,根据剪切变形协调原理,得到一组不定剪流计算方程。以具有两道纵舱壁的超大型油轮为例,对船体梁剖面的剪流进行了计算。Shear flow in a closed box-typed beam is the sum of determinate shear flow and indeterminate shear flow, as well as indeterminate shear flow keeps constant. According to the principle that total deformation along the contour of a closed structure is zero, calculation formulas for indeterminate shear flow in the structure are derived. With reference to the section composed of several closed structures, a set of equations for calculating the indeterminate shear ^ow are obtained on the basis of harmonized deformation. Taking an oil tanker with two longitudinal bulkheads as an example, a detailed analysis of the shear flow is performed for hull girder sections.

关 键 词：薄壁梁 剪流 定剪流 不定剪流 船体梁 油船 

分 类 号：U663[交通运输工程—船舶及航道工程]