基于第二代完整稳性的集装箱船稳性研究

发布时间：2018-04-22 04:16

本文选题：集装箱船 + 复原力臂　；参考：《大连海事大学》2016年硕士论文

【摘要】：近年来,随着船舶行业的快速发展,集装箱船因其成本低而效率高的优势受到海洋运输业的广泛青睐,成为船舶运输中的重要组成部分。集装箱船拥有甲板上装载大量集装箱的载货特点,重心较高,KMT值较之一般船型大,因此,集装箱船在航行过程中的安全性能也逐渐被世界各国关注起来。船舶的稳性研究是船舶安全航行最重要的性能之一,它是船舶安全航行的基本保障,也是船舶检验的最主要内容之一。目前现阶段对稳性的研究主要都是船舶在静水中的稳性研究,但是,由于实际上船舶经常会在波浪中航行,因此,制定新一代完整稳性衡准迫在眉睫。因此,对参数横摇和纯稳性丧失的研究是非常有必要的。本文主要是对集装箱船的稳性进行研究,主要内容包括以下几个方面：1)利用NAPA软件进行静水中的稳性计算。本文主要采取了五种典型的装载工况进行计算校核。2)研究讨论了船舶在波浪中复原力臂的计算方法：选取三种不同的坐标系,求解任意规则波中浮力与重力平衡、纵倾力矩为零的瞬时静平衡方程,得到船和波的交点,继而求出船舶各剖面下浸水横剖面面积及其面积心,沿船长积分即可求得船舶的排水体积及浮心位置,并基于Froude-Krylov假定计算船舶在波浪中的复原力臂GZ。然后利用MATLAB进行编程,开发了相应的计算程序,并以该集装箱船为计算实例,分析了波浪频率、波陡、浪向角和船波相对位置对稳性变化的影响,同时与静水中的复原力臂进行了对比分析。3)介绍了参数横摇衡准草案和纯稳性丧失草案,利用MATLAB对参数横摇第一层薄弱性衡准和纯稳性丧失的第一层薄弱性衡准进行编程,并对该集装箱船的四种典型装载工况进行了校核。
[Abstract]:In recent years, with the rapid development of the shipping industry, container ships are widely favored by the marine transportation industry because of their low cost and high efficiency, and become an important part of the ship transportation. Container ship has the characteristics of loading a large number of containers on deck, and its center of gravity is higher than that of general ship. Therefore, the safety performance of container ship in the course of navigation has been paid more and more attention by the countries all over the world. The study of ship's stability is one of the most important performances of ship's safe navigation, it is the basic guarantee of ship's safe navigation, and it is also one of the most important contents of ship's survey. At present, the research on stability is mainly about the stability of ships in still water. However, because ships often sail in waves, it is urgent to establish a new generation of complete stability balance. Therefore, it is necessary to study the parameter rolling and the loss of pure stability. In this paper, the stability of container ship is studied. The main contents include the following aspects: 1) using NAPA software to calculate the stability of container ship in still water. In this paper, five typical loading conditions are adopted to calculate and check. 2) the calculation method of ship's restoring arm in wave is studied. Three different coordinate systems are selected to solve the balance of buoyancy and gravity in arbitrary regular wave. The instantaneous static equilibrium equation with zero trim moment is used to obtain the intersection point between ship and wave, and then the area and area center of the submerged cross section under each section of the ship are obtained. The drainage volume and the position of the floating center of the ship can be obtained by the integral of the captain. Based on the Froude-Krylov assumption, the recoil arm of ship in the wave is calculated. Then the corresponding calculation program is developed by using MATLAB, and the influence of wave frequency, wave steepness, wave direction angle and relative position of ship wave on stability change is analyzed by taking the container ship as an example. At the same time, compared with the recoil arm in hydrostatic water, the paper introduces the draft of parameter rolling balance and the draft of pure loss of stability, and uses MATLAB to program the first layer of weakness of parameter rolling and the first level of loss of pure stability. The four typical loading conditions of the container ship are checked.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U661.22

【相似文献】