海工重吊船破舱和吊装稳性研究

发布时间：2018-08-17 11:38

【摘要】：随着全球经济的复苏、世界贸易迎来新的发展期,海上大件和散件运输的需求量随之增加。为扩大船舶使用范围,适应不断变化的形势,尤其是当前海洋工程技术的快速发展,大量的大尺寸海洋工程结构物需要装载和运输,专门吊装和运送该类货物的海工重吊船应运而生。基于运送重大件货物的考量,该类船一般选择大开口货仓,横舱壁较少,一旦大开口货舱进水,其破舱稳性很难得到满足,尤其是2009年1月份开始正式实行的国际海上人命安全公约SOLAS.II-I章修正方案强制实施,其对货船的破舱稳性要求进一步加强。本文主要参照SOLAS 2009规范对满足研究的大开口海工重吊船概率破舱稳性的分舱优化方法开展计算分析。通过合理分舱,对一种满足概率破舱稳性计算的分舱指数进行了计算分析,并对不同的分舱方案进行了比较分析,得到该类船舶分舱的一般特性。另一方面,该类船在使用自身舷侧吊机起吊重物过程中,其吊装稳性也需要满足相应的规范要求。本文对该重吊船需要满足的吊装稳性规范进行了说明,并分析了压载舱分布、载荷及重心位置对该船吊装稳性的影响。同时,介绍了该重吊船吊装辅助浮箱系统的工作原理,并分析了其各要素对该船吊装稳性的影响。分析发现,浮箱的水平面面积和浮箱臂的值越大,对船舶初稳性修正越有利。但是,两者的选取需要考虑结构强度和运营效益。最后,对船舶辅助浮箱系统的浮箱主体和浮箱臂连接方式提出了改进意见。
[Abstract]:With the recovery of the global economy, world trade is entering a new development period. In order to expand the scope of use of ships and adapt to the changing situation, especially with the rapid development of marine engineering technology, a large number of large-scale marine engineering structures need to be loaded and transported. The sea engineering crane which specially hoists and transports this kind of goods arises at the historic moment. Based on the consideration of carrying heavy cargo, this kind of ship generally chooses the large opening warehouse, and the transverse bulkhead is less. Once the large opening cargo tank enters the water, its damage stability can hardly be satisfied. Especially the mandatory implementation of the SOLAS.II-I Chapter Amendment Scheme of SOLAS, which began in January 2009, further strengthens the requirements for the damage stability of cargo ships. This paper mainly refers to the SOLAS 2009 code to carry out the calculation and analysis of the subdivision optimization method which satisfies the probabilistic break stability of the large open sea crane. Through reasonable subdivision, a kind of subdivision index satisfying the calculation of probabilistic damage stability is calculated and analyzed, and different subdivision schemes are compared and analyzed, and the general characteristics of subdivision of this kind of ship are obtained. On the other hand, the hoisting stability of this kind of ship in the process of lifting heavy objects with its own side crane also needs to meet the requirements of relevant specifications. In this paper, the requirements of hoisting stability of the crane are described, and the influence of ballast compartment distribution, load and gravity center position on the hoisting stability of the ship is analyzed. At the same time, the working principle of the hoisting auxiliary floating box system of the crane is introduced, and the influence of its elements on the hoisting stability of the ship is analyzed. It is found that the greater the horizontal area of the floating box and the greater the value of the floating box arm, the more favorable the initial stability correction of the ship is. However, the selection of both needs to consider the structural strength and operational benefits. At last, some suggestions are put forward to improve the main body of floating box and the connection mode of floating box arm.
【学位授予单位】：浙江海洋大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U661.22

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