Dynamics of ships and fenders during berthing in a time domain
Dynamics of ships and fenders during berthing in a time domain
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DOI：
10.1016/j.oceaneng.2005.10.020
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发表时间：
2006-10
影响因子：
5
通讯作者：
G. Neşer;D. Ünsalan
中科院分区：
文献类型：
--
作者：
G. Neşer;D. Ünsalan
在设计用于停泊船舶的固定或半固定结构时，通常假设船舶的全部动能被护舷或护舷系统吸收。护舷的作用是吸收冲击载荷，防止停泊船舶与码头直接接触，保证船舶和码头安全靠泊。本研究从靠泊、碰撞和离港三个阶段对问题进行分析。每个阶段都在时域中进行分析和求解。假设该系统由三个部分组成：桥墩、护舷和船舶。同时影响停泊的环境效应有波浪效应、海流效应和风效应。康明斯方程被认为可以很好地表示问题，并在考虑各种因素的情况下在时域中求解。奥美通过康明斯方程及其后来的发展研究了与时间相关的力、力矩和船舶运动的瞬时值相关的非线性效应。作者将护舷力添加到计算方案中。介绍了在伊兹密尔湾运营的客运渡轮的案例研究。
When designing fixed or semi-fixed structures used for berthing ships, it is generally assumed that the entire kinetic energy of the ship is absorbed by the fender or the system of fenders. The fenders have the functions of ensuring a safe berthing both for the ships and the piers by absorbing shock loads and preventing direct contact between the berthed ship and the pier. In this study, the problem is analyzed in the stages of berthing, collision and leaving. Each of the stages is analyzed and solved in the time domain. The system is assumed to consist of three components: pier, fender and the ship. Environmental effects that simultaneously affect berthing are wave, current and wind effects. Cummins equation was assumed to be a good representation of the problem and was solved in time domain taking various factors into account. Nonlinear effects related to the instantaneous values of forces, moments and ship motions, which are time dependent, were studied by the Cummins equation and its later developments by Ogilvie. Fender forces were added to the calculation scheme by the authors. A case study for a passenger ferry operating in Izmir bay is presented.