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为研究不同系泊系统对港内船只系泊安全的影响,以总长210 m的集装箱船系泊作业为例,应用时域响应分析方法,分别计算船舶选用传统系泊系统与恒定范围张力系统时,船舶在不同环境载荷、系缆力以及防撞材压力联合作用下的水平横移最大值与系缆力最大值.将同一环境载荷下不同系泊方式对应的船体位移及系缆力进行比较,研究恒定范围张力系统对港口船舶系泊安全的影响,确定该船型船舶的恒定范围张力系统适用的环境载荷条件.结果表明:船体横移最大值以及系缆力最大值均随有义波高增加而增大;此外,恒定范围张力系统可以将船舶系缆力控制在安全范围内;当船舶遭受垂直于港口并指向港口的环境载荷时,随着时间增加,恒定范围张力系统较传统系泊系统可以将船体水平横移限制在更小的变化范围内.当波浪载荷指向港口,并且方向与船首方向夹角为45°或135°时,此时恒定范围张力系统不能起到限制船舶水平横移的作用.
In order to study the influence of different mooring systems on the mooring safety of ships in the harbor, taking the 210 m long mooring operation of container ships as an example, the time domain response analysis method is used to calculate the ship selection of traditional mooring system and constant range tensioning system respectively. Under the condition of different environmental loads, mooring force and anti-collision material pressure, the maximum value of horizontal displacement and the maximum value of mooring force of ship are compared.The displacement and mooring force of hull corresponding to different mooring methods under the same environmental load are compared, The influence of constant tension system on the mooring safety of port vessels was studied and the applicable environmental loading conditions for the constant range tension system of the vessel were determined.The results show that the maximum value of the transverse displacement and the maximum mooring force both increase with the mean value of wave height, In addition, the constant-range tensioning system can control the mooring force of the ship within a safe range. When the ship suffers an environmental load perpendicular to the port and points to the port, the constant-range tensioning system can increase as time passes compared to the traditional mooring system Limiting the horizontal displacement of the hull within a smaller range of variation.When the wave load points to the port and the angle between the direction and the heading is 45 ° or 135 °, the constant range tension system at this time can not play the role of limiting the horizontal horizontal movement of the ship.