海洋平台在复杂的海域工作时,除了受环境载荷影响,也可能受到过往船只碰撞的影响.本文分析了船舶与海洋平台碰撞的外部动力学问题,得到完整的碰撞力时程曲线.在1000 m水深,风、浪、流联合作用下,分别对有无碰撞力影响的平台进行完全时域耦合分析,并将碰撞前后的运动响应以及系泊缆顶端张力的计算结果进行对比,得到碰撞力的变化趋势、碰撞后平台运动响应特性和系泊缆顶端张力变化情况,为今后海洋平台的设计、系泊、防撞等方面提供一定的理论支持.%When offshore platforms work in complex sea areas, they may also be affected by collisions between ships in addition to environmental loads. In this paper, the external dynamics of collision between ship and offshore platform are analyzed, and the whole time history curve of collision force is obtained. In the depth of 1 000 m, combined with the effect of wind, wave and current, this paper analyzed the full temporal coupling on the platform with the impact force and without the force. What's more,the author compared the motion response and mooring line tension at the top of the calculation results when the platform had been impacted with the results when the offshore platform had not been impacted. And then, the mo-tion responses of the collision force change trend, characteristics and the variation of top tension mooring cable after the col-lision are obtained, to provide some theoretical support for the future offshore platform design, mooring and collision avoidance.
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