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为了防止船舶撞击非通航孔桥,提出一种大距离走锚消能式防撞系统。该系统由水面拦阻系统和锚碇系统组成,主要特点是利用重力锚大距离走锚过程消耗船舶动能。根据动能定理,采用分步迭代法,完成了防撞系统受船舶撞击过程的数值分析。数值计算结果显示:船舶艏正撞决定浮筒所能提供浮力的下限和拦阻锚链的最小承载力;船舶横向撞击引起的防撞系统移动距离,则是防撞系统设置位置至桥位距离的决定因素。
In order to prevent the ship from colliding with the non-navigable bridge, a kind of anti-collision collision avoidance system with large distance is put forward. The system is composed of a water surface arresting system and an anchorage system. The main feature of the system is that the anchoring process using gravity anchors takes a large distance to consume the kinetic energy of the ship. According to the kinetic energy theorem, the numerical analysis of the crashworthiness of the collision avoidance system subjected to the impact of the ship was completed by using the step-by-step iteration method. The numerical results show that the positive impact of the ship determines the lower limit of buoyancy provided by the buoy and the minimum bearing capacity of the chain. The moving distance of the collision avoidance system caused by the lateral impact of the ship is the decision of the location of the collision avoidance system to the bridge position factor.