Research on Hydrodynamic Characteristics of Bridge Anti-ship Collision Interception System
Based on the ship collision prevention project for the non-navigable bridge of a cross-sea bridge,an anti-ship collision interception system was proposed.The motion response amplitude operator of the mooring buoys was calculated by the frequency domain method.The dynamic response characteristics of the ship interception system under the combined action of wind,waves,and current were studied using the time domain method,and the influence of different effective wave heights on the dynamic response characteristics was discussed.The results show that:1)The structure of the mooring buoys is reasonable and its natural frequency can avoid the common waves frequency range,avoiding the occurrence of resonance;2)Under extreme sea conditions,the motion response extremes of the mooring buoys do not lead to overturning phenomenon.The minimum safety factor of the anchor chain meets the specification requirements;3)Under equivalent wind and current conditions,there is a significant linear increase of the heave,pitch,and roll motion response extremes and offshore chain tension extremes of the mooring buoys with the increase of effective wave height.
万方数据
维普
