Research on reachable dynamic charts considering ship seaworthiness conditions
Due to the influence of tidal effects and marine environmental factors,the current method of relying on the water depth of nautical charts combined with tide tables to ensure the safety of navigation of ships urgently needs to be improved.In order to maximize the space utilization of navigable sea areas under the premise of safety,this paper proposes a method for obtaining reachable dynamic charts that take into account the seaworthiness conditions of ships.On the instantaneous water depth model,considering the seaworthiness conditions of the ship seaworthiness depth and the seaworthiness time window,the dynamic charts of the maximum reachable range of ships of different tonnage at different speeds are obtained.Based on this method,this paper constructs a dynamic nautical chart of the coastal waters of the South Yellow Sea,which can provide water depth information for ships entering port by tide,expand the navigation capacity of the channel,improve the navigable range of ships,and improve the space utilization of the sea area.
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