With the rapid development of shipping industry,the volume of maritime logistics is also increasing.Tugboats are the first service station for ships,and the working efficiency tugboats directly affects the ship’s att...With the rapid development of shipping industry,the volume of maritime logistics is also increasing.Tugboats are the first service station for ships,and the working efficiency tugboats directly affects the ship’s attendance rate and the port’s service efficiency.Some domestic ports use one-way channel design due to the limitations of geographical position and natural factors.However,due to the particularity of the channel,the ships are entering and leaving the port in a disorderly manner and the tugboats are running empty,which causes problems in the port.Therefore,the port is in urgent need of improving the cooperative dispatching ability of one-way channel and tugboats.展开更多
According to the passage rules of ships in the bidirectional channel,the realistic conditions of the limited number of tugboats in the port are taken into account.This paper studies the problems faced in the integrate...According to the passage rules of ships in the bidirectional channel,the realistic conditions of the limited number of tugboats in the port are taken into account.This paper studies the problems faced in the integrated scheduling optimization in terms of ship arrival and departure and tugboat allocation in two-way channel.A mixed integer programming model with minimum waiting time was established,and a heuristic algorithm was designed to solve the problem.Experimental results show that the model and algorithm in this paper can effectively solve such problems and provide support for port management.展开更多
文摘With the rapid development of shipping industry,the volume of maritime logistics is also increasing.Tugboats are the first service station for ships,and the working efficiency tugboats directly affects the ship’s attendance rate and the port’s service efficiency.Some domestic ports use one-way channel design due to the limitations of geographical position and natural factors.However,due to the particularity of the channel,the ships are entering and leaving the port in a disorderly manner and the tugboats are running empty,which causes problems in the port.Therefore,the port is in urgent need of improving the cooperative dispatching ability of one-way channel and tugboats.
文摘According to the passage rules of ships in the bidirectional channel,the realistic conditions of the limited number of tugboats in the port are taken into account.This paper studies the problems faced in the integrated scheduling optimization in terms of ship arrival and departure and tugboat allocation in two-way channel.A mixed integer programming model with minimum waiting time was established,and a heuristic algorithm was designed to solve the problem.Experimental results show that the model and algorithm in this paper can effectively solve such problems and provide support for port management.
