Discharging method for shipyard steel plate storage yard

Abstract

The invention discloses a discharging method for a shipyard steel plate storage yard, wherein the discharging method for the shipyard steel plate storage yard comprises the steps: S1, taking a steel plate stacking amount as a source node, taking a discharging plan as a target node, checking whether a path directly reaching the target node exists in multiple information element constraints, if the path directly reaching the target node exists in multiple information element constraints, directly generating the discharging plan, and if the path directly reaching the target node does not exist in multiple information element constraints, starting node selection, and releasing a forward ant; S2, starting from a source node production plan, enabling the forward ant to randomly select a next node according to a multiple information element constraint table; S3, adding node information and path information into forward ant information; S4, selecting the next node of the forward ant according to the state transition probability; and S5, judging whether the node is a target node discharging plan or not, if the node is not a target node discharging plan, turning to S3, and if the node is a target node discharging plan, directly generating a discharging plan, wherein the multiple information element constraint table comprises a production plan node, a processing line capacity node and a feeding node. The method has the advantages that the steel plate residence time is reduced.

Description

technical field [0001] The invention relates to the technical field of a steel plate discharging method in a shipyard, in particular to a discharging method for a steel plate stockyard in a shipyard. Background technique [0002] Steel plates are the main raw materials for ship products. A ship can range from several thousand tons to tens of thousands of tons. Usually, the purchase cost accounts for 30% to 40% of the purchase cost of ship products. Its types mainly include medium-thick steel plate, flat steel, spherical flat steel, equilateral angle steel, unequal angle steel, round steel, etc. [0003] As the overall level of logistics supply in my country is not high at present, the steel plate storage yard has become an indispensable part of the production process of the shipyard. It is the site for the feeding, classification and stacking, storage and supply of steel raw materials in the entire shipyard, and is the core of the entire assembly production system. The sourc...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the domestic shipyards have not carried out scientific planning for the steel plate storage yard, and it is easy to cause some steel plates to stay in the steel plate warehouse for too long in the links of steel plate discharge and stacking, and the times of hoisting and picking the specified steel plate are too many As a result of time-consuming and labor-intensive problems, a method for discharging steel plates in shipyards is provided. The method for discharging steel plates in shipyards includes:

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