Bulk cargo wharf ship loading operation optimization method
It is a technology of operation optimization and wharf, which is applied in the directions of transportation, packaging, loading/unloading, etc. It can solve the problems of interruption of the loading operation process and the scheduling optimization of reclaimers and shiploaders without consideration, so as to avoid operation conflicts and shorten Effect of completion time of loading operation, improvement of efficiency of loading operation and service level
Active Publication Date: 2022-02-08
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
During the implementation of the loading plan, due to operational conflicts such as collisions between reclaimers on different tracks or crossing on the same track, and operational conflicts such as crossing of the shiploader on the same track, the process of loading operations will be frequently interrupted
Especially as the demand for ships increases, the traditional manual experience method to schedule the operation of the shipping equipment can no longer meet the current needs. How to schedule the loading operation more reasonably and effectively has become an urgent problem to be solved in the operation of the current bulk cargo terminal
However, the models proposed in the prior art do not take into account the optimization of reclaimer and shiploader operation scheduling under different loading schemes.
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[0136] Taking the first and second phase of wharf in a port area as an example, the proposed model and method are simulated and calculated. All the experimental computing environment in this paper is a computer with a 3.50GHz processor and 64GB RAM, and its simulation platform is Matlab 2017a and Gurobi 9.1.2. There are a total of 12 storage yard areas, 12 reclaimers and 8 ship loaders in the first and second phase terminals of a certain port area. Each storage yard area has 8 stacking positions and the distribution of corresponding product types, such as Figure 4 shown. Among them, the first-phase wharf yard is responsible for the needs of ships berthed at berths 100-103, and the second-phase wharf yard is responsible for the needs of ships berthed at berths 200-203. The data of the ship loader and the reclaimer are shown in Table 1, and the distance from the berth to the yard area is shown in Table 2. Each stacking position is 200 meters long, and the transport speed of t...
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The invention provides a bulk cargo wharf ship loading operation optimization method. The method comprises the following steps: establishing a mixed integer programming model for bulk cargo wharf ship loading operation scheduling optimization according to a bulk cargo wharf ship loading scheme and a ship loading operation process flow; based on the established mixed integer programming model, designing a Benders decomposition algorithm based on heuristic logic according to ship requirements, ship loading equipment and storage yard product distribution information; and based on a designed Benders decomposition algorithm, solving the established mixed integer programming model to obtain an optimized shipping operation scheduling scheme. According to the technical scheme, the shipping operation completion time of all ships can be shortened, a reasonable shipping scheme can be allocated to each ship, and the operation conflicts among the ship loaders and the operation conflicts among the reclaimers can be avoided. Meanwhile, according to the technical scheme, auxiliary decision making can be provided for bulk cargo wharf ship loading operation to a certain extent, and the method has important value for improving the bulk cargo wharf ship loading operation efficiency and the service level.
Description
technical field [0001] The invention relates to the technical field of ship operations, in particular to a method for optimizing bulk cargo terminal loading operations. Background technique [0002] With the rapid growth of the demand for dry bulk cargo, the ship loading operation is an important operation link in the operation of the bulk cargo terminal, and its rationality directly affects the operational efficiency of the bulk cargo terminal. The ship loader and reclaimer are the main ship loading equipment in the process of ship loading operation. In order to make full use of these shipping equipment, it is usually necessary to formulate multiple loading plans for each ship based on the needs and loading sequence of each ship, combined with the existing product inventory in the yard, that is, each plan includes the required products for each tank. stacking position. During the actual loading operation, different loading schemes allocate different reclaimers and loading...
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IPC IPC(8): B65G67/60
CPCB65G67/606
Inventor 张新宇李俊杰郭文强李润佛马宝山马瑞鑫姜玲玲
Owner DALIAN MARITIME UNIVERSITY