An Optimization of quantity for Loading: A case study of Thanapiriya Co., Ltd.
The purpose of this research is toarrangement suitable for loading in the transportation and product distribution by using the product arrangement method by considering the volume of goods of the truck for transportation to various branches of Thanapiriya Public Company Limited, which the sample group is the type of each vehicle, divided into 4 small wheels, 6 medium wheels trucks , 6 big wheels, 6 extra large wheels and 10 wheels with different payloads of 24 vehicles, and the goods transported between the 21 branches and 12 district customers by considering the average and the standard deviation of the volume of remaining space. the problem model using the Bin Packing Problem and the best way to find the optimization answer by comparing 3 methods: LP Simplex, Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) to find suitable trucks for the quantity of products and remaining minimal space in the cabinet.
The results of the research found that when comparing the remaining space from the original model to the mathematical analysis of 3 methods, can reduce the space in the truck and reduce the number of trucks from the original appearance as follows. Reducing space in the truck from the original analyzing range 1, LP Simplex can be reduced to 1,831.7 m3.
The method of PSO can be reduced by 1,685.58 m3 and the GA can be reduced by 1,699.47 m3. Analysis of range 2, LP Simplex can reduce 1,703.98 m3, the PSO can be reduced by 1,400.58 m3 and the GA can reduce 1,511.21 m3. Reducing of the number of trucks from the old model, by analyzing the first phase at 15 cars and analysis of the second phase at 28 cars.
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