石炭ふ頭における荷役運搬システムのORに基づく最適設計 : モンテカルロ法によるシミュレ-ション解析

With the increase of the demand for coal, it has been important to establish the optimum design method for materials handling-carrying system in coaling wharf. In this study, the fundamental theory to find out the optimum design method and the management and operation method for overall materials handling-carrying system in coaling wharf is constructed. This system includes ships, unloader, belt conveyor, stacker and various equipments in coal yard and so on. In this report, as the first step, an analysis model was made from the investigation results of actual coaling wharf, and a simulation analysis method for materials handling-carrying system was established on the basis of OR theory. In the analysis, Monte Carlo method was used and ships were made to arrive at berth uncertainly. By this method, the arrival and departure state of ships, the working state of materials handling-carrying machines and the storage and transportation state of coal were simulated. The conditions taken into consideration especially in the simulation are the restriction to arrival and departure time of ships, the restriction to operating time of materials handling-carrying machines and the maximum coal storage capacity in yard. Besides, the analysis results were dealt with statistically because materials handling-carrying system in coaling wharf includes many probable factors. From these results, the average number of ships staying in berth, the average waiting time of ships in berth etc. are obtained. By using this analysis method, the guide to make the distribution plan of ships and the performance and arrangement of materials handling-carrying machines and so on most suitably may be given.departmental bulletin pape