This paper focuses on the optimization method for multi-skilled painting personnel scheduling.The budget working time analysis is carried out considering the influence of operating area,difficulty of spraying area,mul...This paper focuses on the optimization method for multi-skilled painting personnel scheduling.The budget working time analysis is carried out considering the influence of operating area,difficulty of spraying area,multi-skilled workers,and worker’s efficiency,then a mathematical model is established to minimize the completion time. The constraints of task priority,paint preparation,pump management,and neighbor avoidance in the ship block painting production are considered. Based on this model,an improved scatter search(ISS)algorithm is designed,and the hybrid approximate dynamic programming(ADP)algorithm is used to improve search efficiency. In addition,the two solution combination methods of path-relinking and task sequence combination are used to enhance the search breadth and depth. The numerical experimental results show that ISS has a significant advantage in solving efficiency compared with the solver in small scale instances;Compared with the scatter search algorithm and genetic algorithm,ISS can stably improve the solution quality. Verified by the production example,ISS effectively shortens the total completion time of the production,which is suitable for scheduling problems in the actual painting production of the shipyard.展开更多
为协调港口航道与泊位资源,提高港口船舶调度效率,从单向航道出发,根据先后调度的2艘船舶的进出港方向和所停靠泊位的远近区分两船间的相对关系,建立以总等待时间最少为目标的调度优化数学模型。设计适用于港口船舶调度优化的模拟退火...为协调港口航道与泊位资源,提高港口船舶调度效率,从单向航道出发,根据先后调度的2艘船舶的进出港方向和所停靠泊位的远近区分两船间的相对关系,建立以总等待时间最少为目标的调度优化数学模型。设计适用于港口船舶调度优化的模拟退火多种群遗传算法(Simulated Annealing and Multiple Polulation Genetic Algorithm,SAMPGA),模拟某港口不同调度规模的船舶进行仿真试验,与先到先服务规则(First Come First Served,FCFS)和简单遗传算法(Simple Genetic Algorithm,SGA)进行比较,证明SAMPGA在解决航道和泊位协调调度问题上的适用性。结果表明:在现有的调度规则下对航道和泊位进行协调调度能减少船舶的等待时间和总调度时间,但实际调度规则需要考虑的限制因素更多,需对模型作进一步优化。展开更多
基金Sponsored by the Ministry of Industry and Information Technology of China(Grant No.MIIT[2019]359)。
文摘This paper focuses on the optimization method for multi-skilled painting personnel scheduling.The budget working time analysis is carried out considering the influence of operating area,difficulty of spraying area,multi-skilled workers,and worker’s efficiency,then a mathematical model is established to minimize the completion time. The constraints of task priority,paint preparation,pump management,and neighbor avoidance in the ship block painting production are considered. Based on this model,an improved scatter search(ISS)algorithm is designed,and the hybrid approximate dynamic programming(ADP)algorithm is used to improve search efficiency. In addition,the two solution combination methods of path-relinking and task sequence combination are used to enhance the search breadth and depth. The numerical experimental results show that ISS has a significant advantage in solving efficiency compared with the solver in small scale instances;Compared with the scatter search algorithm and genetic algorithm,ISS can stably improve the solution quality. Verified by the production example,ISS effectively shortens the total completion time of the production,which is suitable for scheduling problems in the actual painting production of the shipyard.
文摘为协调港口航道与泊位资源,提高港口船舶调度效率,从单向航道出发,根据先后调度的2艘船舶的进出港方向和所停靠泊位的远近区分两船间的相对关系,建立以总等待时间最少为目标的调度优化数学模型。设计适用于港口船舶调度优化的模拟退火多种群遗传算法(Simulated Annealing and Multiple Polulation Genetic Algorithm,SAMPGA),模拟某港口不同调度规模的船舶进行仿真试验,与先到先服务规则(First Come First Served,FCFS)和简单遗传算法(Simple Genetic Algorithm,SGA)进行比较,证明SAMPGA在解决航道和泊位协调调度问题上的适用性。结果表明:在现有的调度规则下对航道和泊位进行协调调度能减少船舶的等待时间和总调度时间,但实际调度规则需要考虑的限制因素更多,需对模型作进一步优化。