摘要
基于计时Petri网和极大代数理论构建了串行生产线的稳态方程,并对其进行了周期分析。以此为基础,建立了串行生产线生产率控制模型。应用变分法求解模型,并在Matlab平台上对模型进行了仿真运算。结果表明,在满足生产工艺要求的前提下,要保证生产线的高生产率,生产线上瓶颈工作站的位置应尽量靠近生产线尾端;生产线上各工作站的生产率应呈依次下降的趋势;每个缓冲区理想的在制品库存量应尽量接近其初始库存量。在进行串行生产线设计时,这些结论具有实际参考价值。
The steady state equation of a transfer line is proposed and its periodical properties is analyzed based on timed Petri nets and max algebra. A control model of production rates is also introduced, and to which the derivation method and the Matlab simulation tools are applied for its solution. Then under the permissions of processing constraints, such conclusions which may provide practical guidelineswhen designing a transfer line, are reached that the allocation of the bottle-neck workstation should near the end of the transfer line as much as possible; the production rates of all workstations should descendorderly and each ideal WIP (work-in-process)storage capacity should be near its original amount as possible.
出处
《机械科学与技术》
CSCD
北大核心
2005年第4期408-411,共4页
Mechanical Science and Technology for Aerospace Engineering
