面向負荷的生產控制與jit生產(英文版)-資料下載頁
2025-01-06 18:42本頁面
【正文】 the data flow of the control system1. The method of basic throughput diagrams is extended(Figure 1 with diagrams)2. Operation Throughput Element3. Planned and actual average lead time are puted for each inventory as well as average duedate dev. For release,input, output and deliveryEntry Release Input Output DeliveryDisposition Indirect Direct DownstreamUpstreamOpenCycleTotal lead timeWait after operation Transport Wait before operation Setup RunInteroperation time Process timeDirect Load time.4. Pumpbuilding factory characteristics products 9000 pumps Manufactured parts 26000 different itemsManpower(Job shop) 180 persons Work centers 130 (mainly 2 shifts)Orders 350 per week Operations 4,5 per order (Max 20)Run times 3,7 per operation Lot sizes 30 per order(11000)Factory began to work with the new system in 1987Improvement (pared 1991 with 1987)Inventory was twice as high in 1987Most delivery higher than in 1987Cycle lead time(release ~ delivery)were cut from almost 8weeks to 5weeksDuedate deviations to 1 week (lateness)Total lead time(entry~delivery) 14weeks to 9 weeksConclusionLoadoriented manufacturing control system enables the factory 1. Reducing lead time and inventories 2. Keeping actual lead time on a planned level 3. Meeting the planned due dates 4. Maintain an appropriate workcenter utilizationresults in safer scheduling foundation for JIT production演講完畢，謝謝觀看！
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