【正文】 273415621594164020832125218731253188328115621594164022322277234346 RCCP 05001000150020xx2500300035001 2 3 4 5 6 7WC1WC2WC347 RCCP A11 A12 A22 A21 WC1 WC2 P1 P2 B11 B12 B22 B21 P1 P2 M1 M2 C11 C12 C22 C21 WC1 WC2 M1 M2 RCCP MPS BOR 48 Backward and Forward Scheduling OP N OP N1 OP 1 ……… Forward scheduling Backward scheduling Order Due Date Order Start Date OP N1 49 Infinite and Finite Loading Infinite Finite Capacity Capacity 050100150200P e r i o dLoadLoad 104 120 180 130 97 125 110 1501 2 3 4 5 6 7 8050100150200P e r i o dLoadLoad 110 120 120 120 105 120 110 1201 2 3 4 5 6 7 850 CRP Definition ? The function of establishing, measuring, and adjusting limits or level of capacity ? The process of determining in detail the amount of labor and machine resources required to acplish the tasks of production [APICS Dictionary] 51 Capacity Requirements Planning Capacity Requirements Planning Planned orders Released orders Routing Work center Work center load report Revised schedule 52 Manufacturing Order and Routing ? Manufacturing Order (Work Order) – A document, group of documents, or schedule identity conveying authority for the manufacture of specified parts or products in specified quantities. [APICS dictionary] ? Routing – A set of information detailing the method of manufacture of a particular item. It includes the operations to be performed, their sequence, the various work centers to be involved, and the standards for setup and run (times). [APICS dictionary] 53 Inputs Needed for CRP ? Open Order File ? Planned Order Releases ? Routing File – operations to be performed – sequence of operations – work centers to be used – possible alternate work centers – tooling needed at each operation – standard times: setup times, run times ? Work Center File – move time, wait time, queue time ? Shop Calendar 54 Lead Time ? Manufacturing LT – queue, setup, process, wait, move ? Average Q – (SU+RT)1+(SU+RT)2+…+(SU+RT) n queue setup process wait move 1 2 n W/C …….. WIP 55 Expected Queueing Time Activation Queueing Time Assumption: M/M/1queueing system E(Q) = a/[s(as)] 。 前置時間 : 3期間 0 1 2 3 4 5 6 7毛需求排程到貨預(yù)估在手量計劃核發(fā) 2 4 0 0料件 122固定數(shù)量訂購 。 前置時間 : 4期間 0 1 2 3 4 5 6 7毛需求排程到貨預(yù)估在手量計劃核發(fā) 6 0 0 061 CRP Computation ? Setup time putation for planned order ? Run time putation for planned order ? Setup time putation for open order ? Run time putation for open order ? CRP load report 62 Planned Order Releases W e e kPa r t 1 2 3 4 5 6 71001101211222004002400600025040000150500240002004000600030040024000150400240002504000063 Setup Time Matrices for FG 週零件 1 2 3 4 5 6 7W C 1 100110121122合計300003030152507030150751203015250703015004530152575145301525070W C 2 100110121122合計010025350100010010150250100253501015025010001001015025W C 3 100110121122合計0015015000303000150150003030001530450015015000303064 Run Time Matrices for FG 週零件 1 2 3 4 5 6 7W C 1 100110121122合計5000005006252006000142537520003000357550025060001350750200009503752006003000417562520060001425W C 2 100110121122合計03000450048000300003000375600097503000450048000300600090003000030003006000900W C 3 100110121122合計006000600000900900006000600000210021000060090015000060006000002100210065 Capacity Req. of Planned Releases 週1 2 3 4 5 6 7W C 1 530 1495 3695 1420 995 4320 1495W C 2 4835 310 1000 4835 925 310 925W C 3 615 930 615 2130 1545 615 213066 Capacity Req. by Released Orders pa r t W o r kc e n t e rw e e k Set up t i m e R un t i m ec a l c ul a t i o nR un t i m e T o t a l t i m e1001101101211211221221211213112121230101525157530250 ? 2. 5400 ? 0. 75400 ? 0. 52400 ? 0. 252400 ? 0. 256000 ? 0. 56000 ? 0. 75625300200600600300045006553102156256153075453067 Capacity Requirements Plan for FG 週1 2 3 4 5 6 7W C1 4885 1710 3695 1420 995 4320 1495W C2 5145 925 1000 4835 925 310 925W C3 615 5460 615 2130 1545 615 213068 CRP 0100020xx30004000500060001 2 3 4 5 6 7WC1WC2