kanban system
اسلاید 1: Kanban system pedram houshangi 8525022 javad hajihoseini 8528007 Just-in-time
اسلاید 2: ContentsJust-in-time1Kanban2model13model24
اسلاید 3: We know JIT is … An integrated set of activities designed to achieve high-volume production using minimal inventories of raw materials, finished goods & work in process.
اسلاید 4: Types of WasteOverproductionWaitingTransportationInefficient processingInventoryUnnecessary motionProduct defectsS12-4© 1995 Corel Corp.
اسلاید 5: kanbanThe Kanban System is an information system that harmoniously controls the production of the necessary products in the necessary quantities at the necessary time in every process of a factory and also among companies, which is known as the JIT production.[Monden]A Kanban is a tool to achieve JIT production. It is simply a card which is usually put in a rectangular vinyl envelope.[Monden]
اسلاید 6: kanbanInformation system to develop JIT systemA kind of “Pull System”What is neededWhen it is neededThe amount needed
اسلاید 7: Key ObjectiveDeliver the material just-in-time to the manufacturing workstationsPass information to the preceding stage as to what and how much to produce
اسلاید 8: Kanban Operation
اسلاید 9: Kanban Type Primary KanbanWithdrawal Kanban (Conveyor Kanban)Production KanbanSupply KanbanProcurement KanbanSubcontract KanbanAuxiliary Kanban
اسلاید 10: Primary Kanban Travels from one stage to another among main manufacturing cells or production preparation areasWithdrawal kanbanProduction kanban
اسلاید 11: Supply Kanban Travels from a warehouse or storage facility to a manufacturing facility
اسلاید 12: Other Kanban Procurement KanbanTravels from outside of a company to the receiving areaSubcontract KanbanTravels between subcontracting unitsAuxiliary KanbanExpress Kanban, emergency Kanban, Kanban for a specific application
اسلاید 13: General Kanban Control
اسلاید 14: Kanban Control Three types of controlSingle-kanban systemDual-kanban systemSemi-dual-kanban system
اسلاید 15: Single Kanban System
اسلاید 16: Dual Kanban System
اسلاید 17: Semi-Dual Kanban System
اسلاید 18: Comparison of three kanban system types
اسلاید 19: Production CardsProduction CardsMove CardsMove CardsMove CardProduction CardOutbound StockpointInbound Stockpoint Two Card Kanban System
اسلاید 20: Kanban rulesThe subsequent process should withdraw the necessary product from the preceding process in the necessary quantities at the necessary point in time.
اسلاید 21: Kanban rulesThe preceding process should product in the quantities withdrawn by the subsequent process.Defective product should never be convened to the subsequent process.The number of kanban should be minimized.
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اسلاید 23: Kanban rulesKanban should be used to adapt to small fluctuation in demand .
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اسلاید 25: KANBANJUST_IN_TIME
اسلاید 26: www.thmemgallery.comCompany Logo
اسلاید 27: کانبان و روابط آن با دیگرعواملتعیین تعداد کانبانسیستم با پارامتر های غیرقطعی سیستم با پارامتر های قطعیشبیه سازیتحلیلیشبیه سازیتحلیلیمقالات مرتبط با کانبانسیستم با پارامتر های غیر قطعیسیستم با پارامتر های قطعیتحلیلیشبیه سازیتحلیلیسایر تکنیک هاکانبان ثابتکانبان ثابتکانبان دینامیک
اسلاید 28: Method 1 A linear programming model for fixed Kanban determination We use an integer linear programming method to Calculate the number of kanban for each stage ,aiming to minimise total inventory cost for a given planning horizon
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اسلاید 30: Parameters and variables
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اسلاید 34: Production quantity at each stage for each period = MIN {A, B, C{A = number of detached Kanbans available at the start of each period,B = equivalent quantity of raw material available at the start of each period,C = production capacity available at each period.
اسلاید 35: Method 2 —A linear programming model for flexible Kanban determination In this method, the number of kanbans for each stage can vary between production periods at any given planning horizon. A linear programming method has been developed which determines the number of kanbans for each stage, through minimising total inventory cost for the planning horizon.
اسلاید 36: Objective function
اسلاید 37: Numerical exampleSoftware:Industrial LINGO /pc-release3.08000 constraints&16000 variables
اسلاید 38: Results for numerical example using method 2Holding cost=862.0Backlog cost=9.0Kanban change cost=9.0Total cost=871.0
اسلاید 39: a=0.2 CK=1 t=3..8 K(i,0)=for method 1 no.stations=3-4-5
اسلاید 40: Cost reduction for Method 2 at different demand variance situations.
اسلاید 41: Cost reduction=%6.4 [N(20,3)]Effect of demand mean variation on total cost
اسلاید 42: Effect of capacity of stations on costs
اسلاید 43: Total cost for different values of alfaI=5T=8D=N(15,3)a=0.2,0.4,0.6,0.8,1.0,1.2Reduction in total cost for Method 2 for different values of alfa
اسلاید 44: بررسی اثر تغییرات کانبان بر پیمانکار فرعیX(I,T)=(روش اول)(0,14,2,14,2,14,2,14)X(I,T)=(روش دوم)(0,0,4,13,0,13,0,13)حالت ایستا
اسلاید 45: www.thmemgallery.comCompany LogoX(I,T)[METHOD 2]X(I,T)[METHOD1]الگوی تقاضاشماره(0,0,0,11,2,11,2,11)(0,0,0,11,5,11,5,11)N(15,3)1(0,14,0,10,0,10,0,10)(0,12,0,12,0,12,0,12)N(15,3)2(0,14,0,10,0,10,0,10)(0,12,0,12,0,12,0,12)N(15,3)3(0,3,4,12,1,12,1,12)(0,2,5,11,5,11,5,11)N(15,3)4(0,0,4,13,0,13,0,13)(0,0,4,12,4,12,4,12)N(15,3)5(1,6,10,6,7,6,7,6)(0,7,9,7,9,7,9,7)N(15,6)6(21,7,21,7,16,7,16,7)(16,12,16,12,16,12,16,12)N(15,6)7(10,12,10,12,4,12,4,12)(7,12,7,12,7,12,7,12)N(15,6)8(0,2,7,8,5,8,5,8)(0,3,6,8,8,8,8,8)N(15,6)9(0,13,6,11,2,11,2,11)(0,14,2,14,2,14,2,14)N(15,6)10(0,0,0,0,8,5,8,5)(0,0,0,0,8,8,8,8)N(15,9)11(22,17,21.5,17.5,9.5,17.5,9.5,17.5)(21,12,21,12,21,12,21,12)N(15,9)12(13,12,13,12,5,12,5,12)(9,12,9,12,9,12,9,12)N(15,9)13(0,6,5,11,2,11,2,11)(0,4,6,10,6,10,6,10)N(15,9)14(4,15,6,14,2,14,2,14)(4,15,5,15,5,15,5,15)N(15,9)15
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اسلاید 47: Thank You !
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