A GENERIC CONCEPTOF A MANUFACTURING 课件.ppt

Gantt-chart 11 12 11 12 21 22 21 32 31 42 13 52 32 22 33 23 51 ij ij operation j of order i of product P operation j of order i of product S 41 31 10 0 20 30 40 精品文档 The POLCA Control System Paired-cell Overlapping Loops of Cards with Authorization Relates the releases on the shop floor to a push-signal and a pull-signal Suri, Quick Response Manufacturing, 1998 Krishnamurthy, 2004 精品文档 For P1 to start working on the order, the order needs to be authorized and P1 should have a P1/F2 POLCA card 2 P 1 F2 P1/F2 LOOP MATERIAL IN P1’S INPUT BUFFER P1/F2 F2’S INPUT BUFFER P1 AVAILABLE P1/F2 CARDS P1/F2 P1 Cell Team’s Decision Process (after Authorization) 精品文档 2 P 1 F2 P1/F2 LOOP MATERIAL IN P1’S INPUT BUFFER P1/F2 F2’S INPUT BUFFER P1 AVAILABLE P1/F2 CARDS P1 Cell Team’s Decision Process (after Authorization) For P1 to start working on the order, the order needs to be authorized and P1 should have a P1/F2 POLCA card 精品文档 2 P 1 F2 P1/F2 LOOP MATERIAL IN P1’S INPUT BUFFER P1/F2 F2’S INPUT BUFFER P1 AVAILABLE P1/F2 CARDS P1 Cell Team’s Decision Process (after Authorization) For P1 to start working on the order, the order needs to be authorized and P1 should have a P1/F2 POLCA card 精品文档 For F2 to start working on the order, the order needs to be authorized and F2 should have an F2/A4 POLCA card F2/A4 LOOP P1/F2 LOOP P1 A4 F2 P1/F2 F2/A4 F2/A4 F2/A4 AVAILABLE P1/F2 CARDS P1/F2 F2 Cell Team’s Decision Process (after Authorization) 精品文档 A GENERIC CONCEPTOF A MANUFACTURING SYSTEMFOR VARIOUS PLANNING AND EXECUTION SYSTEMS Nico J. Vandaele University of AntwerpDepartment of Technology Managementnico.vandaele@ua.ac.be 精品文档 Basic Dimensions of Planning Material Time Resources 精品文档 Lead Time Distribution 0 0,01 0,02 0,03 0,04 0,05 1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 f(t) Lead Time 精品文档 Lead Time Distribution 0 0,01 0,02 0,03 0,04 0,05 1 5 9 13 17 21 25 29 33 37 41 45 49 5