Candid Comparison of Operational Management Approaches.ppt
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1、Candid Comparison of Operational Management Approaches,James R. Holt, Ph.D., PE, Jonah-Jonah Washington State University-Vancouver Engineering Management Program,Purpose for Presentation,Understand different approaches to managing repetitive production processes Highlighting several key production m
2、easurements Comparing performance on an equal playing field Highlight consistent key variables Draw some conclusions of value,The Situation,Describe many different production management approaches into generally acceptable methods Create a generic simulation model and test procedure that is fair to
3、all management approaches Provide sensitivity analysis to make fair comparisons,Fairness Paramount,Production process straight forward No disassembly, no assembly, Parallel machines accept any work No set-ups No people or logistics problems No priority work Independent - No artificial slow downs Ava
4、ilable material available immediately Tolerant customer that buys all immediately,The Challenge,Production Model 10 machines of 6 types - mostly in parallel Production times mostly balanced Double Constraint Free flow of products on any path Normal distribution on production 90% productive capacity
5、Repetitive scheduled arrivals,Production Simulation Model,Arrival Schedule,Management Approaches,Traditional push manufacturing Push with batch size of 10 Work cells Just-In-Time with kanban of 1 Just-In-Time with kanban of 3 Lean manufacturing Drum-buffer-rope Agile manufacturing,Measurements Based
6、 on 20 Trials of 100 hrs,Average work-in-process (alpha=0.02) Average flow time (in process only) Average efficiency of all machines Average produced in 100 hours Profit based on $80 per part and $30,000 operating expense per 100 hours ROI based on annualized investment ($50,000 per 100 hours) plus
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