22-03-2012, 02:46 PM
MODELING AND ANALYSIS OF MANUFACTURING SYSTEMS
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DEFINITION
A FLEXIBLE MANUFACTURING SYSTEM (FMS) IS A SET OF NUMERICALLY CONTROLLED MACHINE TOOLS AND SUPPORTING WORKSTATIONS CONNECTED BY AN AUTOMATED MATERIAL HANDLING SYSTEM AND CONTROLLED BY A CENTRAL COMPUTER
ELEMENTS OF FMS
AUTOMATICALLY REPROGRAMMABLE MACHINES.
AUTOMATED TOOL DELIVERY AND CHANGING
AUTOMATED MATERIAL HANDLING
COORDINATED CONTROL
FMS FEATURES
REDUCED VARIABLE COSTS AND THROUGHPUT TIME LEAD TO ENHANCED MANUFACTURING COMPETITIVENESS
ELIMINATION OF STARTUP CYCLES LEAD TO STANDARIZED PERFORMANCE
MODULAR DESIGN
MANUFACTURING FLEXIBILITY
BASIC
MACHINE (VARIETY OF OPERATIONS)
MATERIAL HANDLING (PART MOBILITY AND PLACEMENT)
OPERATION (VARIETY OF OPERATIONS PRODUCING SAME PART FEATURES)
SYSTEM
PROCESS (VARIETY OF PARTS PRODUCIBLE WITH SAME SETUP)
ROUTING (ABILITY TO USE DIFFERENT MACHINES UNDER SAME SETUP)
PRODUCT (CHANGEOVER)
VOLUME (PRODUCTION LEVEL)
EXPANSION (ADDED CAPACITY)
AGGREGATED
PROGRAM (UNATTENDED RUNNING)
PRODUCTION (RANGES OF PARTS, PRODUCTS, PROCESSES, VOLUME, EXPANSION)
MARKET (COMBINATION OF PRODUCT, PROCESS, VOLUME AND EXPANSION)