Layout and Line Balancing Flashcards
Focused Facilities are appropriate when?
Similar product has a reasonable and stable demand. they are designed to match both the customer product requirement and demand; note that no extra resources or wasted resoused existe and it requires a takt time
Takt Time is?
the total work time available divided by units required to satisfy customer needs
Cycle time is?
Production time available per day/ units required per day
whats the equation for the theoretical minimum number of workstations?
Time for tasks (SUM)/ Cycle time
To calculate Efficiency?
Total task times / The produce of the ACTUAL number of workstations X largest assigned cycle time
To calculate idle time
Actual number of workstations x largest cycle time - sum of task times
What is a fixed Position layout? Example?
the project remains in one place and the workers come to the work area? Operating table, building a house, ship or bridge
what are challenges of a fixed position laybout?
Limited space at site ; workers and equipment must come to site
process oriented layout? example?
can handle a wide variet of products or services. this is typically low vol. high variety. each part goes under a different sequence of operations. EX: ER room and 2 patients having two routes
what are challenges of a process oriented layout?
minimizing the costs of travel. and scheduling across departments
What is a work cell? example?
Smallest of the three focused facilities. it reorganizes people so that they can focus on making a singlue produc. this is used when volume warrents a special arrangement of machinery and equipment ex: rental apartments having the show house near the oddive or a drive thru covid shot fair
what are advantages of a work cell?
travel shorter, complete faster, occupy less space, increased utilization
product orientated layout (assembly line?) advantages and disadvantages being?
ad:
rapid throughput and high utilization
challenges being :
work stoppage at any tie up points; line balancing requred; low variety and high and consistent volume is required
what are the repetitive production assumptions?
- volume is adequate for high utilization
- product demands is stable enough to justify the high investment of specialized equipment
- product is standardized or approaching a phase of its life cycle that justifies investment in specialized equipment
- supplies of raw materials and components are adequate and of uniform quality
examples: fabrication line builds components fro a part like building a fridge
assembly line puts the fabricated parts together as part of a series of workstations
what are 5 important considerations for layout deign?
- high utilization of space equip and people
- improved flow of info, materials and people
- improved EE morale and safe working conditions
- improved customer client interaction
- Flexibility (What ever the layout is now, it will need to change)