03_Design of Production Systems Flashcards
What is a Work System?
- smallest organizational unit of the production system
Examples for Master Data
- capacity info
- bill of materials
- process plans
Examples for Transaction Data
- demand data
- volumes, due dates
Examples for Feedback
- quality produced
- due date adherence
3 types of production systems
- Job Shop
- Manufacturing Cells
- Flow Shop
Job Shop
Functional Layout
- spatial concentration of similar work systems
Flow Shop
Object layout, uniform material flow
- arrangement of work systems according to the work flow
Cellular manufacturing
Object Layout, production-dependant material flow
arrangement of product families to machine groups
Production Segment
sybsystem of the production system that is organized according to specific layout type
Job Shop
Characteristics
- more flexible
- high workload fluctuation
- low production vol
- low division of labout
- high product variety
Flow Shop Characteristics
- more efficient [assembly line sequence]
- low workload fluctuation
- low product variety
- high division of labout
- high production vols
Cellular Manufacturing
Characteristics
- medium workload fluctuation, production volume, product variety, division of labour
- often combinations of layout types to leverage benefits of both systems
Pros for Job Shop
3 items
- flexibility
- low monotony of work
- investment (automation) is low
Suitable for one-of-a-kin and small series appications
Facility layout planning
(determining in-plant locations)
- grid division of the floor space
- distance measure: mostly rectangular along the in-plant traffic lanes
Note:
- Aerial vs. rectangular distance
Objective of Factory Layout
Job Shop
- Minimization of the entire proxy criterion
- proxy defined as product of transport of quantity and transport distance summed up over all types of goods