Layouts Flashcards
What kind of layouts are there? What is the difference between process and product oriented layouts?
Process oriented layout:
- Implementation based on the type of machine
- Products move from one operation to another
- specialized workers
Product oriented layout:
- clusters of machine that can do a range of products
- simple flow
- polyvalent workers
Types of layouts:
1) Process industry layout
- Fixed layout
- Continuous process
- Integrated control systems
- Feedback loops and state change control
2) Assembly lines
- Fixed production cycle times
- Challenge: managing product variety
-Capacity management
- Think of how a car gets made in an assembly line
3) Fixed position layout
- Location driven
- historical significance
- airplanes, oilrigs
- major constructions sites
What kinds of different industry classifications are there? On what criteria are they based on?
Different industry classifications:
1) Process : few in and few out
- ex Mcdo
2) Explosive: Few in and many out
- ex bakery
3) Square: many in and many out
ex: french restaurant
4) Implosive: many in and few out
What is the difference between CRAFT and SLP methods, what are the similarities between them?
Method Craft:
- used for existing layouts, the material for handling are already there
- suitable for stable environments
- Does not guarantee an optimal solution
- quantitative approach
- focuses on minimizing transportation costs
SLP layout:
- aim to collect qualitative data and movements and flows. can be difficult to obtain as layout doesnt exist yet
- Takes into account importance of having some departments next to each other
- driven by trial and error method
- based on special closeness score
- focuses on understanding relationship interactions between two areas
- suitable for more dynamic areas
Similarities:
- Both methods aim to ptimize layout in goal to reduce costs, improve efficiency and more
- Both methods follow a iterative process where we can go back and adjust
- Both of them are data driven
What is the meaning of cycle time when doing assembly line balancing?
Cycle time of an assembly line:
Always determined by the station taking the longest time. There will also be idle time while ressources are not occupied in the other stations. Goal is to minimize idle time, assigning all the tasks to work stations so that every station doesnt have more task then what they can do.
What is the fundamental idea of the PFA?
To form groups some parts/tasks may not fit in the groups, what a company could do with these exceptions not fitting in the groups?
What is PFA: Production flow analysis consist of designing the simplest possible system, find constraint which makes it impractical, eliminate constraints, introduce simple systems.
For group analysis, Divides departments into groups which complete all
the parts in the family of parts they make, and are
provided with all the facilities needed to do so.
if the exceptions do not fit, then:
- combine to groups into 1
- relocation of machine
- special services centers
