Homework Midterm
• A factory that produces three
types of products (ProdA,
ProdB, ProdC)
Source
• ProdA follows the
manufacturing process:
• S1S2S3S4Insp
• ProdB follows the
manufacturing process:
Source
• S4S2S3S1Insp
Source
• ProdC follows the
manufacturing process:
• S2S3Insp
Station 1
Station 2
Inspection
Station 3
Station 4
Sink
Homework Midterm
• If a product fail to pass the
inspection, it will return to
different step of the process
• ProdA has a fail probability
20%, and return to S3.
• ProdB has a fail probability
10%, and return to S4.
• ProdA has a fail probability
5%, and return to S2.
Source
Station 1
Station 2
Inspection
Source
Source
Station 3
Station 4
Sink
Homework Midterm
• Make ProdA in green (default), ProdB in red, and ProdC in blue
• Process Time and capacity bounds follows the following table
Unit(minute)
Station 1
Station 2
Station 3
Station 4
Process Time
Exponential(25)
Normal(20, 5)
Exponential(5)
Triangular(3,5,10) Uniform(1,5)
Capacity Lower
Bound
1
1
1
1
2
Capacity Upper
Bound
3
5
5
3
5
• Interarrival Time follows the following table
Unit(minute)
ProdA
ProdB
ProdC
Interarrival Time
Exponential(25)
Exponential(30)
Exponential(20)
Inspection
Homework Midterm
• Create an experiment of all combinations of capacity settings using
lower bounds and upper bounds
• Response set to entities’ average time in system
• (hint: Sink1.TimeInSystem.Average)
• Run 20 replications to each designs
• Try OptQuest to get the best design.
• Please screenshot the model, definition/properties, server properties
that you implemented definition/properties to, and experiment.
• Put all the screenshot and later comparison analysis into word and
convert to a pdf file.