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Learning Simio Lab Series Lab Module 03 Serial Manufacturing Line – Part II Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved1.

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Presentation on theme: "Learning Simio Lab Series Lab Module 03 Serial Manufacturing Line – Part II Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved1."— Presentation transcript:

1 Learning Simio Lab Series Lab Module 03 Serial Manufacturing Line – Part II Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved1

2 Objectives and Outline Lab Objectives –Continue learning basic Simio modeling –Learn the event mode for the Source object –Learn about buffer capacities for the Server Object –Learn about reference properties –Learn the basics of dynamic pie charts and status plots Lab Outline –Video 1 – Describe the system and develop the initial Simio model. –Video 2 – Add buffer capacities, introduce and use reference properties. –Video 3 – Described Resource States and added pie charts and status plots. –Video 4 – Assignments. Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved 2

3 Video 1 – System Description and Initial Model 3 Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved M1M2 M3 M4 Capacity Analysis Parts are continuously available (infinite supply) and there is infinite demand (i.e., we can sell all that we can make) Processing times at each station are exponential with mean of 1 minute. The buffers between stations are finite and we’re interested in determining the impact of buffer size on system capacity.

4 Video 2 – Capacitated Buffers and Reference Properties 4 Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved M1M2 M3 M4 Capacity Analysis Parts are continuously available (infinite supply) and there is infinite demand (i.e., we can sell all that we can make) Processing times at each station are exponential with mean of 1 minute. The buffers between stations are finite and we’re interested in determining the impact of buffer size on system capacity.

5 Reference Properties Using a reference to a model property to specify the value for an object property. 5 Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved

6 Video 3 – ResourceStates, Pie Charts, Status Plots 6 Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved M1M2 M3 M4 Capacity Analysis Parts are continuously available (infinite supply) and there is infinite demand (i.e., we can sell all that we can make) Processing times at each station are exponential with mean of 1 minute. The buffers between stations are finite and we’re interested in determining the impact of buffer size on system capacity.

7 Video 3 – ResourceStates, Pie Charts, Status Plots 7 Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved

8 Video 4 - Assignments 1.Create experiment responses for the average numbers of parts in the buffers between M1 and M2, M2 and M3, and M3 and M4. 2.Create a status plot showing the average numbers of parts in the same buffers. 3.For the following three configurations, assume that you have 20 total buffer slots to distribute between the three buffers (i.e., (7, 3, 10) has a capacity 7 buffer between M1 and M2, a capacity 3 buffer between M2 and M3, and a capacity 10 buffer between M3 and M4). Find the buffer allocation that maximizes throughput of the line. 8 Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved Processing Time Distribution M1M2M3M4 AExponential(1)Exponential(1.1)Exponential(1.2)Exponential(1.1) BTriangular(.5, 1, 1.5) CUniform(1, 2)Uniform(.5, 2.5)Exponential(1.5)Uniform(1, 2)

9 Video 4 - Assignments 4.Supposed that there is a 5% probably of fallout at each machine. In other words, 5% of parts processed at each machine are bad and exit the system without proceeding to the “next” machine in the system. Modify your model to reflect this change. 5.Determine whether the optimal buffer configurations from question 3 change as a result of the part fallout. Note that you should justify your choice of –Replication length; –Warmup period length; and –Number of replications for questions 3 and 5 9 Copyright © 2013 - Jeffrey S. Smith and Simio LLC | All Rights Reserved


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