Preamble: Nico Case is an industrial engineer working in Vancouver, BC. Ms. Case is responsible for the...

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Mechanical Engineering

Preamble:

Nico Case is an industrial engineer working in Vancouver, BC.Ms. Case is responsible for the design and development of a newwarehousing operation for a national manufacturer of yoga clothing.Nico has several design alternatives available, each with differingtypes of equipment, production strategy, cost, and potentialthroughput. Accordingly, Ms. Case has decided to build a simulationmodel to guide her analysis. The following questions relate to thisstudy.  

Q 1a18. Ms. Case is interested in setting the warm up period forher model. She has run a pilot run of her simulation and outputhourly throughput for her system. She receives the followingdata:

Time

Rep 1

Rep 2

Rep 3

1

3

5

4

2

49

40

37

3

20

19

19

4

22

24

24

5

24

20

20

6

22

25

25

      7                  

    25       

    20       

    22      

      8                  

    25      

    21      

   24       

     9                   

     21     

    20       

   24       

      10                  

     21     

    24       

   25        

a) Define what is meant by \"transient\" as opposed to“steady-state\" for a simulation model.

b) Why is it important to identify a warm up period for asimulation model?

c) Using Welch's technique and a moving window with w = 1,estimate the warm up period for this model.

                                                               

Answer & Explanation Solved by verified expert
4.4 Ratings (1052 Votes)
a The difference between a steady state simulation and marching a transient solution to steady state is that the SS simulation ignores many of the cross terms and higher order terms dealing with time These terms all go to zero in steady state so they dont affect the steady state result The transient simulation includes all these terms Usually this means the steady state model has an easier convergence as there are less terms to    See Answer
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