Final Project- Arena Case Studies
Guide line
Each Group has been given a particular case study problem and a set of related data.
The group can work together to form the "base" simulation model.
Each person in the group is to then analyze one aspect of the question as was assigned in class.
The group should submit:
A team report in word (.doc) that includes:
1) A cover page with brief title -i.e. Airline Ticket Counter Study and all team member names.
2) A general description of the problem and data used.
3) Each team member should write a section of the report labeled with their name and the particular question being answered. Include a screen capture of the ARENA model, and a summary of the obtained results in the report.
Things to turn in:
1) The report- in word .doc file, include screen captures from Arena in the report just in case I cannot open them from below.
2) Each of the Arena models ( 1 file for each case/ run) used in the study so I can open and run them.
Question 1: A proposed production system consists of five serial automatic workstations. The processing times at each workstation are constant: 11, 10, 11, 11, and 12 (all times given in this exercise are in minutes). The part interarrivaI times are UNIP(13.0, 15.1). There is an unlimited buffer in front of all workstations, and we will assume that all transfer times are negligible or zero. The unique aspect of this system is that at workstations 2 through 5 there is a chance that the part will need to be reprocessed by the workstation that precedes it. For example, after completion at workstation 2, the part can be sent back to the queue in front of workstation 1. The probability of revisiting a workstation is independent in that the same part could be sent back many times with no change in the probability. At present, it is estimated that this probability, the same for all four work-stations, will be between 5% and 10%. Develop the simulation model and make six runs of 10,000 minutes each for probabilities of 5%, 6%, 7%, 8%, 9%, and 10%.
Using the results, construct a table (put this table inside your .doe file using an Arena Text box) of the average cycle time (system time) against the probability of a revisit. Also include the maximum cycle time for each run in your table.
Question 2: Modify your solution for Question 1 to include transfer times between part arrival and the first workstation, between workstations (both going forward and for reprocessing), and between the last workstation and the system exit. Assume all part transfer times are UNIF(2,5) minutes. Animate your model to show entity movement and run for 10,000 minutes using a reprocess probability of 8% only. Put in a text box with the average and maximum cycle time.
Please follow the guide line to solve the both problems.
Attachment:- Assignment.rar