Simulation Problems Jason R. W. Merrick

Problem 1 Implement Exercise 3.1 Use an attribute that specifies which plating processes is to be performed first: front or rear. Use Decide modules to route the entities through the system

Problem 2 a) Open Model 03-01.doe in the Arena Book directory Add a second machine to which all parts go immediately after exiting the first machine Processing times are the same as the first machine Examine the effect on the results for 1 week of simulation

Problem 2 b) After the second machine there is a pass/fail inspection The inspection take 5 minutes every time There is an 80% chance of passing Failed entities must go back through the second machine and be re-inspected Entities may pass through the process-inspection route as many times as needed. Examine the effect on the results for 1 week of simulation

Problem 2 c) Entities can now either pass, fail or be sent for re-work Assume a 80% passing rate, 9% failure rate and a 11% re-work rate Failed items must exit the system and be counted Examine the effect on the results for 1 week of simulation

Problem 2 d) Entities cannot be re-worked more than once Ensure that entities that have gone through re-work can either pass (80%) or fail (20%) Examine the effect on the results for 1 week of simulation