Two different kinds of component, A and B, arrive into the system. The A-components arrive in batches of two, while the B-components arrive in batches of four. Both types of component are preprocessed on their respective stations, after which the components get sent to the process station, which is the same for both types. Each part is processed separately on the station; however, because part B has higher importance than part A, it is processed first. On the process station, the work fails in 8% of all the instances. The unsuccessful products get sent to the repairing station, where the processing-time follows the EXPO(10)-distribution, 90% of the unsuccessful products can be repaired on the repairing station. The unrepairable parts get scraped, while the successful products get stored. The distributions, which the arrival and processing times of the components follow, can be found in the table below (The time unit is in minutes). Assume that there is one resource (which is machine) in each process and machines are different from one process to another Note: the manager needs to know whether the system is working well or not knowing that he is seeking to have a queue of not more than 1 part before each process. om sin s station airing station Expo(10) Expo(20) Tria(1.4.7) Tria(4,5,8) Norm(2.5,1) Expo(10) 1. Build and run a complete simulation model using ARENA. Simulate the problem for: One replication. * Replication length: 2 days. One working shift (8 hours a day) 2. Find and comment on the number of parts scraped 3. Explain clearly if there is any relation between the utilization, the time, and the number of parts waiting. IS there any relation with other important performance measures? 4. If the system is not meeting the manager needs, do not forget to mention what is the main reason (in your opinion) and provide a reasonable justification of that. "Try to think about the root cause(s) of the problem". Two different kinds of component, A and B, arrive into the system. The A-components arrive in batches of two, while the B-components arrive in batches of four. Both types of component are preprocessed on their respective stations, after which the components get sent to the process station, which is the same for both types. Each part is processed separately on the station; however, because part B has higher importance than part A, it is processed first. On the process station, the work fails in 8% of all the instances. The unsuccessful products get sent to the repairing station, where the processing-time follows the EXPO(10)-distribution, 90% of the unsuccessful products can be repaired on the repairing station. The unrepairable parts get scraped, while the successful products get stored. The distributions, which the arrival and processing times of the components follow, can be found in the table below (The time unit is in minutes). Assume that there is one resource (which is machine) in each process and machines are different from one process to another Note: the manager needs to know whether the system is working well or not knowing that he is seeking to have a queue of not more than 1 part before each process. om sin s station airing station Expo(10) Expo(20) Tria(1.4.7) Tria(4,5,8) Norm(2.5,1) Expo(10) 1. Build and run a complete simulation model using ARENA. Simulate the problem for: One replication. * Replication length: 2 days. One working shift (8 hours a day) 2. Find and comment on the number of parts scraped 3. Explain clearly if there is any relation between the utilization, the time, and the number of parts waiting. IS there any relation with other important performance measures? 4. If the system is not meeting the manager needs, do not forget to mention what is the main reason (in your opinion) and provide a reasonable justification of that. "Try to think about the root cause(s) of the
