Comparative Analysis of Production Systems: Simulation Project (Arena)

This assignment presents a comprehensive analysis of various production systems, including push, pull, and CONWIP models, using Arena simulation software. The project requires students to simulate production lines, similar to Penny Fab 1, with four single-machine workstations, applying uniform processing times. The simulation is run for 250 hours with 10 replications, and the systems are compared based on throughput (TH), average cycle time (CT), and average work in progress (WIP). The assignment involves varying the WIP cap for pull and CONWIP systems from w=4 to w=10 to determine the optimal cap and evaluate the efficiency of each production system. Furthermore, the project explores the impact of 80% availability (with 5 hours repair time) for workstations 1 and 4, and then increases the arrival rate by 25% to observe the performance changes. The final submission includes the simulation files and detailed results, focusing on understanding and optimizing production line efficiency under different conditions.

Category Overview03:24:09PM February 27, 2020
Unnamed Project
Time Units:Replications: 1 Hours
Key Performance Indicators
AverageSystem
Number Out 353
Model Filename: Page of1 5D:\Sourav\2-25\1201054\factory process

Category Overview03:24:09PM February 27, 2020
Unnamed Project
Time Units:Replications: 1 Hours
Entity
Time
VA Time Half WidthAverage Minimum
Value
Maximum
Value
0.3820Entity 1 0.2917 0.46260.003322553
NVA Time Half WidthAverage Minimum
Value
Maximum
Value
0.00Entity 1 0.00 0.000.000000000
Wait Time Half WidthAverage Minimum
Value
Maximum
Value
0.4944Entity 1 0.00 1.2111(Correlated)
Transfer Time Half WidthAverage Minimum
Value
Maximum
Value
0.00Entity 1 0.00 0.000.000000000
Other Time Half WidthAverage Minimum
Value
Maximum
Value
0.00Entity 1 0.00 0.000.000000000
Total Time Half WidthAverage Minimum
Value
Maximum
Value
0.8765Entity 1 0.3110 1.5910(Correlated)
Other
Number In Value
Entity 1 356.00
Number Out Value
Entity 1 353.00
WIP Half WidthAverage Minimum
Value
Maximum
Value
6.4673Entity 1 0.00 13.0000(Correlated)
Model Filename: Page of2 5D:\Sourav\2-25\1201054\factory process

Category Overview03:24:09PM February 27, 2020
Unnamed Project
Time Units:Replications: 1 Hours
Queue
Time
Waiting Time Half WidthAverage Minimum
Value
Maximum
Value
0.3778Fixture mounting.Queue 0.00 1.1138(Correlated)
0.01973147Workstation 1.Queue 0.00 0.2726(Correlated)
0.07844251Workstation 2.Queue 0.00 0.2183(Correlated)
0.01538441Workstation 3.Queue 0.00 0.13180.005810338
Other
Number Waiting Half WidthAverage Minimum
Value
Maximum
Value
2.8023Fixture mounting.Queue 0.00 9.0000(Correlated)
0.1463Workstation 1.Queue 0.00 3.00000.052646066
0.5807Workstation 2.Queue 0.00 2.00000.129375392
0.1135Workstation 3.Queue 0.00 2.0000(Correlated)
Model Filename: Page of3 5D:\Sourav\2-25\1201054\factory process

Category Overview03:24:09PM February 27, 2020
Unnamed Project
Time Units:Replications: 1 Hours
Resource
Usage
Instantaneous Utilization Half WidthAverage Minimum
Value
Maximum
Value
0.9163Fixture 0.00 1.0000(Insufficient)
0.8099Workstation1 resources 0.00 1.00000.039293677
0.9269Workstation2 resources 0.00 1.0000(Insufficient)
0.8405Workstation3 resources 0.00 1.00000.043570577
Number Busy Half WidthAverage Minimum
Value
Maximum
Value
3.6650Fixture 0.00 4.0000(Insufficient)
0.8099Workstation1 resources 0.00 1.00000.039293677
0.9269Workstation2 resources 0.00 1.0000(Insufficient)
0.8405Workstation3 resources 0.00 1.00000.043570577
Number Scheduled Half WidthAverage Minimum
Value
Maximum
Value
4.0000Fixture 4.0000 4.0000(Insufficient)
1.0000Workstation1 resources 1.0000 1.0000(Insufficient)
1.0000Workstation2 resources 1.0000 1.0000(Insufficient)
1.0000Workstation3 resources 1.0000 1.0000(Insufficient)
Scheduled Utilization Value
Fixture 0.9163
Workstation1 resources 0.8099
Workstation2 resources 0.9269
Workstation3 resources 0.8405
0.800
0.820
0.840
0.860
0.880
0.900
0.920
0.940
Fixture
Workstation1 resources
Workstation2 resources
Workstation3 resources
Model Filename: Page of4 5D:\Sourav\2-25\1201054\factory process

Category Overview03:24:09PM February 27, 2020
Unnamed Project
Time Units:Replications: 1 Hours
Resource
Usage
Total Number Seized Value
Fixture 356.00
Workstation1 resources 356.00
Workstation2 resources 355.00
Workstation3 resources 354.00
354.000
354.400
354.800
355.200
355.600
356.000
356.400
Fixture
Workstation1 resources
Workstation2 resources
Workstation3 resources
Model Filename: Page of5 5D:\Sourav\2-25\1201054\factory process