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Question
| Station | Task | Time (seconds) | Time left (seconds) | Ready tasks |
| A,C,D | ||||
| 1 | A | 22. | C,D,B | |
| D | 22. | 0. | C,B | |
| 2 | B | 36. | 36. | C,E |
| C | 26. | 10. | E | |
| 3 | E | 70. | 2. | F |
| 4 | F | 30. | 42. | |
| Summary Statistics | ||||
| Cycle time | 72 | seconds | ||
| Time allocated (cycle time * #) | 288 | seconds/cycle | ||
| Time needed (sum of task times) | 234 | seconds/unit | ||
| Idle time (allocated-needed) | 54 | seconds/cycle | ||
| Efficiency (needed/allocated) | 81.25% | |||
| Balance Delay (1-efficiency) | 18.75% | |||
| Min (theoretical) # of stations | 4 |
Key Term: Assembly-line balancing
43) You have been asked to balance a flow shop assembly operation to achieve an output rate of 80 units per eight-hour day. Task times and precedence relationships are shown in the table below.
Answer
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