operation management 1
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1. Balance the assembly line for the tasks contained in the table. The desired output is 240 units per day. Available production time per day is 480 minutes.
Work Element
|
Time (Sec.)
|
Immediate Predecessor(s)
|
A
|
40
|
—
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B
|
45
|
—
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C
|
55
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A
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D
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55
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B
|
E
|
65
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B
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F
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40
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C,D
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G
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25
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D,E
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a) What is the desired Cycle time in seconds?
b) What is the theoretical minimum number of stations?
c) Use trial and error to work out a solution in the table below. Your efficiency should be at least 90%.
Station
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Candidates
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Choice
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Work-Element
Time (Sec)
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Cumulative Time (Sec)
|
Idle Time
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d) Calculate the efficiency of your solution. (2 points)