As part of a major plant renovation project,
As part of a major plant renovation project, the industrial engineering
department has been asked to balance a revised assembly operation to achieve an output of 240 units per eight-hour day. Task times and precedence relationships are as follows:
Task Duration(minutes) Immediate Predecessor
a 0.2 –
b 0.4 a
c 0.2 b
d 0.4 –
e 1.2 d
f 1.2 c
g 1.0 e, f
Determine the minimum cycle time, the maximum cycle time, and the calculated cycle time.
The minimum cycle ? time minutes per unit
The maximum cycle time ? minutes per unit
Calculated cycle time ? minutes per unit
Determine the minimum number of stations needed
Minimum number of stations ?
Compute the percentage of idle time for the assignment in part d. Use the actual bottleneck cycle time in calculation.
Percentage of idle time ? %