EBK OM
6th Edition
ISBN: 9781305888210
Author: Collier
Publisher: YUZU
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Chapter 8, Problem 9PA
Summary Introduction
Interpretation:Assembly line needs to be balanced using longest task time method with the help of given precedence diagram.
Concept Introduction: Assembly line balancing is an important task that helps to reduce the cycle time by keeping the precedence relationships as it is.
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Sue Helms Appliances wants to establish an assembly line to manufacture its new product, the Micro Popcorn Popper. The goal is to produce
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Task
Performance Time (mins)
Task Must Follow Task Listed Below
A
8
−
B
11
A
C
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A, B
D
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B, C
E
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C
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D
In the diagram, there are 6 circles labeled using the letters from A to F. There are 8 of arrows, and each arrow connects one circle to another circle. The arrows are situated in the following manner: A to B, A to C, B to C, C to D, B to D, C to E, D to F, and E to F.
Part 2
a) The theoretical minimum number of
workstations=55
(round your response up to the…
The following assembly tasks (with performance time in minutes and task precedence) are to be configured into a balanced assembly line layout. There are 12 separate assembly elements (A-L) to complete
the product. Note: The target is to produce 6 units per hour (60 min). please select more than 5 workstations in this problem as per the guidelines of the lecture note.
Element (Min)
Preceded Bv
A
B
C
D
E
F
G
H
1
J
K
L
Time
2.5
4.5
3.5
4.0
3.2
2.0
2.7
7.0
6.0
3.8
5.0
4.3
A
A
A
B
B. C
D
D
ΤΑ
E
F, G
H
I. J. K
a) Construct the precedence diagram
b) Determine the total work content time.
c) Use the "Longest Task Time" rule to assign work elements to stations (also known as "Largest Candidate Method".
d) Calculate the efficiency of your solution.
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