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42) A company designing a product layout for a new

Question : 42) A company designing a product layout for a new : 2034586

42) A company is designing a product layout for a new product. It plans to use this production line eight hours a day in order to meet a schedule of 400 units per day. The tasks necessary to produce this product are detailed in the table below.

Task

Predecessor

Time (seconds)

A

-

50

B

A

36

C

-

26

D

-

22

E

B, D

70

F

C, E

30

a.Draw the network described in the table.

b.Without regard to a production schedule, what is the minimum possible cycle time (in seconds) for this situation; what is the maximum?

c.What is the required cycle time (in seconds) in order to meet the schedule?

d.What is the theoretical minimum number of workstations needed to meet the schedule?

e.Balance this line using longest processing time.

f.What is the efficiency of the balance obtained in part e?

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.

Task

Predecessor(s)

Duration (minutes)

A

--

1.4

B

--

0.8

C

A, B

0.4

D

--

1.8

E

--

0.4

F

C

2.1

G

E, F

2.0

H

D, G

1.2

a.Draw the precedence diagram.

b.Determine the desired cycle time.

c.Determine the theoretical minimum number of stations needed.

d.Balance this line using the most following tasks heuristic.

e.What is the efficiency of the line obtained in part d?

Solution
5 (1 Ratings )

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Supply Chain Management 2 Years Ago 123 Views
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