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Line Balancing Problem - PowerPoint PPT Presentation


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Line Balancing Problem. 3.4 mins. B. E 2.7 mins. 2.2 mins. A. C 4.1mins. D 1.7mins. F 3.3 mins. G 2.6 mins. Questions?. 4.1 minutes. 1. What is the bottleneck? 2. What is maximum production per hour? 60/4.1=14.63 units 3. What is efficiency and balance delay?

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Presentation Transcript
slide1

Line Balancing Problem

3.4 mins

B

E

2.7 mins

2.2 mins

A

C

4.1mins

D

1.7mins

F

3.3 mins

G

2.6 mins

slide2

Questions?

4.1 minutes

  • 1. What is the bottleneck?
  • 2. What is maximum production per hour? 60/4.1=14.63 units
  • 3. What is efficiency and balance delay?
  • 4. How to minimize work stations?
  • 5. How should they be grouped?
  • 6. New efficiency?
slide3

Calculate efficiency

  • A. 73.2%
  • B. 56.7%
  • C. 69.7%
  • D. 79.6%
  • E. 81.2%

3.4 mins

B

E

2.7 mins

2.2 mins

A

C

4.1mins

D

1.7mins

F

3.3 mins

G

2.6 mins

slide4

(2.2+3.4+4.1+2.7+1.7+3.3+2.6)

4.1x7

20

28.7

69.7%

1-69.7%=30.3% Balance Delay

slide5

Number of Work Stations

(bottleneck)

20

4.1

= 4.88 work stations

slide6

4 Stations

20/24=83.3%

Line Balancing Solution

Max prod./hour

60/6

10 units/hour

(5.6)

3.4

Station 3

B

Station 1

E

2.7

2.2

A

C

4.1

(6.0)

Station 2

Station 4

(5.8)

D

1.7

F

3.3

G

2.6

All under 6 minutes?

slide7

5 Stations

Line Balancing Problem

3.4 mins

20/5.6x5 = 20/28 = 71.4%

5.6

B

E

2.7 mins

2.2 mins

A

C

4.1mins

Max Prod./hour

60/5.6

10.7 units/hour

D

1.7mins

F

3.3 mins

G

2.6 mins

5.0

slide8

What is the minimum # of work stations?

Round down.

40 secs

59 secs

34 secs

84 secs

  • 3
  • 2
  • 4
  • 5
  • 6

56 secs

45 secs

slide9

40+59+84+56+34+45 = 318

318/84 = 3.78 or 3 work stations

What is the efficiency with 6 operators?

318/6 x 84=

318/504 =

63%

slide10

99 secs

3 Stations ?

40 secs

118 secs

59 secs

34 secs

84 secs

318/3x118

318/354 = 89.8%

56 secs

45 secs

101 secs

slide11

99 secs

4 Stations?

40 secs

84 secs

79 secs

59 secs

34 secs

84 secs

56 secs

318/4 x 99 =

318/396 = 80.3%

45 secs

56 secs