# Supplychainquestions

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User Generated
Subject
Supply Chain
School
ashford university
Type
Homework
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Packaging Value Chain
LEAN OPERATION MANAGEMENT
_____________________________________________________________________________________________________________________
___
Assignment 4:
Question 1:
A manual assembly line has 15 workstations with one operator per station, work content time to
assemble the product = 22 minutes. The bottleneck station has a cycle time of 1.6143 min.
Determine the balance ratio
For the Balance Ratio : [ TWC / NWorkstations*TCycle ] = Balance Ratio
Giving: Balance Ratio = 22/(15*1.6143) = 0.9085
Question 2:
Watch the following video and in a table format, determine the different SMED activities
involved.
The tire changing of the Nascar Pit crew is an impressive example of SMED implementation,
combining the agile benefits of having simultaneous and well ordered steps with an inexistent
need of external activities resulting into a 5.24 seconds process to change 4 tires. The activities
can be summarized as follow by type :
Number of activity :
Activity description :
Internal / External :
1
Mechanics team get in
position 2 Tire Carriers &
Changers for each right tire.
External
2
Car stops
Internal
3
One of the carriers slides a
hydraulic Jack to lift the
right part of the car (the
furthest from the ranch).
Internal
4
2 tire changers on the same
Internal

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time for the rear and the
front, on one side,
simultaneously loosen the
lug nuts.
5
Tire change & re-tightening
of the lug nuts.
Internal
6
Slide hydraulic jack on left
part & lift.
Internal
7
Tire changers loosen the lug
nuts again, while the carrier
gives out the new tire.
Internal
8.
Tightning new lug nuts and
Internal
Question 3:
In the following figures, explain what are the different Poka Yoke mechanisms involved (there
are 8 cases).

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Packaging Value Chain LEAN OPERATION MANAGEMENT _____________________________________________________________________________________________________________________ ___ Assignment 4: Question 1: A manual assembly line has 15 workstations with one operator per station, work content time to assemble the product = 22 minutes. The bottleneck station has a cycle time of 1.6143 min. Determine the balance ratio Answer: • For the Balance Ratio : [ TWC / NWorkstations*TCycle ] = Balance Ratio Giving: Balance Ratio = 22/(15*1.6143) = 0.9085 Question 2: Watch the following video and in a table format, determine the different SMED activities involved. https://www.youtube.com/watch?v=A_ZCUnCD4hk The tire changing of the Nascar Pit crew is an impressive example of SMED implementation, combining the agile benefits of having simultaneous and well ordered steps with an inexistent need of external activities resulting into a 5.24 seconds process to change 4 tires. The activities can be summarized as follow by type : Number of activity : Activity description : Internal / External : 1 Mechanics team get in position – 2 Tire Carriers & Changers for each right tire. External 2 Car stop ...
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Anonymous
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