Final Paper – Assignment / Psychotherapy In Film
June 26, 2020
Chapter 6&7 Problems
June 26, 2020

(1)

(a)

4000 shoes are to be produced in 16 hours. So,

Takt time = 16 x 60 x 60 / 4000 = 14.4 sec

(b)

Theoritical total number of wrokstations = Total flowtime / takt time

Total flowtime = 12+14+7+5+3+2+1+8+13+4+10 = 79 sec

So, theoritical minimum number of workstations = 79 / 14.4 = 5.49 (or, 6)

(c)

Station tasks Time (seconds) Time left (seconds) Ready tasks Station Station
A,F cycle time idle time
1 A 12 2.4 F,B,C 14 0.4
F 2 0.4 B,C,G
2 B 14 0.4 C,G 14 0.4
3 C 7 7.4 G,D 13 1.4
D 5 2.4 G,E
G 1 1.4 E
4 E 3 11.4 H 11 3.4
H 8 3.4 I
5 I 13 1.4 J 13 1.4
6 J 4 10.4 K 14 0.4
K 10 0.4
Totals 79 7.4
(d)

Efficiency delay = Total idle time / (No. of stations x overall cycle time) = 7.4 / (6 x 14.4) = 8.56%

 

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