DEO11 B Tomos 7.Diaxeirisi Apothematon
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Transcript of DEO11 B Tomos 7.Diaxeirisi Apothematon
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7:
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=
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() , , .
C=(D/Q)C2+(Q/2)C1 =Q/D () Qo=SQRT[2DC2/(IC1)] =DtL
: = , Q= , C1= , C2= , = C1, tL=
Q
tL
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1
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. AQ = 400
(D) = 1000
A = 200
B = 50
0.1 0.4
100
400
. BQ = 100
(Q)
(Q)
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400
350
300
250
200
150
100
50
40035030025020015010050
()
171
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Time
Q
QP
M
= P D = D
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, , Q . Q , tp, .
C=(D/Q)C2+[Q(1-z/p)/2]C1 tP=Q/p Qo=SQRT{2ZC2/[IC1(1-z/p)]} =ZtL
p= , z=
tP tL
191
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. C3 . , , .
201
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400
300
200
100
00 1 2 3 4 5 6 7 8
Time
(D) = 100
( )
( )
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Q
t1 t2
d1d2
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, .
/
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Qm
T0 T1 T2 T3 t1 t2 t3
tf tf tf
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Q ( ) .
C=((Z)/Q)C2+(+Q/2)C1 =kzSQRT(tL) Qo=SQRT[2(Z)C2/(IC1)] =B+(Z)tL
: (Z)= , z= ,k= ( )
tLtL tL
Q
Q QQ
251
1
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. , M.
C=(1/T)C2+(+(Z)T/2)C1 =kzSQRT(T+tL) o=SQRT[2C2/(()IC1)] =B+(Z)(+tL)
Qi-1tL
Qi+1
T
Qi+2M
tT
QiQi
tLtLQi+1
Qi+2
261
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10090
8070
6050
4030
2010
100908070605040302010
C
Pareto
ABC ABC
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20% 80%
30% 10%
C 50% 10%
ABC ABC
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301
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ACE TYRES
..
,
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(pull) (push)
(pull) (push)
321
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(pull) (push)
(pull) (push)
331
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, , MRP.
MRP 60-70 .
MRP (, ) .
()
Materials Requirements Planning (MRP)
()
Materials Requirements Planning (MRP)
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() ()
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2.
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MRP
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: () ( ) .
()
Materials Requirements Planning (MRP)
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Materials Requirements Planning (MRP)
361
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10077
10089
10023
10045
10045
10062
1003310056
23988
10062
20427
00289
2
1
0
- -
371
1
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3 (00289)
20 (10089)
10 (10089)
50 (20467), 50 (23988), 50 (10062)
15 , 4 , 65
1
0 0 20 (00289)
1 50 10089)
2 40 (20467) 60 (23988)
10 (00289)
2 = ()
381
1
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Planning Resource Enterprise ERP
ERP ERP
391
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(Planning) ,
(Execution) & , , , ,
, (Analysis)
ERP ERP
401
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( ,
c-commerce)
(, ERP)
(, MRPII)
(, MRP)
MRP e-commerce MRP e-commerce
411
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JIT
A
B
A B
JIT JIT
421
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JIT , :
, , , JIT JIT
JIT
Source: Empics
JIT JIT JIT JIT
431
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JIT TOYOTA
T JIT pull, .
1
2
1
2
1
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KANBAN KANBAN
441
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JIT JIT
451
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., , : , , , 1999.
, .., : , , , 2004.
, .. , .., : , , , 2007.
Slack, N., Chambers, S. Johnston R., (5 ), , , 2010.
Vollman, T.E., Berry, W.L., and Whybark, D.C., Manufacturing Planning and Control Systems (4th Edition), Irwin McGraw-Hill, Boston, 1997.
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