This page has been automatically translate with Google from the Italian language.

Chapter 7 - a model developed in a company of the production field and maintenance radar.

7.1.6 Modification in order to hold account of the uncertainty.

To this point, regarding newly it turns out obtained from the shape base to you of the model brought back in Par. 7.1.4, Notes that for some LRU the relationship between the resolution costs is next to 100%, that it means that the two costs nearly are equivalent.
From the budgettario point of view, obviously, being these costs it calculates to you on presumed dates of obsolescence, is surer, when the two costs are next, to prefer the solution redesign to that one of Last Buy, in how much, to forehead of a worsening of the previewed costs, us protection from unexpected rincari in the prices of the members, that they would make however to leaven the costs of resolution in unexpected way.
Naturally, also this type of chosen must be weighted estimating the worsening of the costs regarding the optimal solution.
The sunto of the resolutive actions it comes shown in the tables successive; obviously, siccome for members FR=6 and FR=5 heterogeneity between Last Buy is only had and Redesign, comes brought back only these cases.

LRU with members characterizes to you from FR=6.

Nome LRU

Critical types

Population

Critics

Fabbisogno19

Action

CostoLB/CostoRD

LRU 50

4

95

1

LB

2,20%

LRU 24

3

4

1

LB

1,52%

LRU 19

7

13

1

LB

9,33%

LRU 25

2

3

1

LB

0,66%

LRU 26

4

8

1

LB

12,14%

LRU 49

9

54

1

LB

32,95%

LRU 29

2

4

1

LB

1,31%

LRU 20

3

10

5

LB

1,74%

LRU 41

3

6

1

LB

1,55%

LRU 52

3

8

1

LB

2,63%

LRU 33

9

30

1

LB

2,19%

LRU 51

4

8

1

LB

2,23%

LRU 18

4

37

1

LB

39,18%

LRU 45

2

11

1

LB

1,12%

LRU 3

2

3

41

LB

0,81%

LRU 8

1

4

1

LB

0,05%

LRU 40

3

4

1

LB

0,48%

LRU 7

2

3

5

LB

9,57%

LRU 23

3

18

1

LB

21,75%

LRU 5

3

6

3

LB

11,82%

LRU 35

1

1

1

LB

0,01%

LRU 30

2

5

1

LB

1,25%

LRU 53

2

3

1

LB

2,98%

LRU 37

6

44

17

RD

107,65%

LRU 38

6

29

30

RD

82,91%

LRU 36

6

28

1

RD

90,41%

LRU 31

6

31

1

LB

2,79%

LRU 32

6

28

1

LB

1,10%

LRU with members characterizes to you from FR=5.

Nome LRU

Critical types

Population

Critics

Fabbisogno19

Action

LB/RD

LRU 2

1

4

3

LB

0,01%

LRU 50

6

22

1

LB

0,45%

LRU 24

2

2

1

LB

0,80%

LRU 19

3

3

1

LB

0,11%

LRU 26

2

2

1

LB

0,01%

LRU 49

5

9

1

LB

0,09%

LRU 29

3

3

1

LB

0,07%

LRU 20

11

32

4

LB

10,84%

LRU 41

5

7

1

LB

0,04%

LRU 52

6

14

1

LB

1,19%

LRU 33

8

19

1

LB

1,05%

LRU 54

2

3

1

LB

0,28%

LRU 51

6

9

1

LB

2,77%

LRU 18

9

47

1

LB

0,06%

LRU 3

14

23

39

LB

4,17%

LRU 6

8

17

3

LB

9,09%

LRU 8

4

13

1

LB

4,05%

LRU 40

14

31

1

LB

0,59%

LRU 4

2

6

27

LB

1,59%

LRU 7

2

2

5

LB

0,81%

LRU 23

8

25

1

LB

0,04%

LRU 5

3

6

3

LB

0,15%

LRU 35

2

2

1

LB

0,07%

LRU 30

4

4

1

LB

1,54%

LRU 53

10

30

1

LB

4,69%

LRU 37

13

26

16

RD

147,14%

LRU 38

10

21

29

RD

165,79%

LRU 36

1

6

1

LB

0,02%

LRU 31

4

11

1

LB

0,96%

LRU 32

6

25

1

LB

5,71%

Table 7.3: Resolutive actions for the modification in order to hold account of the uncertainty.

The relative cash flows you to the case base, considering this type of actions are brought back in the histogram following (for the values send back to the Appendix B pag. 159).


Figure 7.11: Cash flows case base modification in order to hold account of the uncertainty.

Also in this case it has been considered the possibility to delay the dates of redesign, estimating how much this influences on the costs.
The course of the worsening is brought back of continuation.


Figure 7.12: Economic worsening regarding the optimal solution.

This time the better result is obtained in the event sending back the redesign of three years FR=6 and two years in the event FR=5.
The worsening percentage regarding the optimal solution and of 3.44%.
The relative cash flows you to such result are following (for the values send back to the Appendix B pag. 159).


Figure 7.13: Cash flows optimal case modification in order to hold account of the uncertainty.

 

Top | Summary | < < Previous | Next > >
/en/home.php" TARGET="_blank">>> Home Page <<