Dr. Labib Presentation
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Manufacturing System Preventive Maintenance, an Engineering Complexity Approach Enterprise Strategic objectives Enterprise level
Quality
Machine Failure Nature Machine Failure Frequency
Machine Repair Time
Cost
Productivity
Machine Contribution in product Quality & Productivity Machine Position in Layout
Machine Level
… … … ….
Machine Maintenance Policy Failure Repair level
Minimal --------------------------Perfect
Preventive Maintenance Periodicity
0 -------------------------------------------------∞
Preventive maintenance Level
Minimal---------------------------------Perfect
Design Range
System Distribution Range
Acr >α
The Functional Failure Acr >α
The Physical Failure Acr ≤α
Complication Rate: the rate of change of the certainty of satisfying the functional requirements Forms of Complication Rate 10 8
0.6
6
0.4
4
0.2
2
0
Complexity
certainity
1 0.8
Certainity Complexity
0 time
Constant
Complication rate
Decreasing
Increasing
Failure rate
Quality
Machine Failure Nature Machine Failure Frequency
Machine Repair Time
Cost
Productivity
Machine Contribution in product Quality & Productivity Machine Position in Layout
Machine Level
… … … ….
Machine Maintenance Policy Failure Repair level
Minimal --------------------------Perfect
Preventive Maintenance Periodicity
0 -------------------------------------------------∞
Preventive maintenance Level
Minimal---------------------------------Perfect
Design Range
System Distribution Range
Acr >α
The Functional Failure Acr >α
The Physical Failure Acr ≤α
Complication Rate: the rate of change of the certainty of satisfying the functional requirements Forms of Complication Rate 10 8
0.6
6
0.4
4
0.2
2
0
Complexity
certainity
1 0.8
Certainity Complexity
0 time
Constant
Complication rate
Decreasing
Increasing
Failure rate
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