8ME4.1-RELIABILITY AND MAINTENANCE ENGINEERING |
Units: I |
Introduction: Maintenance Objectives and Functions; Maintenance Organisation and
Administration of Maintenance Systems. Need of planned maintenance. Maintenance
policies; Breakdown, time based maintenance: Block replacement, age replacement and
periodic replacement policy. Corrective and preventive maintenance. Maintenance planning,
Scheduled maintenance. Cost of maintenance versus Cost of equipment and production
delays. Inspection: Inspection intervals, Inspection reports, card history system.
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Units: II |
Predictive maintenance. Equipment wear records, standards. Equipment used in predictive
maintenance. Computerized maintenance, Total Productive Maintenance. Methods of
condition monitoring, Non-destructive testing, Liquid Penetrate, Magnetic particles,
Ultrasonic testing, and Vibration analysis. Oil analysis, Radiographic testing. |
Units: III |
Reliability: Definition, failure data analysis, Mean failure rate, mean time to failure (MTTF),
mean time between failures (MTBF) , hazard rate, Bathtub curve. Use of Weibull probability
chart foe assessing characteristics life, guarantee period etc.
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Units: IV |
System reliability: Series, parallel and mixed configuration; Simple problems. Reliability
improvement: Techniques, use of Pareto analysis-Design for reliability, redundancy unit and
stand by redundancy, Optimization of reliability.
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Units: V |
Spare Parts Management: Spare parts, features and categorization of spares, cost
considerations, Techniques of cost reduction; Selective controls used in spare parts control;
ABC analysis, FSN, XYZ, VED and other approaches. Inventory control of spares.
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