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Lecturer(s)
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Pelantová Věra, Ing. Ph.D.
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Kamenický Jan, Ing. Ph.D.
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Course content
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Lectures 1. Dependability management system I - basic terms and definitions of dependability, dependability related standards and its usage in the dependability program creation. 2. Dependability management system II - tasks of dependability program, dependability per whole life cycle. 3. Dependability principles I - reliability, availability, maintenance and maintainability measures and characteristics. 4. Dependability principles II - basic types of systems structures and its dependability. 5. Dependability principles III - mathematical formulas of dependability measures. 6. Dependability principles IV - list of dependability methods and their basic characteristics. 7. Dependability principles V - Reliability Block Diagram, evaluation of system`s dependability measures. 8. Dependability principles VI - Failure Mode and Effect Analysis (FMEA) and Failure Mode, Effect and Criticality Analysis (FMECA) - the most frequently used method in automotive. 9. Dependability principles VII - Fault Tree Analysis (FTA) and Event Tree Analysis (ETA) - analysis for highly redundant systems. 10. Dependability principles VIII - Markov Analysis. 11. Human Reliability Analysis - HRA, TESEO and probability tree. 12. Maintenance and its affect to dependability - maintenance tasks division, economically optimized maintenance plan. 13. Economical aspects of dependability - Cost Benefit Analysis (CBA) and Life Cycel Costing (LCC). 14. Functional safety and SW tools for dependability calculations. Practices 1. Dependability definition development, dependability terms division. 2. Life Cycle Periods. 3. Evaluation of dependability parameters regarding the type of random variable distribution. 4. Evaluation of reliability and availability parameters for different types of redundancy. 5. Random variable (type, basic distributions), failure rate in different life cycle periods, repairable/nonrepairable products. 6. Proper analysis method choosing, first evaluation of dependability parameters of the system by the Parts Counting method. 7. Modelling of the system using the Reliability Block Diagram, calculation of the reliability and availability parameters in RBD. 8. Application of FMEA and FMECA. 9. Application of FTA and ETA. 10. Application of Markov Analysis. 11. Trial of Human Reliability Analysis with the student volunteers. 12. Optimal maintenance plan compilation. 13. CBA of planned change in the factory, LCC of chosen product. 14. Examples of functional safety calculations using the dependability methods.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing)
- Class attendance
- 56 hours per semester
- Preparation for exam
- 20 hours per semester
- Home preparation for classes
- 44 hours per semester
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Learning outcomes
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The main aim of the subject is to inform students compactly about the dependability management. In the first part of the semester there will be introduced standards ČSN IEC 60300-X and corresponding requirements to dependability of technical systems. Further there will be lectured basic dependability measures and the most commonly used techniques of dependability analysis, e.g. Failure Mode, Effect and Criticality Analysis (FMECA), Fault Tree Analysis (FTA), Markov Analysis or Reliability Block Diagram (RBD). The last part of the subject attends to maintenance planning and economical aspects of maintenance. The basic methods as Cost Benefit Analysis (CBA), Reliability Centred Maintenance (RCM) and Life Cycle Costs (LCC) will be introduced.
Student will acquire the basic overview about commonly used dependability parameters of technical systems, about the methods used to its evaluation and about possibilities of using these parameters e.g. for the maintenance planning.
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Prerequisites
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Unspecified
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Assessment methods and criteria
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Combined examination
The essential condition for successfully completing the subject is activity on the practice lectures and passing of the credit test. The exam is both written and oral.
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Recommended literature
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E-learning.
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Fuchs, Pavel :. Využití spolehlivosti v provozní praxi. Liberec, 2002.
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Holub, Rudolf a Zdeněk Vintr:. Spolehlivost letadlové techniky [online]. VUT Brno, 2001.
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MYKISKA, A.:. Spolehlivost v systémech jakosti. (Skripta). Vydavatelství ČVUT.. Praha, 1996.
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