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Diagnostic of System Reliability
Bábek, Tomáš ; Pohl, Jan (referee) ; Havlíková, Marie (advisor)
This thesis is oriented to the reliability theory and diagnostics. It involves brief explanation of terms that exists in a branches of technical devices reliability. The next part contains determining the reliability indexes, calculations of probabilities and statistics for electronic devices. I do mention the different methods of reliability diagnostics. The three most used of them are described. First of them is the reliability block model. By this I describe the serial reliability model, the parallel reliability model and the combination of them. Using this method is the simple way to show how each component affects reliability of the whole system. The second method is FMEA (Failure Mode and Effects Analysis) which is used mostly in the begining of the system designing. The third method is FTA (Fault tree analysis) which is one of the classic deductive methods. The FTA method is a graphical reliability model of a given system. By the end of this thesis, process of calculating the failure probability and the other reliability indexes of a given komponent (preamplifier with operational amplifier) is shown.
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Safety analyse of steam turbine with accessories
Soukeník, Martin ; Turbomachinery), (Siemens (referee) ; Němec, Zdeněk (advisor)
This bachelor thesis deals by analysis functional safety protections of steam turbine. Safety functions are sorted to the relevant integrity level, is made calculation of average probability of failure and validated safety factor of safety instrumented system according to ČSN EN 61511 and ČSN EN 61508. Is made probability of failure emergency oil pump start-up calculation during shutdown of turbo set.
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Diagnostic of System Reliability
Bábek, Tomáš ; Pohl, Jan (referee) ; Havlíková, Marie (advisor)
This thesis is oriented to the reliability theory and diagnostics. It involves brief explanation of terms that exists in a branches of technical devices reliability. The next part contains determining the reliability indexes, calculations of probabilities and statistics for electronic devices. I do mention the different methods of reliability diagnostics. The three most used of them are described. First of them is the reliability block model. By this I describe the serial reliability model, the parallel reliability model and the combination of them. Using this method is the simple way to show how each component affects reliability of the whole system. The second method is FMEA (Failure Mode and Effects Analysis) which is used mostly in the begining of the system designing. The third method is FTA (Fault tree analysis) which is one of the classic deductive methods. The FTA method is a graphical reliability model of a given system. By the end of this thesis, process of calculating the failure probability and the other reliability indexes of a given komponent (preamplifier with operational amplifier) is shown.
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Safety analyse of steam turbine with accessories
Soukeník, Martin ; Turbomachinery), (Siemens (referee) ; Němec, Zdeněk (advisor)
This bachelor thesis deals by analysis functional safety protections of steam turbine. Safety functions are sorted to the relevant integrity level, is made calculation of average probability of failure and validated safety factor of safety instrumented system according to ČSN EN 61511 and ČSN EN 61508. Is made probability of failure emergency oil pump start-up calculation during shutdown of turbo set.
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