Thermo-mechanical fatigue prediction of a steam turbine shaft

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00321766" target="_blank" >RIV/68407700:21220/18:00321766 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/matecconf/201816522016" target="_blank" >http://dx.doi.org/10.1051/matecconf/201816522016</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/matecconf/201816522016" target="_blank" >10.1051/matecconf/201816522016</a>

Result language
angličtina
Original language name
Thermo-mechanical fatigue prediction of a steam turbine shaft
Original language description
The increasing demands on the flexibility of steam turbines due to the use of renewable energy sources substantially alters the fatigue strength requirements of components of these devices. This paper presents Thermo-Mechanical Fatigue (TMF) design calculations for the steam turbine shaft. The steam turbine shaft is exposed to complex thermo-mechanical loading conditions during the operating cycle of the turbine. An elastic-plastic structural Finite Element Analysis (FEA) of the turbine shaft is performed for the turbine operating cycle on the basis of calculated temperature fields obtained in a previous transient thermal FEA. The temperature dependent material parameters, which are used in the elastic-plastic FEA, are obtained from the uniaxial tests. Consequently, the TMF is predicted for the steam turbine shaft. Several fatigue criteria are used for the identifications of the critical domain and for the TMF damage assessment of the turbine shaft.
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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