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Article history: Received 6 January, 2015 Accepted 20 May 2015 Available online 22 May 2015 In advanced modern turbines, the temperature of the turbine's first blade row which is called the turbine's hot part, increases almost as 1000°C. These blades must operate for long periods of time. Since, the main failure reason of the parts operating under high temperature and cyclic loading conditions is fatigue as well as creeping phenomena, acquiring an accurate estimate of these blades' lifetime under creeping and fatigue interactions is very necessary for theoretical and practical requirements. The fatigue of the first blade row of the micro turbine TRI60 is analyzed in this study. For the purpose of estimating the fatigue lifetime of turbine and motor, heat transfer of blades as well as thermal stress is analyzed at first via ABAQUS software. Consequently, a fatigue analysis under full cycle and within the interval of to is performed using Smith-Watson-Taper algorithm and transient modal analysis via Fe-safe software. © 2015 Growing Science Ltd. All rights reserved.

Fatigue analysis for the first row of blades of a micro turbine under full loading cycle using transient modal analysis