The paper outlines a finite elements refined mathematical model of the thermal state of modern single shaft gas turbine engine that can be used in ground or floating power plants.The mathematical model is based on special finite elements of hexagonal type.On the base of the developed mathematical model the turbine rotor temperature field was found and experimentally verified.Using the results of temperature field calculation the rotor thermal deformations and stresses have been found too.The obtained results could be used in further studies of the turbine rotor stress-strain state and fatigue strength.
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