Abstract
As one of the critical components of the steam turbine, the security of turboset is directly affected by the reliability of the blade. In this paper, taking the governing stage blade of a large-power steam turbine for example, the thermal elasticity stress and deformation of the blade were analyzed under the action of airflow force,centrifugal force and temperature load. Then the Norton model was adopted to simulate the blade creep process of 100000 hours and the stress and strain of the blade were obtained.
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