Numerical Study on Creep Properties of the Governing Stage Blade for Large Power Steam Turbine Considering Airflow Force

Rui Shan Yuan; Tian Yuan Liu

doi:10.4028/www.scientific.net/AMM.490-491.437

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 490-491Numerical Study on Creep Properties of the...

Numerical Study on Creep Properties of the Governing Stage Blade for Large Power Steam Turbine Considering Airflow Force

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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Periodical:

Applied Mechanics and Materials (Volumes 490-491)

Pages:

437-441

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.490-491.437

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Online since:

January 2014

Authors:

Rui Shan Yuan*, Tian Yuan Liu

Keywords:

Airflow Force, Creep, Finite Element, Large Power, Thermo-Elastic

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* - Corresponding Author

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