Online Calculating Models of Temperature and Thermal Stresses for Turbine Rotors

Heng Liang Zhang; Dan Mei Xie; Chu Nie; Yang Heng Xiong

doi:10.4028/www.scientific.net/AMM.130-134.557

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134Online Calculating Models of Temperature and...

Online Calculating Models of Temperature and Thermal Stresses for Turbine Rotors

Abstract:

This paper presents the faster calculating models of temperature and thermal stress in a rotor based on two-dimensional axis-symmetry thermal conduction and thermo-elastic theory. The models can deal with nonlinear factors caused by temperature-dependant properties using modified Newton-Raphson iterative method. An example has been given to compare the results calculated by the models with those calculated by finite element method. It is shown that the analytical models gained have high accuracy. The iterative models can be used for online monitoring and control of turbine.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

557-560

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.557

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Online since:

October 2011

Authors:

Heng Liang Zhang, Dan Mei Xie, Chu Nie, Yang Heng Xiong

Keywords:

Analytical Model, Integral Transform, Nonlinear Differential Equations, Thermal Stress, Turbine Rotor

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