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LIU Zong-de, YANG Kun, WANG Xie-shan, Zhao Min. A STUDY ON CREEP STRAIGHTENING OF A ROTOR OF STEAM TURBINE[J]. Engineering Mechanics, 1999, 16(4): 131-135.
Citation: LIU Zong-de, YANG Kun, WANG Xie-shan, Zhao Min. A STUDY ON CREEP STRAIGHTENING OF A ROTOR OF STEAM TURBINE[J]. Engineering Mechanics, 1999, 16(4): 131-135.
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A STUDY ON CREEP STRAIGHTENING OF A ROTOR OF STEAM TURBINE

  • North China Electric Power University, Beijing, 102206;2. Northeast Electric University for Workers, 110015

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  • Received Date: May 31, 1997
  • Revised Date: December 31, 1899
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    • Abstract
  • The creep behavior of 30CrZMoV steel of rotor at high temperature was studied experimentally. Based on existing creep theory and the spline function collocation method, an algorithm was developed to calculate the transient creep strain and stress of a rotor of steam turbine to be straightened. The transient creep displacement, the residual bending value and the residual stress after unloading were also predicted by the software. The numerical results show that the present method is reasonable and helpful in providing guidelines on defining loading and heating scheme for the creep straightening of rotors.
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