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Strength of Materials

, Volume 48, Issue 6, pp 733–739 | Cite as

Creep of Steam-Turbine Diaphragm Under Variable Loading Conditions

  • N. G. Shul’zhenkoEmail author
  • A. V. Asaenok
  • B. F. Zaitsev
  • N. N. Grishin
  • A. N. Gubskii
SCIENTIFIC AND TECHNICAL SECTION
  • 81 Downloads

The authors put forward a procedure of creep analysis for variable loading conditions, which involves the use of the incremental creep theory and finite element method. Variable loading with load increase and relief at a constant temperature is considered as a stepwise process. The authors study a growth of deflections and stress relaxation in a intermediate-cylinder diaphragm of a steam turbine in various loading modes as well as special features of residual stress distribution in fixed blades.

Keywords

diaphragm steam turbine variable loading 3D finite element creep hardening theory stepwise method 

References

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • N. G. Shul’zhenko
    • 1
    Email author
  • A. V. Asaenok
    • 1
  • B. F. Zaitsev
    • 1
  • N. N. Grishin
    • 2
  • A. N. Gubskii
    • 2
  1. 1.Podgornyi Institute for Mechanical Engineering ProblemsNational Academy of Sciences of UkraineKharkovUkraine
  2. 2.PJSC TURBOATOMKharkovUkraine

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