Journal of Zhejiang University-SCIENCE A

, Volume 12, Issue 3, pp 214–222

Prediction of thermal fatigue life of a turbine nozzle guide vane

Authors

    • State Key Laboratory of Automotive Safety and EnergyTsinghua University
  • Tao Du
    • Beijing Power Machinery Research Institute
  • Yang-jun Zhang
    • State Key Laboratory of Automotive Safety and EnergyTsinghua University
Article

DOI: 10.1631/jzus.A1000233

Cite this article as:
Zheng, X., Du, T. & Zhang, Y. J. Zhejiang Univ. Sci. A (2011) 12: 214. doi:10.1631/jzus.A1000233

Abstract

Thermal fatigue (TF) is one of the most important factors that influence turbine’s life. This paper establishes a 3D solid-fluid coupling model for a steady temperature analysis of a high-pressure turbine nozzle at different turbine inlet gas total temperatures (TIGTTs). The temperature analysis supplies the temperature load for subsequent 3D finite element analysis to obtain the strain values. Following this, the prediction of the TF life is made on the basis of equivalent strain range. The results show that the strain increases with TIGTT, and the predicted TF life decreases correspondingly. This life prediction was confirmed by one TF test.

Key words

EngineNozzle guide vaneThermal fatigue (TF) lifeSolid-fluid

CLC number

V235.1

Copyright information

© Zhejiang University and Springer-Verlag Berlin Heidelberg 2011