Study on Flow and Stress Analysis of Gas Turbine Blade

가스 터빈 블레이드의 유동 및 응력 해석에 관한 연구

  • 조재웅 (공주대학교 기계자동차공학부) ;
  • 한문식 (계명대학교 기계자동차공학과)
  • Received : 2011.03.15
  • Accepted : 2011.06.24
  • Published : 2011.06.30

Abstract

Turbine blades operate under high temperature and pressure. The influence changes according to its width and angle. Thermal stress and pressure are important factors to analyze the stress distribution. The purpose of this study is to investigate the effects of loads on the gas turbine blade using thermal stress analysis. These analysis results show the gas fluid flow with a high pressure around the surface of blade. Gas temperature is related to the pressure of flow around the blade. The stress concentration around blade is shown and the concentration is due to the difference between suction side and pressure side of combustion gas.

Keywords

References

  1. Yun, T. J., Kim, D. H., Kim, D. H., Park, N. K. and Suk, J. I., "Structural Evaluation and life assessment of 5MW power generation Gas turbine blade", Autumn Conference Proceeding of KSME, pp. 556-561, 2010.
  2. Yoon, G. B., Ma, Y. W., Kim, Y. I., Cha, S. J. and Kim, Y. J., "Failure Analysis of Gas Turbine Compressor Blades", Spring Conference Proceeding of KSME, pp. 185-190, 2005.
  3. Choi, I. K. and Kim, J. A., "A Simulation for Analysis of Stability of Gas Turbine Governor using PSS/E", Fall Conference Proceeding of Korea Society for Simulation, pp. 267-271, 1999.
  4. Park, P. G., Jeong, E. H. and Kim, J. H., "Numerical Analysis of Two-Stage Turbopump Turbines", KAEA, Vol. 7, No. 2, pp. 151-156, 2008.
  5. Swanson, J., 2008, Ansys 11.0, Ansys. inc., U.S.A.
  6. Park, K. H., Min, T. K. and Park, C. S., "A Study on Coupled Field Analysis of 3-D Gas Turbine Blade", Trans. of KSMTE, Vol. 15, No. 2, pp. 38-43, 2006.
  7. Kwak, J. S., "Effect of Blade Tip Geometry on Heat Transfer Coefficients on Gas Turbine Blade Tips and Near Tip Regions", Trans. of KSME(B), Vol. 30, No. 4, pp. 328-336, 2006.