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Stress Distribution and Deformation Analysis of Gas Turbine Blades and Disk With FEM Method

[+] Author Affiliations
Yang Fengna, Pan Chengxiong, Zhang Dongfang, Tang Jian, Yan Jing

Shanghai Electric Gas Turbine Co., Ltd, Shanghai, China

Paper No. POWER-ICOPE2017-3409, pp. V001T02A007; 9 pages
doi:10.1115/POWER-ICOPE2017-3409
From:
  • ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum
  • Volume 1: Boilers and Heat Recovery Steam Generator; Combustion Turbines; Energy Water Sustainability; Fuels, Combustion and Material Handling; Heat Exchangers, Condensers, Cooling Systems, and Balance-of-Plant
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: Power Division, Advanced Energy Systems Division, Solar Energy Division, Nuclear Engineering Division
  • ISBN: 978-0-7918-5760-1
  • Copyright © 2017 by ASME

abstract

This paper has studied the stress distribution and deformation of the fourth stage turbine blades and disk of a certain kind of heavy gas turbine with FEM method. The calculating model is assembled turbine blades and disk, and the analysis includes 2-D and 3-D situations. By calculating under centrifugal force and thermal loads, the conclusion of whether the turbine blades and disk were safe and the strength characteristics were drawn. The results shown that stress concentration of the structure is a problem that can’t be ignored. To enhance the security of structure, optimizing of the structure is recommended. Also, the results shown that structure deformation is caused mostly by thermal load and structure stress is caused mostly by centrifugal force. ( CSPE)

Copyright © 2017 by ASME

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