The thermo-mechanical stresses analysis in an internally cooled first stage bucket, applying the finite element analysis (FEA) and computational fluid dynamics (CFD) is presented. In this analysis two cases are considered; first one where the model is solved using constraint equations in two zones, blade-platform and platform-root, obtaining the distribution of stresses which is in agreement with the physical problem, nevertheless due to the application of the constraint equations it was observed that the model has numerical limitations to obtain results. For the second case, without constraint equations, a geometry that include all the zones of the blade is achieved, generating a new mesh on which the same analysis was realized (thermo-mechanic) obtaining similar magnitudes of stresses like the first one model, but without numerical limitations. In both cases, the analysis was done using a complete model in 3D including the internal cooling channels. To carry out this analysis it was necessary to apply an interface FLUENT-ANSYS (FAI) to transfer the temperature data from an analysis obtained with a CFD model in steady state to the finite element model. A methodology was developed to eliminate to constraint equations in the finite element model across skills of union elements to achieve a uniform mesh in the whole model. The results show that an analysis without constraint equations, to avoid geometric simplifications and numerical limitations, permitting to obtain better results in the analysis of thermo-mechanics stress in blades of a gas turbine.
Skip Nav Destination
ASME 2010 Power Conference
July 13–15, 2010
Chicago, Illinois, USA
Conference Sponsors:
- Power Division
ISBN:
978-0-7918-4935-4
PROCEEDINGS PAPER
Influence of the Constraint Equations in the Thermo-Mechanics Stress Analysis in Blades of Gas Turbine
Vicente Pe´rez Garci´a,
Vicente Pe´rez Garci´a
University of Guanajuato, Salamanca, GTO, Me´xico
Search for other works by this author on:
Armando Gallegos Mun˜oz,
Armando Gallegos Mun˜oz
University of Guanajuato, Salamanca, GTO, Me´xico
Search for other works by this author on:
Rafael A. Rodri´guez Cruz,
Rafael A. Rodri´guez Cruz
University of Guanajuato, Salamanca, GTO, Me´xico
Search for other works by this author on:
Juan M. Belman-Flores,
Juan M. Belman-Flores
University of Guanajuato, Salamanca, GTO, Me´xico
Search for other works by this author on:
Alfonso Campos Amezcua,
Alfonso Campos Amezcua
Instituto de Investigaciones Ele´ctricas, Cuernavaca, MOR, Me´xico
Search for other works by this author on:
Z. Mazur
Z. Mazur
Instituto de Investigaciones Ele´ctricas, Cuernavaca, MOR, Me´xico
Search for other works by this author on:
Vicente Pe´rez Garci´a
University of Guanajuato, Salamanca, GTO, Me´xico
Armando Gallegos Mun˜oz
University of Guanajuato, Salamanca, GTO, Me´xico
Rafael A. Rodri´guez Cruz
University of Guanajuato, Salamanca, GTO, Me´xico
Juan M. Belman-Flores
University of Guanajuato, Salamanca, GTO, Me´xico
Alfonso Campos Amezcua
Instituto de Investigaciones Ele´ctricas, Cuernavaca, MOR, Me´xico
Z. Mazur
Instituto de Investigaciones Ele´ctricas, Cuernavaca, MOR, Me´xico
Paper No:
POWER2010-27088, pp. 703-710; 8 pages
Published Online:
December 24, 2010
Citation
Pe´rez Garci´a, V, Gallegos Mun˜oz, A, Rodri´guez Cruz, RA, Belman-Flores, JM, Campos Amezcua, A, & Mazur, Z. "Influence of the Constraint Equations in the Thermo-Mechanics Stress Analysis in Blades of Gas Turbine." Proceedings of the ASME 2010 Power Conference. ASME 2010 Power Conference. Chicago, Illinois, USA. July 13–15, 2010. pp. 703-710. ASME. https://doi.org/10.1115/POWER2010-27088
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Thermomechanical Transient Analysis and Conceptual Optimization of a First Stage Bucket
J. Turbomach (January,2011)
Compressor Fouling Modeling: Relationship Between Computational Roughness and Gas Turbine Operation Time
J. Eng. Gas Turbines Power (May,2012)
Biaxial Thermomechanical-Fatigue Life Property of a Directionally Solidified Ni-Base Superalloy
J. Eng. Gas Turbines Power (November,2008)
Related Chapters
Stress Analysis of Gas Turbine Blade under Different Loads Using Finite Element Modeling
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Subsection NB—Class 1 Components
Companion Guide to the ASME Boiler & Pressure Vessel Code, Volume 1, Second Edition