Thermal stresses investigation of a gas turbine blade Conference Paper uri icon

abstract

  • The analysis of structural and thermal stress values that are produced while the turbine is operating are the key factors of study while designing the next generation gas turbines. The present study examines structural, thermal, modal analysis of the first stage rotor blade of a two stage gas turbine. The design features of the turbine segment of the gas turbine have been taken from the preliminary design of a power turbine for maximization of an existing turbojet engine with optimized dump gap of the combustion chamber, since the allowable temperature on the turbine blade dependents on the hot gas temperatures from the combustion chamber. In the present paper simplified 3-D Finite Element models are developed with governing boundary conditions and solved using the commercial FEA software ANSYS. As the temperature has a significant effect on the overall stress on the rotor blades, a detail study on mechanical and thermal stresses are estimated and evaluated with the experimental values. © 2012 American Institute of Physics.

author list (cited authors)

  • Gowreesh, S., Pravin, V. K., Rajagopal, K., & Veena, P. H.

publication date

  • January 1, 2012 11:11 AM

publisher

  • AIP  Publisher