| The purpose of this paper is to improve the modeling technology, design analysis system and assessment methods of the combustor liners'intensity and life analysis by theoretical analysis, numerical simulation and verification. At the same time, it can provide an important reference for combustor design, based on the temperature-stress distribution and creep-fatigue life. Moreover, the results from this research could be used for configurations, stress analysis, and the modification of the geometry parameters of the combustor design.In this paper, transient thermal field, thermal stress and high temperature creep life in combustor were especially analyzed. ANSYS, as kind of large FEM analysis software was used here; a three-dimensional simulation model was founded by the analysis and simplification of the combustor's construction, working and load conduction. Based on the finite element theory and thermodynamic fundamental equation, the transient temperature field and stress field of combustor were simulated. In addition, probe the distribution rule of stress field and temperature field of combustor liners.On the other aspect, in this paper, combustor liners'high temperature creep-fatigue life had been investigated based on the experiment data of combustor material GH536 in ANSYS. With respect of ANSYS secondary development method of User Programmable Features, a sclerosis-damage creep constitutive model based on FORTRAN programs was implemented. By analyzing and validating a standard experiment calculated, it had been found that the results created by this method are reasonable. Some routines of this code could be modified to fit with other configurations of combustor.Therefore, the paper can create an academic base for high-temperature components'creep lifetime forecast, and could play a proper role in the engineering use.
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