Stress Analysis and Optimum Profile Shape Design in Gas Turbine Engine Disk, M.Sc. Thesis Sharif University of Technology ; Kouchakzadeh, Mohammad Ali (Supervisor)
Abstract
In this thesis, turbine disk thermo elastic and creep stresses has been extracted and the turbine disk cross-section is optimized. Gas turbine disks are used at high temperature and high rotational speed. Due to high temperatures gradients, the mechanical properties vary along the radius of the disk. Most of the stresses in the gas turbine are exerted by centrifugal force and thermal strains. At first, thermo elastic and creep equations for these disks are derived, assuming plane stress and axisymmetry. The resulting differential equations are nonlinear and can not be solved using analytical solutions. Two methods are used to solve the equations which finally are verified employing the...
Cataloging briefStress Analysis and Optimum Profile Shape Design in Gas Turbine Engine Disk, M.Sc. Thesis Sharif University of Technology ; Kouchakzadeh, Mohammad Ali (Supervisor)
Abstract
In this thesis, turbine disk thermo elastic and creep stresses has been extracted and the turbine disk cross-section is optimized. Gas turbine disks are used at high temperature and high rotational speed. Due to high temperatures gradients, the mechanical properties vary along the radius of the disk. Most of the stresses in the gas turbine are exerted by centrifugal force and thermal strains. At first, thermo elastic and creep equations for these disks are derived, assuming plane stress and axisymmetry. The resulting differential equations are nonlinear and can not be solved using analytical solutions. Two methods are used to solve the equations which finally are verified employing the...
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