structural and aerodynamical parametric study of truss-core ‎gas turbine rotor blade

Improvement of turbine blades is currently the prime area of research dedicated to the development of more efficient gas turbines. this study examines the structural performance of the gas turbine rotor and stator blades with the implementation of kagome trusscore structure as inner topology. the trusscore structure was hypothesised to improve the stress behaviour of the blade by reducing the mass and, hence, the centrifugal force induced by rotation, while remaining robust enough to withstand bending stress induced by the flow. in order to analyse the stress state of the trusscore model, fluid flow analysis of transonic turbomachinery was performed via the frozen rotor technique in ansys cfx and then coupled with ansys mechanical. as a result, the combined surface load of the rotor was obtained and used to estimate the structural performance. by examining the obtained complex stress state of the rotor blades, the trusscore densitydependent structural performance was derived for the given initial and boundary conditions.