Abstract: This paper presents the effect of manufacturing tolerance on performance and stability boundaries of a transonic fan using a Reynolds-averaged Navier–Stokes simulation. The effects of tip gap and stagger angle variations ...

Abstract: The use of integrally blisk is becoming popular because of the advantages in aerodynamic efficiency and mass reduction. However, in an integrally blisk, the lack of the contact interface leads to a low structural damping ...

Abstract: This work presents an assessment of classical and state of the art reduced order modeling (ROM) techniques to enhance the computational efficiency for dynamic analysis of jointed structures with local contact nonlinearities. ...

Abstract: A numerical methodology is described to study the influence of the contact location and contact condition of friction damper in aircraft engines. A simplified beam model is used to represent the blade for the preliminary ...

Abstract: High-cycle fatigue failures of fan blade systems due to vibrational loads are of great concern in the design of aeroengines, where energy dissipation by the relative frictional motion in the dovetail joints provides the ...