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Presentation on computational methods for the simulation of stresses in turbine blades of jet engines, Northern-German Mechanics Colloquium 2019, Bremen

  • University of Bremen Bibliothekstraße 1 28359 Bremen Germany (map)

Presentation at the 143. Northern-German Mechanics Colloquium in Bremen, organized by the Bremen In­sti­tute for Me­cha­nical En­gi­nee­ring.

Title:

Numerical methods for the simulation of deformations and stresses in turbine blade fir-tree connections

Abstract:

In this presentation, different numerical methods for the simulation of deformations and stresses in turbine blade fir-tree connections are discussed. The main focus is on the Method of Dimensionality Reduction (MDR) and the Boundary Element Method (BEM). Generally, fir-tree connections require a computationally expensive finite element setup. Their complex geometry exceeds the limitations of the faster numerical techniques which are used with great success within the framework of the half-space approximation. Ways to extend the range of application of the MDR and the BEM to the particular problem of the highly undulating surfaces of the fir-tree connection are shown and discussed.