Presentation at the 143. Northern-German Mechanics Colloquium in Bremen, organized by the Bremen Institute for Mechanical Engineering.
Numerical methods for the simulation of deformations and stresses in turbine blade fir-tree connections
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.