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Vibrations are unavoidable phenomena in any working machine. Gas turbines are not an exception. Vibrations in a typical combustion chamber of a gas turbine are directly related to pressure changes induced by the flow and fluctuation in heat release by the flame. When thermo-acoustic instabilities are not present in the system, the amplitude of vibration is relatively small and the turbine can work for a desired long In Chapter 4 fluid-structure interaction computations (FSI) between flue gas and liner, with the use of a partitioned approach are presented. The Ansys-CFX code for the CFD computations is combined with the Ansys Multiphysics code for the FEA into one computational process. The exchange of information between the codes is done through

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