Vibration of the liner in an industrial combustion system due to an acoustic field


Huls, Rob A. and Kok, Jim B.W. and Boer, André de (2003) Vibration of the liner in an industrial combustion system due to an acoustic field. In: International Forum on Aeroelasticity and. Structural Dynamics, June 4-6, 2003, Amsterdam, The Netherlands.

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Abstract:The subject of this paper is a numerical study of the properties of the liner of a test rig to be built in the future. The test-rig consists of a flexible tube of square crosssection surrounded by a pressure vessel, also with a square cross-section. At first instance, a two dimensional structural analytical model of the cross-section is made. The influence of the air between liner and pressure vessel and that within the liner on the vibration of the liner is studied using a coupled 2D finite element model. Furthermore the influence of the vibration of the liner on the acoustics of the setup is studied. After this the problem is extended to three dimensions and again the influence of the cavity surrounding the liner is analyzed. Both 2D and 3D results are compared. The cavities are found to substantially influence the structural behavior and therefore they cannot be neglected in predicting the behavior of the liner.
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Engineering Technology (CTW)
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Metis ID: 216564