Seismic analysis of tube bundle is of paramount importance in the safety assessment of nuclear installations. These analyses require in particular the calculation of frequency, mode shape and effective mass of the system eigenmodes. As fluid-structure interaction effects can significantly affect dynamic behaviour of immersed structures, the numerical modeling of the tube bundle has to take into account FSI. A complete modeling of heat exchangers (including pressure vessel, tubes and fluid) is not accessible to the engineer for industrial design studies. In the past decades, homogenization methods have been studies and developed in order to model tubes and fluid through an equivalent continuous media, thus avoiding the tedious task to mesh all structure and fluid sub-domains within the tube bundle. Few of these methods have nonetheless been implemented in industrial finite element codes. In previous papers (Sigrist & Broc, Pressure Vessel and Piping, Vancouver, July 2006), a homogenization method has been developed and applied to an industrial case for the modal analysis of a nuclear rector with internal structures and coupling effects modeling. The present paper aims at investigating the application of the proposed method for the dynamic analysis of tube bundle. The homogenization method is compared with direct and indirect fluid-structure coupled methods for the calculation of eigenmode frequencies, shapes and modal masses.
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ASME 2007 Pressure Vessels and Piping Conference
July 22–26, 2007
San Antonio, Texas, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4282-7
PROCEEDINGS PAPER
Investigation of Numerical Methods for Modal Analysis of a Tube Bundle With Fluid-Structure Interaction Available to Purchase
Jean-Franc¸ois Sigrist,
Jean-Franc¸ois Sigrist
DCN Propulsion, La Montagne, France
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Daniel Broc
Daniel Broc
CEA - Saclay, Gif sur Yvette, France
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Jean-Franc¸ois Sigrist
DCN Propulsion, La Montagne, France
Daniel Broc
CEA - Saclay, Gif sur Yvette, France
Paper No:
PVP2007-26037, pp. 31-40; 10 pages
Published Online:
August 20, 2009
Citation
Sigrist, J, & Broc, D. "Investigation of Numerical Methods for Modal Analysis of a Tube Bundle With Fluid-Structure Interaction." Proceedings of the ASME 2007 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. San Antonio, Texas, USA. July 22–26, 2007. pp. 31-40. ASME. https://doi.org/10.1115/PVP2007-26037
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