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Towards an analytical formulation for Fluid Structure tank vibration analysis: Modal equivalency using granular materials

Nguyen, Sinh-Khoa and Chiambaretto, Pierre-Louis and Charlotte, Miguel and Morlier, Joseph and Gourinat, Yves and Villedieu, Philippe Towards an analytical formulation for Fluid Structure tank vibration analysis: Modal equivalency using granular materials. (2018) Engineering Structures, 177. 345-356. ISSN 0141-0296

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Official URL: https://doi.org/10.1016/j.engstruct.2018.09.077

Abstract

This paper focuses on a new methodology for substitution of Liquid Hydrogen (LH2) contained in cryogenic tank in vibration analysis by using surrogate granular materials. Our analysis is limited to a 3D tank that is supposed to be fully filled with granular grains and tries to establish a modal equivalence between (tank fully filled with LH2) and (tank fully filled with granular grains) systems. For this, we determine required pre-stresses based on a homogenization technique from properties of grains. After reviewing some important mathematical formulations of vibration and homogenization model, an example of modal equivalence between these two systems is presented. Analytical results are also compared with numerical simulations in order to prove the suitability of the new method.

Item Type:Article
HAL Id:hal-01893436
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: Sinh Khoa Nguyen
Deposited On:21 Jun 2018 07:55

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