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Influence of hysteresis on the dynamics of cryogenic LNG composite hoses

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Author: Mallon, N.J. · Weijde, G.D. van der
Type:article
Date:2011
Source:Proceedings of the ASME Offshore Mechanics and Arctic Engineering Conference OMAE 2011, 19-24 June 19-24, 2011, Rotterdam, Netherlands, 4, 199-208
Identifier: 426912
ISBN: 9780791844366
Article number: OMAE2011-49188
Keywords: Architecture · Bending behaviour · Dynamic environments · Friction models · Frictional effects · Measurement results · Steady-state response · Building Engineering & Civil Engineering · CMC - Centre for Mechanical & Mar. Con. · TS - Technical Sciences

Abstract

In order to assess the influence of hysteretic bending behaviour of hoses used for LNG transfer in dynamic environments, a modelling strategy is set up. The modelling allows to include arbitrary internal frictional effects in the hose. After identifying the parameters for various friction models based on measurement results performed on the cryogenic hose, the model is exploited further to study other cases. For hose release events, inclusion of hysteresis accurately seems less importance while for more slowly varying steady-state responses, the way how internal friction in the hose is included may have significant effects.