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Analysis of viscoplastic properties of a magnetorheological fluid in operational conditions of a damper's work

Abstract : The main goal of this dissertation is a mathematical description and an analysis of viscoplasticproperties of magnetorheological fluid, in operational conditions of the damper’s work, as well as the determining the optimum, in view of indicated values of parameters, size of the gap for the MR fluid to flow, in these devices. A detailed analysis of literature was made. The scope of research work has been limited to two types of magnetorheological devices: the shock absorber LORD RD 1005-3 and the MR damper prototype T-MR SiMR -132 DG. On the basis of performed experiments, it has been estimated i.e.: conventional yield point and the maximum shear stress of analyzed MR fluid, including variable shear rate, intensity of current flowing in a solenoid, liquid’s temperature and the gap height. Identified viscoplastic models were used to develop a simulation that verifies the proposed mathematical model which describes the behaviour of MR fluid in operating gap of machine’s head, with data derived from performed experiments.
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https://tel.archives-ouvertes.fr/tel-00623116
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Submitted on : Tuesday, September 13, 2011 - 3:47:39 PM
Last modification on : Thursday, March 5, 2020 - 6:49:08 PM
Long-term archiving on: : Wednesday, December 14, 2011 - 2:31:30 AM

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  • HAL Id : tel-00623116, version 1

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Pawell Skalski. Analysis of viscoplastic properties of a magnetorheological fluid in operational conditions of a damper's work. Other. Université d'Orléans, 2011. English. ⟨NNT : 2011ORLE2003⟩. ⟨tel-00623116⟩

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