Magnetic accumulation of kinetic energy from a reciprocating mechanical system for a dynamic behaviour improvement

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dc.contributor.authorValtera, Jan
dc.contributor.authorSvobodova, Jana
dc.contributor.authorStrnad, Michal
dc.contributor.authorZabka, Petr
dc.contributor.authorKubes, Vitezslav
dc.date.accessioned2019-07-29T09:25:48Z
dc.date.available2019-07-29T09:25:48Z
dc.date.issued2019-07-07
dc.description.abstractThis paper presents a magnetic means of accumulating kinetic energy from a traversing rod (TR) used to guide yarn during winding processes on rotor spinning machines. A passive magnetic system for accumulating kinetic energy at the reversal points of reciprocating motion is introduced, and its unique repulsive magnetic force is described in relation to the specific traversing-motion characteristic. The magnetic damping force phenomenon and preconditions for its application in the machine are also defined and discussed. We also show magnetic field optimisation by means of pole-piece geometry modification to obtain a magnetic force characteristic that closely approximates the required motion characteristic. Thus, the efficiency of kinetic-energy accumulation at the reversal points of the reciprocating motion of the TR is increased. The utilisation of an eddy-current effect on the accumulator body to apply the magnetic-damping phenomenon for vibration reduction is also described. The results of this work demonstrate the promise of the system using modern rare-earth compound-based magnets applicable not only to the studied traversing system but also to various mechanical devices as a non-contact means of reducing deformation and vibration. The developed and experimentally verified mathematical models presented here represent a useful tool for further optimisation of specific applications in the field of mechanics. (C) 2019 Elsevier Ltd. All rights reserved.cs
dc.identifier.doi10.1016/j.jsv.2019.03.016
dc.identifier.urihttps://dspace.tul.cz/handle/15240/152995
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0022460X19301762?via%3Dihub
dc.language.isocscs
dc.relation.ispartofJOURNAL OF SOUND AND VIBRATION
dc.subjectMagnetic dampingcs
dc.subjectMagnetic springcs
dc.subjectKinetic energycs
dc.subjectAccumulationcs
dc.subjectPermanent magnetcs
dc.subjectReciprocating motioncs
dc.titleMagnetic accumulation of kinetic energy from a reciprocating mechanical system for a dynamic behaviour improvementcs
local.citation.epage146
local.citation.spage138
local.identifier.publikace7092
local.relation.volume451
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