000012434 001__ 12434
000012434 005__ 20160816141445.0
000012434 04107 $$aeng
000012434 046__ $$k2016-05-09
000012434 100__ $$aKholmetska, I.
000012434 24500 $$aNUMERICAL MODELING OF MAGNETOSTRICTIVE MATERIALS

000012434 24630 $$n22.$$pEngineering Mechanics 2016
000012434 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000012434 506__ $$arestricted
000012434 520__ $$2eng$$aAn operator-differential model for magnetostrictive energy harvesting proposed in the literature is used to calculate the amount of harvested energy under some uncertainty in the Preisach density function. The uncertainty is modeled through a fuzzy set approach. In galfenol, an alloy of gallium and iron, however, the hysteresis phenomenon is present only weakly. This allows to propose a simpler, but computationally faster model without hysteresis. The new, simpler model has been identified from the measured magnetic and magnetostrictive cycles. The amount of harvested energy is of the same order in both models. Again, an uncertainty in the identified model can be considered and its impact on the amount of the harvested energy calculated. 

000012434 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012434 653__ $$aMagnetostrictive materials, hysteresis, energy harvesting, uncertainty quantification, identification of parameters.

000012434 7112_ $$aEngineering Mechanics 2016$$cSvratka, CZ$$d2016-05-09 / 2016-05-12$$gEM2016
000012434 720__ $$aKholmetska, I.$$iChleboun, J.$$iKrejčí, P.
000012434 8560_ $$ffischerc@itam.cas.cz
000012434 8564_ $$s480208$$uhttps://invenio.itam.cas.cz/record/12434/files/064bo_o_sol.pdf$$yOriginal version of the author's contribution as presented on CD, id 064, section SOL.
000012434 962__ $$r12369
000012434 980__ $$aPAPER