Karakterizacija odziva magnetoaktivnih lamel na homogeno zunanje magnetno polje

magistrsko delo

Izidor Straus (Author), Irena Drevenšek Olenik (Mentor), Gašper Kokot (Co-mentor)

Abstract

V tem zaključnem delu podrobno obravnavamo magnetoaktivne elastomere (MAE), ki so strukturirani z lamelami na površini. Opišemo osnovno karakterizacijo relaksacijskih časov in histereznega odziva struktur v homogenem magnetnem polju. Za analizo uporabimo direktno meritev sledenja vrhovom upogibajočih lamel in indirektno meritev njihove reflektivnosti, kot nadomestne opazljivke. Rezultate primerjamo s kontinuumsko teorijo upogibanja lamel, ki nam služi za vpogled v mehanizme premikanja struktur. Razložimo in demonstriramo, da so MAE lamele zaradi histereznega odziva v realnem času primerne za izdelavo transportnih površin za tekočine, aktivnih mikrofluidičnih vezij ter opišemo njihovo potencialno uporabnost v regulabilnih optičnih zaslonkah in uklonskih mrežicah. Zaključimo s predlogi za nadaljnje eksperimente z namenom uporabe v mikrofluidiki in mehki robotiki.

Keywords

magnetoaktivni elastomeri;magnetoaktivne lamele;mikrostrukturiranje;transportne površine;mikrofluidika;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.09 - Master's Thesis
Organization:	UL FMF - Faculty of Mathematics and Physics
Publisher:	[I. Straus]
UDC:	539.2
COBISS:	164276483
Views:	10
Downloads:	3
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Characterization of response of magnetoactive lamellae to a homogeneous external magnetic field
Secondary abstract:	In this master thesis, we explore magnetoactive elastomers (MAEs) that are structured with lamellae on the surface. We perform basic characterization of relaxation times and the hysteresis response of the structures in a homogeneous magnetic field. For analysis, we employ direct measurement of the peak tracking of the bending lamellae and indirect measurement of their reflectivity as a proxy observable. We compare the results with the continuum theory of lamellar bending, which provides insights into the mechanisms of structure movement. We explain and demonstrate that due to their real-time hysteresis response, MAE lamellae are suitable for the fabrication of transport surfaces for liquids or for active elements in microfluidic circuits. We also describe their potential applicability in adjustable apertures and diffraction gratings. We conclude with prospects for further experiments aimed at their utilization in microfluidics and soft robotics.
Secondary keywords:	magnetoactive elastomers;magnetoactive lamellae;microstructuring;transport surfaces;microfluidics;
Type (COBISS):	Master's thesis/paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Fak. za matematiko in fiziko, Oddelek za fiziko
Pages:	61 str.
ID:	19937472