THEORETICAL RESEARCH OF MECHANICAL BEHAVIOR OF MAGNETO-RHEOLOGICAL FLUID

This paper is intended to research of mechanical behaviour of magneto-rheological fluid in magnetic field. This liquid is with highly non-linear properties in magnetic field and their mechanical behaviour cannot be obtained directly. Additional pressure generated by magnetic field strength causes change of magneto-rheological fluid surface, therefore the system can be treated as mechanical. There is presented algorithm of evaluation of researched liquid additional pressure from magnetic field influence, which is caused by current in the solenoid. There is algorithm and method proposed how finite element method can be used to find additional pressure. The results of this solution give understanding of additional pressure characteristics of magneto-rheological fluid and possibility to use it for magnetically driven mechanical drive. Finally, conclusions on results are made.Original Abstract: Darbe nagrinejama, kaip keiciasi magnetoreologiniu skysciu mechanines savybes nuolatiniame magnetiniame lauke. Kadangi siu skysciu savybes magnetiniame lauke kinta netiesiskai, tiesiogiai jas ismatuoti sunku. Magnetinio lauko sukuriamas papildomas slegis keicia magnetoreologinio skyscio pavirsiaus padeti, todel tokia sistema gali buti laikoma mechanine. Darbe pateiktas algoritmas, leidziantis nustatyti papildoma slegi, atsirandanti magnetoreologiniame skystyje del solenoide tekancios elektros sroves sukurto magnetinio lauko poveikio. Pateikiamas algoritmas ir metodas, kaip baigtiniu elementu metodu gauta rezultata panaudoti papildomam slegiui rasti. Tyrimo rezultatai rodo skystyje isorinio magnetinio lauko sukeliamo slegio charakteristikas ir galimybes panaudoti si skysti mechaninese sistemose. Pateikti gauti rezultatai ir isvados.