000012454 001__ 12454
000012454 005__ 20160816141446.0
000012454 04107 $$aeng
000012454 046__ $$k2016-05-09
000012454 100__ $$aMacháček, O.
000012454 24500 $$aFRICTIONLESS BELLOWS UNIT CONNECTED WITH THE MAGNETORHEOLOGICAL VALVE

000012454 24630 $$n22.$$pEngineering Mechanics 2016
000012454 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000012454 506__ $$arestricted
000012454 520__ $$2eng$$aDynamic range is one of the key parameter for effective control of magneto-rheological (MR) dampers in suspensions controlled by semi-active algorithms. This article discusses dynamic range increase ensured by elimination of friction in a device which forces fluid to flow through MR valve. The friction affects a force velocity dependency. It is a part of force that cannot be controlled. Therefore friction is unwanted in MR dampers or valves. This article describes the two versions of volumetric unit with MR valve. First, the fluid was forced by hydraulic cylinder with high friction. In order to eliminate friction, a unique volumetric unit was designed and used instead of hydraulic cylinder. It uses elastic metal bellows which can be sealed by static seals, therefore there is no contact between moving parts. Measurement of force velocity dependency was carried out for original and new volumetric unit connected with the same MR valve. The results showed that the frictionless unit exhibits a significant improvement of dynamic range for the whole range of velocities compared to original piston unit. That has positive impact to efficiency of vibration elimination of MR valve using semi-active control.

000012454 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012454 653__ $$aVibration, Dynamic range, Magneto-rheological valve, Frictionless, Bellows

000012454 7112_ $$aEngineering Mechanics 2016$$cSvratka, CZ$$d2016-05-09 / 2016-05-12$$gEM2016
000012454 720__ $$aMacháček, O.$$iKubík, M.$$iMazůrek, I.$$iStrecker, Z.$$iRoupec, J.
000012454 8560_ $$ffischerc@itam.cas.cz
000012454 8564_ $$s725101$$uhttps://invenio.itam.cas.cz/record/12454/files/084bo_o_dyn.pdf$$yOriginal version of the author's contribution as presented on CD, id 084, section DYN.
000012454 962__ $$r12369
000012454 980__ $$aPAPER