Frictionless Bellows Unit Connected with the Magnetorheological Valve

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU119147" target="_blank" >RIV/00216305:26210/16:PU119147 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Frictionless Bellows Unit Connected with the Magnetorheological Valve
Original language description
Dynamic 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.
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
ENGINEERING MECHANICS 2016
ISBN
978-80-87012-59-8
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
354-357
Publisher name
Institute of Thermomechanics Academy of Sciences of the Czech Republic
Place of publication
Praha
Event location
Svratka
Event date
May 9, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000379986700085

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