Detail publikace
Design of a frictionless magnetorheological damper with a high dynamic force range
MACHÁČEK, O. KUBÍK, M. STRECKER, Z. ROUPEC, J. MAZŮREK, I.
Anglický název
Design of a frictionless magnetorheological damper with a high dynamic force range
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
This article discusses an increase in dynamic force range in a spring-damper unit achieved by elimination of sealings´ friction. This friction is a part of damping force that cannot be controlled; therefore, it is undesirable in magnetorheological dampers. A new design of a magnetrheological damper with no friction force is descrbed and compared with a traditional magnetorheological damper consisting of a piston and piston rod seals. In the traditional design, fluid is forced to flow by a hydraulic cylinder with high friction caused by sealings. In order to eliminate this friction, a frictionless unit made of metal bellows was designed. Elastic metal bellows can be sealed only by static seals. The measurement of force-velocity dependency was carried out for the original and the new damper with the same magnetorheological valve. The results indicate that the frictionless unit exhibits a significant improvement in the dynamic force range. In the case of adaptive-passive damping control, the increase in the dynamic force range enables the improvement of vibration elimination in the entire frequency range.
Anglický abstrakt
This article discusses an increase in dynamic force range in a spring-damper unit achieved by elimination of sealings´ friction. This friction is a part of damping force that cannot be controlled; therefore, it is undesirable in magnetorheological dampers. A new design of a magnetrheological damper with no friction force is descrbed and compared with a traditional magnetorheological damper consisting of a piston and piston rod seals. In the traditional design, fluid is forced to flow by a hydraulic cylinder with high friction caused by sealings. In order to eliminate this friction, a frictionless unit made of metal bellows was designed. Elastic metal bellows can be sealed only by static seals. The measurement of force-velocity dependency was carried out for the original and the new damper with the same magnetorheological valve. The results indicate that the frictionless unit exhibits a significant improvement in the dynamic force range. In the case of adaptive-passive damping control, the increase in the dynamic force range enables the improvement of vibration elimination in the entire frequency range.
Klíčová slova anglicky
Magnetorheological damper, frictionless, dynamic force range, metal bellows, transfer ratio
Vydáno
19.03.2019
Nakladatel
SAGE
ISSN
1687-8132
Ročník
11
Číslo
3
Strany od–do
1–8
Počet stran
8
BIBTEX
@article{BUT156410,
author="Ondřej {Macháček} and Michal {Kubík} and Zbyněk {Strecker} and Jakub {Roupec} and Ivan {Mazůrek},
title="Design of a frictionless magnetorheological damper with a high dynamic force range",
year="2019",
volume="11",
number="3",
month="March",
pages="1--8",
publisher="SAGE",
issn="1687-8132"
}