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MACHÁČEK, O. KUBÍK, M. STRECKER, Z. ROUPEC, J. MAZŮREK, I.
Original Title
Design of a frictionless magnetorheological damper with a high dynamic force range
Type
journal article in Web of Science
Language
English
Original Abstract
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.
Keywords
Magnetorheological damper, frictionless, dynamic force range, metal bellows, transfer ratio
Authors
MACHÁČEK, O.; KUBÍK, M.; STRECKER, Z.; ROUPEC, J.; MAZŮREK, I.
Released
19. 3. 2019
Publisher
SAGE
ISBN
1687-8132
Periodical
Advances in Mechanical Engineering
Year of study
11
Number
3
State
United Kingdom of Great Britain and Northern Ireland
Pages from
1
Pages to
8
Pages count
URL
https://doi.org/10.1177/1687814019827440
Full text in the Digital Library
http://hdl.handle.net/11012/180709
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", journal="Advances in Mechanical Engineering", year="2019", volume="11", number="3", pages="1--8", doi="10.1177/1687814019827440", issn="1687-8132", url="https://doi.org/10.1177/1687814019827440" }