DESIGN OF FAST MAGNETORHEOLOGICAL DAMPER USING SELECTIVE LASER MELTING TECHNOLOGY
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU130231" target="_blank" >RIV/00216305:26210/18:PU130231 - isvavai.cz</a>
Result on the web
<a href="http://www.engmech.cz/improc/2018/905.pdf" target="_blank" >http://www.engmech.cz/improc/2018/905.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
DESIGN OF FAST MAGNETORHEOLOGICAL DAMPER USING SELECTIVE LASER MELTING TECHNOLOGY
Original language description
Abstract: This paper examines a potential of structured magnetic circuits for a construction of piston of magnetorheological (MR) damper with short response time, great force range and good mechanical properties. Using complex structures designed according to the magnetic FEM simulation can almost eliminate eddy-currents (and thus response time), reduce the weight of magnetic circuit with only a small drop in magnetic flux in the magnetic circuit. Due to the complexity of shapes of structured magnetic circuits, selective laser melting (SLM) technology is currently considered as the only possible technology. A shape optimization with respect to SLM limitations is therefore proposed. As a material for the magnetic circuit, nearly pure Fe was chosen. This material has very good magnetic properties but the drawback is a very good electric conductivity, which causes large generation of eddy currents during rapid changes of magnetic field. Suggested structured magnetic circuit is compared to a solid magnetic circuit by means of magnetic simulations. Simulations showed that the structured geometry of magnetic circuits can effectively reduce its weight (the weight of bobbin was reduced by up to 45 % and the weight of outer cylinder was reduced by up to 13 %) while time response is reduced more than 18 times and inductance drop is less than 20 %.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ENGINEERING MECHANICS 2018
ISBN
978-80-86246-88-8
ISSN
1805-8256
e-ISSN
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Number of pages
4
Pages from-to
905-908
Publisher name
Institute of theoretical and applied mechanics of the Czech academy of Sciences
Place of publication
Praha
Event location
Svratka
Event date
May 14, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000465489800226