The mathematical model for analysis of attenuation of nonlinear vibration of rigid rotors influenced by electromagnetic effects
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F19%3A00497805" target="_blank" >RIV/61388998:_____/19:00497805 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27230/19:10240255 RIV/61989100:27740/19:10240255
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0022460X18307600?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022460X18307600?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jsv.2018.11.008" target="_blank" >10.1016/j.jsv.2018.11.008</a>
Alternative languages
Result language
angličtina
Original language name
The mathematical model for analysis of attenuation of nonlinear vibration of rigid rotors influenced by electromagnetic effects
Original language description
The vibration of rotors supported by rolling element bearings mounted in controllable squeeze film magnetorheological dampers depends of a complex interaction between mutually coupled mechanical, hydraulic, magnetic and electric phenomena. In the developed mathematical model of the magnetorheological damper the magnetorheological oil is represented by a bilinear material, the yielding shear stress of which is a function of magnetic induction, and the damper body by a set of meridian segments. Each segment is considered to be a divided core of an electromagnet with the gap filled with magnetorheological oil. The pressure distribution in the lubricating film is governed by the Reynolds equation, adapted to bilinear material. The dependence of the yielding shear stress of magnetic induction is approximated by a power function. The current in the electric circuit is determined from the equation of the voltage equilibrium. The presented mathematical model of the magnetorheological squeeze film damper was implemented in the computational procedures for transient dynamical analysis of rotor systems. The goal of the investigations was to learn more about the nonlinear effects, time delays, and complex influences of the electromagnetic phenomena occurring in magnetorheological damping devices used in the vibration attenuation of rotors. The development of the enhanced mathematical model of a magnetorheological squeeze film damper and extending knowledge upon the influence of electromagnetic phenomena in reducing lateral vibration of rigid rotors are the main contributions of this article.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/LQ1602" target="_blank" >LQ1602: IT4Innovations excellence in science</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Sound and Vibration
ISSN
0022-460X
e-ISSN
—
Volume of the periodical
443
Issue of the periodical within the volume
March
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
168-177
UT code for WoS article
000455674200011
EID of the result in the Scopus database
2-s2.0-85059327519