•  English
    • Persian
    • English
  •   Login
  • Ferdowsi University of Mashhad
  • |
  • Information Center and Central Library
    • Persian
    • English
  • Home
  • Source Types
    • Journal Paper
    • Ebook
    • Conference Paper
    • Standard
    • Protocol
    • Thesis
  • Use Help
View Item 
  •   FUM Digital Library
  • Fum
  • Articles
  • ProfDoc
  • View Item
  •   FUM Digital Library
  • Fum
  • Articles
  • ProfDoc
  • View Item
  • All Fields
  • Title
  • Author
  • Year
  • Publisher
  • Subject
  • Publication Title
  • ISSN
  • DOI
  • ISBN
Advanced Search
JavaScript is disabled for your browser. Some features of this site may not work without it.

Vibration attenuation of rotor-bearing systems using smart electro-rheological elastomer supports

Author:
محمدعبدالکاظم ناصر الحسین
,
حمید معین فرد
,
جلیل رضائی پژند
,
mohammed alhussein
,
Hamid Moeenfard
,
Jalil Rezaee Pazhand
Year
: 2019
Abstract: Nowadays, capability of safe operation suiciently away from the critical speeds is one of the most important design requirements of rotating machineries. The focus of this paper is the application of smart electro-rheological -ER- elastomers to
rotor dynamics ield to reduce the vibration level of a rotor system. A Jefcott rotor, supported via two bearings at both ends
augmented with ER elastomers, is considered. A inite element approach, based on the Rayleigh beam theory, is used to
model the dynamics of the system, and the proposed model accounts for the rotary inertia, gyroscopic efects and shaft’s
internal damping. The ER elastomer supports are simulated with four-parameter viscoelastic model. The simulation results
reveal that the use of ER elastomer in the conventional bearing supports leads to downshifting of the critical speeds and a
considerable reduction in its corresponding vibration amplitude. Also, the stability limit speed of the system is improved
by employing the ER elastomer technology. To extend the stability region of the rotor system to higher operating rotational
speeds, a simple on–of control strategy is employed. The proposed control scheme determines the required real-time voltage to be applied at ER elastomers and guarantees low vibration amplitude over a wide frequency range. The novel idea of
using ER elastomers for vibration suppression of rotor systems can be fairly extended to other applications which sufer from
unwanted high amplitude vibrations.
DOI: 10.1007/s40430-019-1748-1
URI: https://libsearch.um.ac.ir:443/fum/handle/fum/3367822
Keyword(s): Rotor dynamics,Electro-rheological elastomer,Smart supports,Finite element method,Vibration suppression,On–of control strategy
Collections :
  • ProfDoc
  • Show Full MetaData Hide Full MetaData
  • Statistics

    Vibration attenuation of rotor-bearing systems using smart electro-rheological elastomer supports

Show full item record

contributor authorمحمدعبدالکاظم ناصر الحسینen
contributor authorحمید معین فردen
contributor authorجلیل رضائی پژندen
contributor authormohammed alhusseinfa
contributor authorHamid Moeenfardfa
contributor authorJalil Rezaee Pazhandfa
date accessioned2020-06-06T13:45:26Z
date available2020-06-06T13:45:26Z
date issued2019
identifier urihttps://libsearch.um.ac.ir:443/fum/handle/fum/3367822
description abstractNowadays, capability of safe operation suiciently away from the critical speeds is one of the most important design requirements of rotating machineries. The focus of this paper is the application of smart electro-rheological -ER- elastomers to
rotor dynamics ield to reduce the vibration level of a rotor system. A Jefcott rotor, supported via two bearings at both ends
augmented with ER elastomers, is considered. A inite element approach, based on the Rayleigh beam theory, is used to
model the dynamics of the system, and the proposed model accounts for the rotary inertia, gyroscopic efects and shaft’s
internal damping. The ER elastomer supports are simulated with four-parameter viscoelastic model. The simulation results
reveal that the use of ER elastomer in the conventional bearing supports leads to downshifting of the critical speeds and a
considerable reduction in its corresponding vibration amplitude. Also, the stability limit speed of the system is improved
by employing the ER elastomer technology. To extend the stability region of the rotor system to higher operating rotational
speeds, a simple on–of control strategy is employed. The proposed control scheme determines the required real-time voltage to be applied at ER elastomers and guarantees low vibration amplitude over a wide frequency range. The novel idea of
using ER elastomers for vibration suppression of rotor systems can be fairly extended to other applications which sufer from
unwanted high amplitude vibrations.
en
languageEnglish
titleVibration attenuation of rotor-bearing systems using smart electro-rheological elastomer supportsen
typeJournal Paper
contenttypeExternal Fulltext
subject keywordsRotor dynamicsen
subject keywordsElectro-rheological elastomeren
subject keywordsSmart supportsen
subject keywordsFinite element methoden
subject keywordsVibration suppressionen
subject keywordsOn–of control strategyen
identifier doi10.1007/s40430-019-1748-1
journal titleJournal of the Brazilian Society of Mechanical Sciences and Engineeringfa
journal volume41
journal issue6
identifier linkhttps://profdoc.um.ac.ir/paper-abstract-1074409.html
identifier articleid1074409
  • About Us
نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
DSpace software copyright © 2019-2022  DuraSpace