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Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory

Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory

The thermo-elastic damping is a dominant source of internal damping in microelectromechanical systems (MEMS) and nano-electromechanical systems (NEMS). The internal damping cannot neither be controlled nor minimized unless either mechanical or geometrical properties are changed. Therefore, a novel F...

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Main Authors: Rahimi, Z., Rashahmadi, S.
Format: Article
Language:English
Published: Інститут механіки ім. С.П. Тимошенка НАН України 2017
Series:Прикладная механика
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/174142
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spelling irk-123456789-1741422021-01-06T01:26:05Z Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory Rahimi, Z. Rashahmadi, S. The thermo-elastic damping is a dominant source of internal damping in microelectromechanical systems (MEMS) and nano-electromechanical systems (NEMS). The internal damping cannot neither be controlled nor minimized unless either mechanical or geometrical properties are changed. Therefore, a novel FGMNEM system with a controllable thermo-elastic damping of axial vibration based on Eringen nonlocal theory is considered. The effects of different parameter like the gradient index, nonlocal parameter, length of nanobeam and ambient temperature on the thermo-elastic damping quality factor are presented. It is shown that the thermo-elastic damping can be controlled by changing different parameter. Термопружне демпфування є головним джерелом внутрішнього демпфування в мікроелектромеханічних і наноелектромеханічних системах. Внутрішнє демпфування не може бути ні кероване, ні мінімізоване, поки механічні і геометричні властивості матеріалу не є змінними. Тому розглянуто осьові коливання балки з нового матеріалу – функціонально градієнтного матеріалу з врахуванням наноелектромеханічних явищ – в рамках нелокальної теорії Ерінгена. Розглянуто вплив різних параметрів – показника градієнтості, параметрів нелокальності, довжини нанобалки, температури навколишнього середовища – на коефіцієнт термопружного демпфування. Показано, що термопружне демпфування може бути кероване зміною цих параметрів. 2017 Article Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory / Z. Rahimi, S. Rashahmadi // Прикладная механика. — 2017. — Т. 53, № 6. — С. 133-141. — Бібліогр.: 23 назв. — англ 0032-8243 http://dspace.nbuv.gov.ua/handle/123456789/174142 en Прикладная механика Інститут механіки ім. С.П. Тимошенка НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description The thermo-elastic damping is a dominant source of internal damping in microelectromechanical systems (MEMS) and nano-electromechanical systems (NEMS). The internal damping cannot neither be controlled nor minimized unless either mechanical or geometrical properties are changed. Therefore, a novel FGMNEM system with a controllable thermo-elastic damping of axial vibration based on Eringen nonlocal theory is considered. The effects of different parameter like the gradient index, nonlocal parameter, length of nanobeam and ambient temperature on the thermo-elastic damping quality factor are presented. It is shown that the thermo-elastic damping can be controlled by changing different parameter.
format Article
author Rahimi, Z.
Rashahmadi, S.
spellingShingle Rahimi, Z.
Rashahmadi, S.
Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory
Прикладная механика
author_facet Rahimi, Z.
Rashahmadi, S.
author_sort Rahimi, Z.
title Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory
title_short Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory
title_full Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory
title_fullStr Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory
title_full_unstemmed Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory
title_sort thermoelastic damping in fgm nano-electromechanical system in axial vibration based on eringen nonlocal theory
publisher Інститут механіки ім. С.П. Тимошенка НАН України
publishDate 2017
url http://dspace.nbuv.gov.ua/handle/123456789/174142
citation_txt Thermoelastic damping in FGM nano-electromechanical system in axial vibration based on Eringen nonlocal theory / Z. Rahimi, S. Rashahmadi // Прикладная механика. — 2017. — Т. 53, № 6. — С. 133-141. — Бібліогр.: 23 назв. — англ
series Прикладная механика
work_keys_str_mv AT rahimiz thermoelasticdampinginfgmnanoelectromechanicalsysteminaxialvibrationbasedoneringennonlocaltheory
AT rashahmadis thermoelasticdampinginfgmnanoelectromechanicalsysteminaxialvibrationbasedoneringennonlocaltheory
first_indexed 2023-10-18T22:35:43Z
last_indexed 2023-10-18T22:35:43Z
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