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scale-dependent dynamic behavior of nanowire-based sensor in accelerating field
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نویسنده
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yekrangi alireza ,yaghobi mojtaba ,riazian mehran ,koochi ali
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منبع
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journal of applied and computational mechanics - 2019 - دوره : 5 - شماره : 2 - صفحه:486 -497
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چکیده
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The accelerating fields (e. g. centrifugal acceleration and constant acceleration) can change the physical performance of nano-sensors significantly. herein, a new size-dependent model is developed to investigate the scale-dependent dynamic behavior of nanowire-fabricated sensor operated in an accelerating field. the scaledependent equation of motion is developed by employing a consolidation of the strain gradient elasticity (sge) and the gurtin–murdoch theory (gmt). a semi-analytical solution is extracted for calculating the stability parameters. effects of different phenomena including centrifugal force, microstructure dependency, surface layer, length-scaleparameter, dispersion forces, squeezed film damping on the dynamic stability parameters are demonstrated.
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کلیدواژه
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nanowire ,accelerating field ,strain gradient elasticity ,dynamic instability ,surface energies
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آدرس
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islamic azad university, ayatollah amoli branch, mechanical engineering group, ایران, islamic azad university, ayatollah amoli branch, mechanical engineering group, ایران, islamic azad university, tonekabon branch, mechanical engineering group, ایران, university of torbat heydarieh, department of mechanical engineering, ایران
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پست الکترونیکی
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a.koochi@torbath.ac.ir
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Authors
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