Nanomechanical sensors based on elastically supported double-walled carbon nanotubes

作者: Keivan Kiani

DOI: 10.1016/J.AMC.2015.07.114

关键词: MechanicsFlexural strengthBeam (structure)Rayleigh scatteringNanosensorVibrationCarbon nanotubeDiscretizationClassical mechanicsBoundary value problemMaterials science

摘要: Study of elastically supported DWCNTs as nanomechanical sensors is concern.Nonlocal Rayleigh, Timoshenko, and higher-order beam models are employed.RKPM used for the discretization unknown fields proposed models.The role various factors on frequency shift ratio (FSR) examined.FSRs under different boundary conditions studied in some details. Carbon nanotubes anticipated to have potential applications nanosensor technology; however, their usage has not been thoroughly revealed. In this article, we seeking appropriate numerical bridge such a scientific gap double-walled carbon (DWCNTs) sensors. Some nonlocal developed exploring vibration performance embedded an elastic matrix due arbitrarily added nanoparticles. The continuum theory Eringen employed, governing equations each model constructed by considering lateral rotary inertial effects attached Since examining problem wide range particular interest, effective meshless method exploited. For models, comparison study along with convergence check carried out reasonably good agreements achieved. key factor mechanical sensing nanoparticles alteration natural flexural frequencies. A fairly conclusive then conducted determine influences crucial DWCNTs. obtained results explain mass nanosensors diverse conditions.

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