Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak Foundation
This study was devoted to an investigation on the dynamics of double-walled carbon nanotubes (DWCNTs) under the influence of Winkler–Pasternak foundation near the primary resonance. Two Euler–Bernoulli beams embedded on nonlinear foundation, interacting through van der Waals forces, subjected to mec...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/23/8599 |
| _version_ | 1797462789711724544 |
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| author | Nicolae Herisanu Bogdan Marinca Vasile Marinca |
| author_facet | Nicolae Herisanu Bogdan Marinca Vasile Marinca |
| author_sort | Nicolae Herisanu |
| collection | DOAJ |
| description | This study was devoted to an investigation on the dynamics of double-walled carbon nanotubes (DWCNTs) under the influence of Winkler–Pasternak foundation near the primary resonance. Two Euler–Bernoulli beams embedded on nonlinear foundation, interacting through van der Waals forces, subjected to mechanical impact are considered. By means of Hamilton’s principle, Eringen’s nonlocal elastic theory, and taking into account the moving nanoparticles, the Galerkin–Bubnov method is applied and accordingly, governing partial differential equations are reduced to two differential equations with variable coefficients. The nonlinear damped and forced vibration is studied using the optimal auxiliary functions method (OAFM). An explicit and very accurate analytical solution is obtained by means of OAFM without considering simplifying hypotheses. An accurate analysis is for the first time reported considering the cumulated effects of nonlinearities simultaneously induced by the Winkler–Pasternak foundation, the curvature of beams and van der Waals force, and also the effect of discontinuities marked by the presence of the Dirac function. Finally, a stability analysis of the considered model is developed by means of the homotopy perturbation method (HPM) using the condition of existence of the two frequencies. It was shown that an increasing of some constitutive parameters substantially reduces the area of stability, all these being of much help in guiding the design of advanced nanoelectromechanical devices, in which nanotubes act as basic elements. |
| first_indexed | 2024-03-09T17:41:29Z |
| format | Article |
| id | doaj.art-3d6c2c2a95254c00907a6463414faa6f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T17:41:29Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3d6c2c2a95254c00907a6463414faa6f2023-11-24T11:31:00ZengMDPI AGMaterials1996-19442022-12-011523859910.3390/ma15238599Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak FoundationNicolae Herisanu0Bogdan Marinca1Vasile Marinca2Department of Mechanics and Strength of Materials, University Politehnica Timisoara, 300222 Timisoara, RomaniaDepartment of Applied Electronics, University Politehnica Timisoara, 300223 Timisoara, RomaniaDepartment of Mechanics and Strength of Materials, University Politehnica Timisoara, 300222 Timisoara, RomaniaThis study was devoted to an investigation on the dynamics of double-walled carbon nanotubes (DWCNTs) under the influence of Winkler–Pasternak foundation near the primary resonance. Two Euler–Bernoulli beams embedded on nonlinear foundation, interacting through van der Waals forces, subjected to mechanical impact are considered. By means of Hamilton’s principle, Eringen’s nonlocal elastic theory, and taking into account the moving nanoparticles, the Galerkin–Bubnov method is applied and accordingly, governing partial differential equations are reduced to two differential equations with variable coefficients. The nonlinear damped and forced vibration is studied using the optimal auxiliary functions method (OAFM). An explicit and very accurate analytical solution is obtained by means of OAFM without considering simplifying hypotheses. An accurate analysis is for the first time reported considering the cumulated effects of nonlinearities simultaneously induced by the Winkler–Pasternak foundation, the curvature of beams and van der Waals force, and also the effect of discontinuities marked by the presence of the Dirac function. Finally, a stability analysis of the considered model is developed by means of the homotopy perturbation method (HPM) using the condition of existence of the two frequencies. It was shown that an increasing of some constitutive parameters substantially reduces the area of stability, all these being of much help in guiding the design of advanced nanoelectromechanical devices, in which nanotubes act as basic elements.https://www.mdpi.com/1996-1944/15/23/8599double-walled carbon nanotubesmechanical impactoptimal auxiliary functions methodapproximate solutionsstabilityWinkler–Pasternak foundation |
| spellingShingle | Nicolae Herisanu Bogdan Marinca Vasile Marinca Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak Foundation Materials double-walled carbon nanotubes mechanical impact optimal auxiliary functions method approximate solutions stability Winkler–Pasternak foundation |
| title | Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak Foundation |
| title_full | Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak Foundation |
| title_fullStr | Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak Foundation |
| title_full_unstemmed | Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak Foundation |
| title_short | Nonlinear Vibration of Double-Walled Carbon Nanotubes Subjected to Mechanical Impact and Embedded on Winkler–Pasternak Foundation |
| title_sort | nonlinear vibration of double walled carbon nanotubes subjected to mechanical impact and embedded on winkler pasternak foundation |
| topic | double-walled carbon nanotubes mechanical impact optimal auxiliary functions method approximate solutions stability Winkler–Pasternak foundation |
| url | https://www.mdpi.com/1996-1944/15/23/8599 |
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