Thermo-magnetic effects on nonlinear resonance and dynamic stability of parametrically excited boron nitride nanotubes

IF 4.2 2区工程技术 Q1 MECHANICS

European Journal of Mechanics A-Solids Pub Date : 2025-10-01 DOI:10.1016/j.euromechsol.2025.105902

Lotfi Ben Said , Nashmi H. Alrasheedi , Ali B.M. Ali , Mohamed Shaban , Abdullah Abed Hussein , Husam Rajab , Wajdi Rajhi , Khalil Hajlaoui

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Abstract

This study investigates the nonlocal nonlinear parametric resonance response of a single-walled boron nitride nanotube (SWBNNT) subjected to parametric excitation incorporating geometric nonlinearity, viscoelastic damping, and the coupled influence of axial thermal and magnetic fields. An analytical solution is developed using the method of multiple scales (MMS) to investigate the influence of parametric excitation amplitude, magnetic field strength, length-to-diameter ratio, viscoelastic damping, mode number and different standard boundary conditions on primary resonance stability. Results reveal that the bifurcation gaps increase with increasing parametric excitation but narrow with greater magnetic field intensity and length-to-diameter ratio. Additionally, the principal parametric resonance response displays a prominent backwards-jumping phenomenon, strongly influenced by excitation amplitude and structural geometry.

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热磁效应对参数激发氮化硼纳米管非线性共振和动态稳定性的影响

本文研究了单壁氮化硼纳米管（SWBNNT）在几何非线性、粘弹性阻尼和轴向热磁场耦合作用下的非局部非线性参数共振响应。采用多尺度法（MMS）建立了解析解，研究了参数激励幅值、磁场强度、长径比、粘弹性阻尼、模态数和不同标准边界条件对主共振稳定性的影响。结果表明，分岔间隙随着参数激励的增加而增大，但随着磁场强度和长径比的增大而缩小。此外，主参数共振响应表现出明显的后跳现象，受激励幅度和结构几何形状的强烈影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Mechanics A-Solids 物理-力学

CiteScore

7.00

自引率

7.30%

发文量

275

审稿时长

48 days

期刊介绍： The European Journal of Mechanics endash; A/Solids continues to publish articles in English in all areas of Solid Mechanics from the physical and mathematical basis to materials engineering, technological applications and methods of modern computational mechanics, both pure and applied research.