Surface Effect on Vibration of Timoshenko Nanobeam Based on Generalized Differential Quadrature Method and Molecular Dynamics Simulation

Zhao, Demin; Wang, Jiangwei; Xu, Zengyao

doi:10.1007/s41871-021-00117-3

Cited by 2 publications

(1 citation statement)

References 42 publications

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“…The compliance of the flexure hinge can be obtained in accordance with Ref. [15,16]. The flexible stage is constructed using 7075 aluminum alloy, and its mechanical properties are outlined in Table 1.…”

Section: Kinematic Analysismentioning

confidence: 99%

Design and Experimentation of a Novel Separable Vibration-Assisted Stage

Jing

Ren

Ren³

et al. 2023

Nanomanuf Metrol

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In this paper, a novel, separable two-degrees-of-freedom stage with high-precision motion and resolution is proposed for the application of vibration-assisted micromilling. A separable design was realized on the basis of the detachable structure of the platform. Flexible stages with different dimensions and types can be utilized in the devices. A circular-fillet hinge is selected as the flexible unit with a parallel structure to realize output decoupling and reduce the coupling error between the two vibration directions. Analytical modeling is conducted to explore the static and dynamic characteristics of the stage. Results reveal a good agreement with the finite element simulation result. A series of experiments were conducted to assess the static and dynamic performances of the flexible stage, encompassing tests such as amplitude response, motion trajectory, and coupling trajectory. The results of these tests revealed that the designed vibration-assisted system exhibits precise movement capabilities.

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Section: Kinematic Analysismentioning

confidence: 99%

Design and Experimentation of a Novel Separable Vibration-Assisted Stage

Jing

Ren

Ren³

et al. 2023

Nanomanuf Metrol

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Electromechanical response of boron nitride nanosheet reinforced nanocomposite beam: A finite element study

Bansod

Gupta

Gargama

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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The objective of the present study is to investigate the electromechanical response of a piezoelectric boron nitride nanosheet reinforced nanobeam accounting for the surface and the flexoelectric effects using finite element analysis. The finite element model was developed by using the size-based Euler–Bernoulli beam model, modified piezoelectricity theory, and Galerkin's weighted residual method. The boron nitride nanosheet-reinforced nanobeam was loaded with uniformly distributed load and point-loading conditions. Three common boundary conditions for beams such as clamped-free, simply supported, and clamped-clamped have been considered here. The electromechanical behavior of the boron nitride nanosheet reinforced nanobeam has been studied under the pure surface, pure flexoelectric, as well as combined surface and flexoelectric effects. It is observed that the integrated surface and flexoelectric effects are mainly responsible for enhancing the electromechanical performance of the nanobeam. For the thickness H = 20 nm, the maximum deflection of the nanobeam was reduced by ∼50% when both the flexoelectricity and surface effects are combined together for all the support conditions. Moreover, the circular cross-section beam becomes ∼30% stiffer than the rectangular cross-section beam under the integrated effect of surface and flexoelectricity under all loading conditions. Hence, the highly size-dependent surface and flexoelectricity must be explored in the accurate electromechanical behavior of the nanostructure. Furthermore, beam stiffness is highly influenced by the flexoelectric effect irrespective of the beam boundary conditions whereas the surface effect is largely reliant on the beam boundary conditions. This research work provides a methodology to design efficient boron nitride nanosheet reinforced nanostructures that may potentially be applied in the design and development of several nanoelectromechanical systems such as force and pressure-based nanosensors and actuators.

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Surface Effect on Vibration of Timoshenko Nanobeam Based on Generalized Differential Quadrature Method and Molecular Dynamics Simulation

Cited by 2 publications

References 42 publications

Design and Experimentation of a Novel Separable Vibration-Assisted Stage

Design and Experimentation of a Novel Separable Vibration-Assisted Stage

Electromechanical response of boron nitride nanosheet reinforced nanocomposite beam: A finite element study

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