Numerical investigation of a fractal oscillator arising from the microbeams-based microelectromechanical system

IF 6.2 2区 工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY
Bin Chen , Junfeng Lu , Lei Chen
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引用次数: 0

Abstract

In this paper, we consider a electrically excited microbeams-based microelectromechanical system (MEMS) on a fractal time space. This MEMS problem can be modelled by a fractal nonlinear oscillator. A numerical approach by combining the fractal complex transformation and the spreading residue harmonic balance method is proposed for finding the approximations to the fractal vibration system. The approximated solutions and frequencies with high accuracy are given, and compared with the approximations by the existing methods such as Runge–Kutta method, energy balance method and Li-He’s modified homotopy perturbation method. Sensitivity analysis of the approximations concerning different amplitudes and other parameters is also investigated for understanding the numerical behaviour. Numerical results confirm the efficiency of the proposed approach over some existing methods.
基于微束的微机电系统分形振荡器的数值研究
本文研究了分形时间空间上基于电激励微束的微机电系统(MEMS)。这种MEMS问题可以用分形非线性振荡器来建模。提出了一种分形复变换与扩展剩余谐波平衡法相结合的求分形振动系统近似的数值方法。给出了高精度的近似解和频率,并与龙格-库塔法、能量平衡法和Li-He修正同伦摄动法等现有方法的近似解进行了比较。为了更好地理解数值行为,还研究了不同振幅和其他参数的近似的灵敏度分析。数值结果验证了该方法的有效性。
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来源期刊
alexandria engineering journal
alexandria engineering journal Engineering-General Engineering
CiteScore
11.20
自引率
4.40%
发文量
1015
审稿时长
43 days
期刊介绍: Alexandria Engineering Journal is an international journal devoted to publishing high quality papers in the field of engineering and applied science. Alexandria Engineering Journal is cited in the Engineering Information Services (EIS) and the Chemical Abstracts (CA). The papers published in Alexandria Engineering Journal are grouped into five sections, according to the following classification: • Mechanical, Production, Marine and Textile Engineering • Electrical Engineering, Computer Science and Nuclear Engineering • Civil and Architecture Engineering • Chemical Engineering and Applied Sciences • Environmental Engineering
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