Damped Mathieu Equation with a Modulation Property of the Homotopy Perturbation Method

IF 0.9 Q4 ACOUSTICS
Yusry O. El-Dib, Nasser S. Elgazery
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引用次数: 5

Abstract

In this article, the main objective is to employ the homotopy perturbation method (HPM) as an alternative to classical perturbation methods for solving nonlinear equations having periodic coefficients. As a simple example, the nonlinear damping Mathieu equation has been investigated. In this investigation, two nonlinear solvability conditions are imposed. One of them was imposed in the first-order homotopy perturbation and used to study the stability behavior at resonance and non-resonance cases. The next level of the perturbation approaches another solvability condition and is applied to obtain the unknowns become clear in the solution for the firstorder solvability condition. The approach assumed here is so significant for solving many parametric nonlinear equations that arise within the engineering and nonlinear science.
具有同伦摄动方法调制性质的阻尼Mathieu方程
在本文中,主要目的是采用同伦摄动方法(HPM)作为求解具有周期系数的非线性方程的经典摄动方法的替代方法。作为一个简单的例子,研究了非线性阻尼Mathieu方程。在此研究中,施加了两个非线性可解条件。其中一个是在一阶同伦摄动中施加的,用于研究共振和非共振情况下的稳定性行为。下一级摄动接近另一个可解条件,并用于获得在第一级可解条件下解中变得清晰的未知数。这里假设的方法对于解决工程和非线性科学中出现的许多参数非线性方程是如此重要。
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
Sound and Vibration
Sound and Vibration 物理-工程:机械
CiteScore
1.50
自引率
33.30%
发文量
33
审稿时长
>12 weeks
期刊介绍: Sound & Vibration is a journal intended for individuals with broad-based interests in noise and vibration, dynamic measurements, structural analysis, computer-aided engineering, machinery reliability, and dynamic testing. The journal strives to publish referred papers reflecting the interests of research and practical engineering on any aspects of sound and vibration. Of particular interest are papers that report analytical, numerical and experimental methods of more relevance to practical applications. Papers are sought that contribute to the following general topics: -broad-based interests in noise and vibration- dynamic measurements- structural analysis- computer-aided engineering- machinery reliability- dynamic testing
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