The Vibrational Motion of a Dynamical System Using Homotopy Perturbation Technique

• 作者: A. A. Galal Shimaa Elnaggar T. S. Amer
• 来源期刊: 应用数学(英文)
• 学科: 数学
• 关键词: Homotopy Technique Nonlinear Vibration Lagrange’s Equation STABILITY
• 年，卷（期）: 2020,（11）
• 页码范围: 1081-1099
• 页数: 19页
• 分类号: O17

摘要

This paper outlines the vibrational motion of a nonlinear system with a spring of linear stiffness. Homotopy perturbation technique (HPT) is used to obtain the asymptotic solution of the governing equation of motion. The numerical solution of this equation is obtained using the fourth order Runge-Kutta method (RKM). The comparison between both solutions reveals high consistency between them which confirms that, the accuracy of the obtained solution using aforementioned perturbation technique. The time history of the attained solution is represented through some plots to reveal the good effect of the different parameters of the considered system on the motion at any instant. The conditions of the stability of the attained solution are presented and discussed.