سال انتشار: ۱۳۹۱

محل انتشار: کنفرانس بین المللی مدل سازی غیر خطی و بهینه سازی

تعداد صفحات: ۷

نویسنده(ها):

Alireza. Khatami – Department of mechanical engineering- Islamic Azad university of Jouybar- Iran
Mohamad. Ramzani – Department of mechanical engineering- Islamic Azad university of Jouybar

چکیده:

In this paper, we use Modified Homotopy Perturbation Method (MHPM) and Variational Iteration Method which are powerful methods with simple procedures, to determine theperiodic solutions for the equation of motion for a mass attached to the center of a stretched elastic wire in dimensionless form which is example of a conservative nonlinear oscillatory system having an irrational elastic force. The solution procedure is simple, and in comparison with exact solution, that the result obtained is valid with high accuracy.