Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 65, Number 4, February25 2018 , pages 409-413
DOI: https://doi.org/10.12989/sem.2018.65.4.409
 


Nonlinear vibration of oscillatory systems using semi-analytical approach
Mahmoud Bayat, Mahdi Bayat and Iman Pakar

 
Abstract
    In this paper, He\'s Variational Approach (VA) is used to solve high nonlinear vibration equations. The proposed approach leads us to high accurate solution compared with other numerical methods. It has been established that this method works very well for whole range of initial amplitudes. The method is sufficient for both linear and nonlinear engineering problems. The accuracy of this method is shown graphically and the results tabulated and results compared with numerical solutions.
 
Key Words
    variational approach (VA); nonlinear oscillators; Runge-Kutta\'s algorithm
 
Address
Mahmoud Bayat: Young Researchers and Elite Club, Roudehen Branch, Islamic Azad University, Roudehen, Iran
Mahdi Bayat: Department of Civil Engineering, Roudehen Branch, Islamic Azad University, Roudehen, Iran
Iman Pakar: Young Researchers and Elite club, Mashhad Branch, Islamic Azad University, Mashhad, Iran
 

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