Abstract

A modified analytical solution of the quadratic non-linear oscillator has been obtained based on an extended iteration method. In this study, truncated Fourier terms have been used in each step of iterations. The frequencies obtained by this technique show good agreement with the exact frequency. The percentage of error between the exact frequency and our third approximate frequency is as low as 0.001%. There is no algebraic complexity in our calculation, which is why this technique is very easy. The results have been compared with the exact and other existing results, which are both convergent and consistent.

Details

Title
On the analytical approximation of the quadratic non-linear oscillator by modified extended iteration method
Author
Ikramul Haque, B M 1 ; Shajia Afrin Flora 1 

 Department of Mathematics, Khulna University of Engineering & Technology, Khulna-9203, Bangladesh 
Pages
527-536
Publication year
2021
Publication date
2021
Publisher
De Gruyter Poland
e-ISSN
24448656
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3191239459
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/4.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.