Recently, a modified homotopy perturbation method with an auxiliary term was proposed for obtaining an analytical approximate solution of a nonlinear equation. The auxiliary term involves a tuning parameter that gives the modified homotopy perturbation method an additional degree-of-freedom to construct the approximate solution. In this paper, we present a systematic approach for choosing the auxiliary parameter and furthermore show that an optimal value of the parameter yields significant improvement in the approximate solution compared to the standard homotopy perturbation method. We consider the nonlinear oscillator with a discontinuity to illustrate the proposed approach.
The modified homotopy perturbation method with an auxiliary term for the nonlinear oscillator with discontinuity
Syed Ahmed Pasha,Yasir Nawaz,M. Arif
Published 2018 in Journal of Low Frequency Noise Vibration and Active Control
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- Publication year
2018
- Venue
Journal of Low Frequency Noise Vibration and Active Control
- Publication date
2018-12-28
- Fields of study
Mathematics, Physics, Engineering
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