Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical Approximations
In this paper, some novel analytical and numerical techniques are introduced for solving and analyzing nonlinear second-order ordinary differential equations (ODEs) that are associated to some strongly nonlinear oscillators such as a quadratically damped pendulum equation. Two different analytical a...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Complexity |
| Online Access: | http://dx.doi.org/10.1155/2022/7803798 |
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| author | Alvaro H. Salas Wedad Albalawi M. R. Alharthi S. A. El-Tantawy |
| author_facet | Alvaro H. Salas Wedad Albalawi M. R. Alharthi S. A. El-Tantawy |
| author_sort | Alvaro H. Salas |
| collection | DOAJ |
| description | In this paper, some novel analytical and numerical techniques are introduced for solving and analyzing nonlinear second-order ordinary differential equations (ODEs) that are associated to some strongly nonlinear oscillators such as a quadratically damped pendulum equation. Two different analytical approximations are obtained: for the first approximation, the ansatz method with the help of Chebyshev approximate polynomial is employed to derive an approximation in the form of trigonometric functions. For the second analytical approximation, a novel hybrid homotopy with Krylov–Bogoliubov–Mitropolsky method (HKBMM) is introduced for the first time for analyzing the evolution equation. For the numerical approximation, both the finite difference method (FDM) and Galerkin method (GM) are presented for analyzing the strong nonlinear quadratically damped pendulum equation that arises in real life, such as nonlinear phenomena in plasma physics, engineering, and so on. Several examples are discussed and compared to the Runge–Kutta (RK) numerical approximation to investigate and examine the accuracy of the obtained approximations. Moreover, the accuracy of all obtained approximations is checked by estimating the maximum residual and distance errors. |
| format | Article |
| id | doaj-art-e449633507424135b4236c3e4b36cb07 |
| institution | Kabale University |
| issn | 1099-0526 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Complexity |
| spelling | doaj-art-e449633507424135b4236c3e4b36cb072025-02-03T05:53:27ZengWileyComplexity1099-05262022-01-01202210.1155/2022/7803798Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical ApproximationsAlvaro H. Salas0Wedad Albalawi1M. R. Alharthi2S. A. El-Tantawy3Department of Mathematics and StatisticsDepartment of Mathematical SciencesDepartment of Mathematics and StatisticsDepartment of PhysicsIn this paper, some novel analytical and numerical techniques are introduced for solving and analyzing nonlinear second-order ordinary differential equations (ODEs) that are associated to some strongly nonlinear oscillators such as a quadratically damped pendulum equation. Two different analytical approximations are obtained: for the first approximation, the ansatz method with the help of Chebyshev approximate polynomial is employed to derive an approximation in the form of trigonometric functions. For the second analytical approximation, a novel hybrid homotopy with Krylov–Bogoliubov–Mitropolsky method (HKBMM) is introduced for the first time for analyzing the evolution equation. For the numerical approximation, both the finite difference method (FDM) and Galerkin method (GM) are presented for analyzing the strong nonlinear quadratically damped pendulum equation that arises in real life, such as nonlinear phenomena in plasma physics, engineering, and so on. Several examples are discussed and compared to the Runge–Kutta (RK) numerical approximation to investigate and examine the accuracy of the obtained approximations. Moreover, the accuracy of all obtained approximations is checked by estimating the maximum residual and distance errors.http://dx.doi.org/10.1155/2022/7803798 |
| spellingShingle | Alvaro H. Salas Wedad Albalawi M. R. Alharthi S. A. El-Tantawy Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical Approximations Complexity |
| title | Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical Approximations |
| title_full | Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical Approximations |
| title_fullStr | Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical Approximations |
| title_full_unstemmed | Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical Approximations |
| title_short | Some Novel Solutions to a Quadratically Damped Pendulum Oscillator: Analytical and Numerical Approximations |
| title_sort | some novel solutions to a quadratically damped pendulum oscillator analytical and numerical approximations |
| url | http://dx.doi.org/10.1155/2022/7803798 |
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