A novel methodology for a time-delayed controller to prevent nonlinear system oscillations
The paper investigates the nonlinear transversal vibrations of a cantilever beam structure in the primary resonance case. A time-delayed position-velocity control is suggested to reduce the nonlinear vibrations of the structure under consideration. A non-perturbative method (NPM) is used to get an e...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2024-03-01
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| Series: | Journal of Low Frequency Noise, Vibration and Active Control |
| Online Access: | https://doi.org/10.1177/14613484231195276 |
| _version_ | 1797304050052497408 |
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| author | Galal M Moatimid TS Amer YY Ellabban |
| author_facet | Galal M Moatimid TS Amer YY Ellabban |
| author_sort | Galal M Moatimid |
| collection | DOAJ |
| description | The paper investigates the nonlinear transversal vibrations of a cantilever beam structure in the primary resonance case. A time-delayed position-velocity control is suggested to reduce the nonlinear vibrations of the structure under consideration. A non-perturbative method (NPM) is used to get an equivalent analogous linear differential equation (DE) to the original nonlinear one. For the benefit of the readers, a comprehensive description of the NPM method is provided. The theoretical findings are validated through a numerical comparison carried out by employed the Mathematica Software. Both the numerical solutions and the theoretical outcomes showed excellent agreement. As well-known, all classic perturbation techniques use Taylor expansion, when the restoring forces are present, to expand these forces and therefore lessen the difficulty of the given problem. Under the NPM, this weakness is no longer present. Furthermore, one may examine the stability examination of the issue with the NPM something that was not possible with prior traditional techniques. The controlled linear equivalent model is examined using the multiple-scales homotopy method. The amplitude-phase modulation equations which control the dynamics of the structure at the various resonance circumstances are established. The loop-delay stability diagrams are analyzed. It is looked at how the different controller parameters impact the oscillation behaviors of the system. The obtained theoretical outcomes showed that the loop delay has an important impact on the effectiveness of the control. Therefore, the ideal loop-delay values are given and used to develop the enactment of the organized control. The completed analytical results are also numerically validated, to reveal their good correlation with the achieved theoretical new results. |
| first_indexed | 2024-03-08T00:03:49Z |
| format | Article |
| id | doaj.art-23ed3ce896ef4958ad237c16510f6d71 |
| institution | Directory Open Access Journal |
| issn | 1461-3484 2048-4046 |
| language | English |
| last_indexed | 2024-03-08T00:03:49Z |
| publishDate | 2024-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Journal of Low Frequency Noise, Vibration and Active Control |
| spelling | doaj.art-23ed3ce896ef4958ad237c16510f6d712024-02-17T11:05:24ZengSAGE PublishingJournal of Low Frequency Noise, Vibration and Active Control1461-34842048-40462024-03-014310.1177/14613484231195276A novel methodology for a time-delayed controller to prevent nonlinear system oscillationsGalal M MoatimidTS AmerYY EllabbanThe paper investigates the nonlinear transversal vibrations of a cantilever beam structure in the primary resonance case. A time-delayed position-velocity control is suggested to reduce the nonlinear vibrations of the structure under consideration. A non-perturbative method (NPM) is used to get an equivalent analogous linear differential equation (DE) to the original nonlinear one. For the benefit of the readers, a comprehensive description of the NPM method is provided. The theoretical findings are validated through a numerical comparison carried out by employed the Mathematica Software. Both the numerical solutions and the theoretical outcomes showed excellent agreement. As well-known, all classic perturbation techniques use Taylor expansion, when the restoring forces are present, to expand these forces and therefore lessen the difficulty of the given problem. Under the NPM, this weakness is no longer present. Furthermore, one may examine the stability examination of the issue with the NPM something that was not possible with prior traditional techniques. The controlled linear equivalent model is examined using the multiple-scales homotopy method. The amplitude-phase modulation equations which control the dynamics of the structure at the various resonance circumstances are established. The loop-delay stability diagrams are analyzed. It is looked at how the different controller parameters impact the oscillation behaviors of the system. The obtained theoretical outcomes showed that the loop delay has an important impact on the effectiveness of the control. Therefore, the ideal loop-delay values are given and used to develop the enactment of the organized control. The completed analytical results are also numerically validated, to reveal their good correlation with the achieved theoretical new results.https://doi.org/10.1177/14613484231195276 |
| spellingShingle | Galal M Moatimid TS Amer YY Ellabban A novel methodology for a time-delayed controller to prevent nonlinear system oscillations Journal of Low Frequency Noise, Vibration and Active Control |
| title | A novel methodology for a time-delayed controller to prevent nonlinear system oscillations |
| title_full | A novel methodology for a time-delayed controller to prevent nonlinear system oscillations |
| title_fullStr | A novel methodology for a time-delayed controller to prevent nonlinear system oscillations |
| title_full_unstemmed | A novel methodology for a time-delayed controller to prevent nonlinear system oscillations |
| title_short | A novel methodology for a time-delayed controller to prevent nonlinear system oscillations |
| title_sort | novel methodology for a time delayed controller to prevent nonlinear system oscillations |
| url | https://doi.org/10.1177/14613484231195276 |
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