New effectual configuration of bistable nonlinear energy sink
Abstract The study presents a new configuration of nonlinear energy sinks (NESs) which is adaptable to function as either stable or bistable NES. The proposed NES is based on the spring-loaded inverted pendulum (SLIP) in which a torsional stiffness element couples the SLIP to the linear oscillator (...
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Nature Portfolio
2024-11-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-77932-3 |
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| author | Rafath Abdul Nasar Mohammad A. AL-Shudeifat |
| author_facet | Rafath Abdul Nasar Mohammad A. AL-Shudeifat |
| author_sort | Rafath Abdul Nasar |
| collection | DOAJ |
| description | Abstract The study presents a new configuration of nonlinear energy sinks (NESs) which is adaptable to function as either stable or bistable NES. The proposed NES is based on the spring-loaded inverted pendulum (SLIP) in which a torsional stiffness element couples the SLIP to the linear oscillator (LO). The bistable configuration provides a critically stable position when the SLIP is vertically aligned with respect to the LO motion. At this critical stability position, the SLIP NES incorporates pre-stored potential energy which generates the bistability characteristics resembling that of a stiffness-based bistable NES. The equations of motion of the coupled LO with the SLIP NES are derived based on the Euler–Lagrange method in non-dimensional form. The parameters of the considered SLIP NESs are optimized to achieve an optimum energy absorption from the LO. The proposed B-SLIP NES is also applied to suppress seismic ground motion and forced torsional vibrations. The obtained numerical simulation and analytical response results verify the robustness of the B-SLIP NES in vibration suppression performance compared with the tuned mass damper and the cubic stiffness NES. |
| format | Article |
| id | doaj-art-a342f56ce34248e3bacb33aab5659cf0 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-a342f56ce34248e3bacb33aab5659cf02024-11-10T12:22:29ZengNature PortfolioScientific Reports2045-23222024-11-0114112010.1038/s41598-024-77932-3New effectual configuration of bistable nonlinear energy sinkRafath Abdul Nasar0Mohammad A. AL-Shudeifat1Khalifa University of Science and TechnologyKhalifa University of Science and TechnologyAbstract The study presents a new configuration of nonlinear energy sinks (NESs) which is adaptable to function as either stable or bistable NES. The proposed NES is based on the spring-loaded inverted pendulum (SLIP) in which a torsional stiffness element couples the SLIP to the linear oscillator (LO). The bistable configuration provides a critically stable position when the SLIP is vertically aligned with respect to the LO motion. At this critical stability position, the SLIP NES incorporates pre-stored potential energy which generates the bistability characteristics resembling that of a stiffness-based bistable NES. The equations of motion of the coupled LO with the SLIP NES are derived based on the Euler–Lagrange method in non-dimensional form. The parameters of the considered SLIP NESs are optimized to achieve an optimum energy absorption from the LO. The proposed B-SLIP NES is also applied to suppress seismic ground motion and forced torsional vibrations. The obtained numerical simulation and analytical response results verify the robustness of the B-SLIP NES in vibration suppression performance compared with the tuned mass damper and the cubic stiffness NES.https://doi.org/10.1038/s41598-024-77932-3Nonlinear energy sinkSeismic ground motionTorsional vibrationNonlinear vibration absorberTuned mass damper |
| spellingShingle | Rafath Abdul Nasar Mohammad A. AL-Shudeifat New effectual configuration of bistable nonlinear energy sink Scientific Reports Nonlinear energy sink Seismic ground motion Torsional vibration Nonlinear vibration absorber Tuned mass damper |
| title | New effectual configuration of bistable nonlinear energy sink |
| title_full | New effectual configuration of bistable nonlinear energy sink |
| title_fullStr | New effectual configuration of bistable nonlinear energy sink |
| title_full_unstemmed | New effectual configuration of bistable nonlinear energy sink |
| title_short | New effectual configuration of bistable nonlinear energy sink |
| title_sort | new effectual configuration of bistable nonlinear energy sink |
| topic | Nonlinear energy sink Seismic ground motion Torsional vibration Nonlinear vibration absorber Tuned mass damper |
| url | https://doi.org/10.1038/s41598-024-77932-3 |
| work_keys_str_mv | AT rafathabdulnasar neweffectualconfigurationofbistablenonlinearenergysink AT mohammadaalshudeifat neweffectualconfigurationofbistablenonlinearenergysink |