Effectiveness of Nonlinear Energy Sinks in the Suppression of Stall-Induced Aeroelastic Instabilities
Artykuł w czasopiśmie
MNiSW
40
Lista 2024
| Status: | |
| Autorzy: | Bhanav S. S., Venkatramani J., Malaji Pradeep V., Litak Grzegorz |
| Dyscypliny: | |
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| Rok wydania: | 2025 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 3 |
| Wolumen/Tom: | 13 |
| Numer artykułu: | 220 |
| Strony: | 1 - 19 |
| Impact Factor: | 2,1 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | Dr. J. Venkatramani gratefully acknowledges with gratitude the funding received from the Science and Engineering Research Board (SERB), India - core grant (CRG/2022/001609) and the institute seed grant received from Indian Institute of Information Technology Design and Manufacturing, Kancheepuram (File no IIITDM/ ISG/2024/ME/02).Prof. G. Litak was supported by National Science Centre, Poland, under the project SHENG-2, No. 2021/40/Q/ST8/ 00362. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| Background Nonlinear Energy Sinks (NESs) have been successfully deployed to control hazardous stall-induced aeroe- lastic responses. Purpose This study investigates the effectiveness of NES, its parameters and location on airfoil for optimal suppression of stall flutter oscillations. Methods A mathematical model encompassing a pitch-plunge airfoil is considered. A NES is attached to the chord of the airfoil. Through succinct numerical simulations, we demonstrate the role of NES in possibly reducing the oscillatory instabilities that arise due to a dynamic stall behaviour. Results We show that amplitude reductions of 30% are possible upon suitably tuning the NES in both deterministic and stochastic flow cases. Heuristically extending the scope of study to multi-NES resulted in minimal improvement in the suppression of oscillatory instabilities. Conclusion This is possibly the first study to successfully demonstrate amplitude reductions in stall-induced aeroelastic instabilities using NESs. We believe that the findings presented in this study may augment safer operating conditions for aeroelastic systems fraught with dynamic stall-driven instabilities. |
