Investigation of the autogyro main rotor blade failure after flight tests
Artykuł w czasopiśmie
MNiSW
100
Lista 2024
| Status: | |
| Autorzy: | Czyż Zbigniew, Karpiński Paweł, Szczepaniak Robert, Sapiński Przemysław, Depczyński Wojciech, Bańkowski Damian, Skiba Krzysztof |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2025 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | Pt C |
| Wolumen/Tom: | 182 |
| Numer artykułu: | 110136 |
| Strony: | 1 - 19 |
| Impact Factor: | 5,7 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 18 września 2025 |
| Abstrakty: | angielski |
| The structural integrity of main rotor blades is critical for the safety and reliability of rotorcraft and hybrid unmanned aerial vehicles (UAVs). Redundant propulsion systems enhance flight reliability by enabling continued operation or safe landing following a partial failure. The XGyro aircraft exemplifies such a system, combining multirotor propulsion with autorotation from a gyroplane. This study investigates the effect of localized impact damage on the tensile strength of a carbon fiber composite rotor blade from a hybrid UAV after a controlled in-flight collision with a rear propeller. The damaged blade was compared with an undamaged reference blade of identical design and material composition. Non-destructive evaluation revealed surface cracking, delamination, and internal spar damage, while destructive tensile testing showed that the damaged blade maintained a maximum load capacity 36 % higher than that of the undamaged reference. Strain mapping confirmed that the highest stress concentrations occurred in the blade attachment zone rather than in the impact area, and no further damage propagation was observed during testing. These results demonstrate that certain localized impact damages may not critically reduce the residual tensile capacity of rotor blades, provided that attachment integrity is pre- served. The findings contribute to damage tolerance assessment methodologies for composite |
