- Tytuł:
- Insight into Damping Sources in Turbines
- Autorzy:
- Moneta, Grzegorz
- Powiązania:
- https://bibliotekanauki.pl/articles/24201180.pdf
- Data publikacji:
- 2022
- Wydawca:
- Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
- Tematy:
-
vibrations
blade
gas turbine
turbine engine
damping
FEM
Finite Element Method
transient analysis
explicit
friction damping
under-platform damper
optimization
sensitivity analysis - Opis:
- Blade vibrations in aircraft engines are a significant challenge that must be overcome during the design and development of modern turbine engines. Vibrations lead to cyclic displacements and result in alternating stress and strain in undesired environments (high temperatures, erosion, corrosion of the surface, etc.). Under resonance conditions, stress amplitudes can increase and exceed their safety limits, and in extreme cases, can lead to engine failure. One method to reduce resonance vibrations is to increase damping in the turbine assembly. This paper presents and describes vibration damping sources in the turbine, including aerodynamic, material, and friction damping. Additionally, typical damping values for each damping component are presented and compared.
- Źródło:
-
Fatigue of Aircraft Structures; 2022, 14; 69--82
2081-7738
2300-7591 - Pojawia się w:
- Fatigue of Aircraft Structures
- Dostawca treści:
- Biblioteka Nauki
Artykuł