Influence of running conditions on resonant oscillations in fresh-air ventilator blades used in thermal power plants
Apstrakt
High frequency cyclic load of fresh air supply to ventilator blades in thermo energetic facilities can cause the occurrence of fretting in the pressed overlap of ventilator shaft and socket. These loads can be generated by the resonant oscillations of ventilator blades and thermal residual stress due to welding. To prevent running in resonant conditions, the manufacturer of the ventilator defined a procedure of adjusting blades natural frequency in the process of production, as well as period control during exploitation period. The numerical simulations and the accelerations measured and presented in this paper, enabling analysis of mass changes and rotation rate effects on resonant oscillations occurrence in fresh air ventilator.
Ključne reči:
ventilator / resonance / fretting / beddingIzvor:
Thermal Science, 2009, 13, 1, 139-146Izdavač:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
DOI: 10.2298/TSCI0901139T
ISSN: 0354-9836
WoS: 000265687900013
Scopus: 2-s2.0-70350528723
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Tasić, Milan B. AU - Mitrović, Radivoje AU - Popović, Predrag AU - Tasić, Marko M. PY - 2009 UR - https://machinery.mas.bg.ac.rs/handle/123456789/951 AB - High frequency cyclic load of fresh air supply to ventilator blades in thermo energetic facilities can cause the occurrence of fretting in the pressed overlap of ventilator shaft and socket. These loads can be generated by the resonant oscillations of ventilator blades and thermal residual stress due to welding. To prevent running in resonant conditions, the manufacturer of the ventilator defined a procedure of adjusting blades natural frequency in the process of production, as well as period control during exploitation period. The numerical simulations and the accelerations measured and presented in this paper, enabling analysis of mass changes and rotation rate effects on resonant oscillations occurrence in fresh air ventilator. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Influence of running conditions on resonant oscillations in fresh-air ventilator blades used in thermal power plants EP - 146 IS - 1 SP - 139 VL - 13 DO - 10.2298/TSCI0901139T ER -
@article{ author = "Tasić, Milan B. and Mitrović, Radivoje and Popović, Predrag and Tasić, Marko M.", year = "2009", abstract = "High frequency cyclic load of fresh air supply to ventilator blades in thermo energetic facilities can cause the occurrence of fretting in the pressed overlap of ventilator shaft and socket. These loads can be generated by the resonant oscillations of ventilator blades and thermal residual stress due to welding. To prevent running in resonant conditions, the manufacturer of the ventilator defined a procedure of adjusting blades natural frequency in the process of production, as well as period control during exploitation period. The numerical simulations and the accelerations measured and presented in this paper, enabling analysis of mass changes and rotation rate effects on resonant oscillations occurrence in fresh air ventilator.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Influence of running conditions on resonant oscillations in fresh-air ventilator blades used in thermal power plants", pages = "146-139", number = "1", volume = "13", doi = "10.2298/TSCI0901139T" }
Tasić, M. B., Mitrović, R., Popović, P.,& Tasić, M. M.. (2009). Influence of running conditions on resonant oscillations in fresh-air ventilator blades used in thermal power plants. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 13(1), 139-146. https://doi.org/10.2298/TSCI0901139T
Tasić MB, Mitrović R, Popović P, Tasić MM. Influence of running conditions on resonant oscillations in fresh-air ventilator blades used in thermal power plants. in Thermal Science. 2009;13(1):139-146. doi:10.2298/TSCI0901139T .
Tasić, Milan B., Mitrović, Radivoje, Popović, Predrag, Tasić, Marko M., "Influence of running conditions on resonant oscillations in fresh-air ventilator blades used in thermal power plants" in Thermal Science, 13, no. 1 (2009):139-146, https://doi.org/10.2298/TSCI0901139T . .