Using of the long squeeze film dampers in rotor systems

• Autorzy: Hlavon P. , Houfek L.
• Konferencja: Applied Mechanics 2003, Gliwice, Polska
• Języki publikacji: EN

Abstrakty

EN

The present paper focuses on the issues of rotor systems with hydrodynamic dampers known as sąueeze film dampers (SFD), which are non-linear hydraulic binding elements between the rotor and stator. The hydrodynamic dampers, with maximum discharged layer, have recently been applied more and more often thanks to their favourable characteristics, mainly in the rotor systems of aircraft engines. In principal, the dampers decrease amplitude of the actuated oscillations, primarily when crossing the critical speed. They tend to shift the amplitude-frequency characteristic of the whole system to lower values due to the supplementary material of oil film, preventing thus the transmission of vibrations on to the machine frame and, in fact, reducing noisiness of the whole equipment.

Słowa kluczowe

EN

rotor systems; long squeeze film; non-linear hydraulic binding

• Wydawca: Wydawnictwo Katedry Mechaniki Stosowanej
• Czasopismo: Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
• Rocznik: 2003
• Tom: nr 21
• Strony: 79--84
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Hlavon P.

• Institute of Thermomechanics, branch Brno, Czech Republic Academy of ScienceTechnicka, 616 69 Brno, Technická 2 tel. [phone]

autor

Houfek L.

• Institute of Thermomechanics, branch Brno, Czech Republic Academy of ScienceTechnicka, 616 69 Brno, Technická 2 tel. [phone]

Bibliografia

• [1] Hlavoň P., Malenovský E.; One approach to the modeling squeeze film damper, Colloquium Dynamics of Machines 2000, Praha 2000, s. 89-96.
• [2] Hlavoň P., Pochyły F., Malenovský E.: Matematický model hydrodynamického tlumiče, . Vypočtova mechanika 99', Nečtiny 1999, s. 91-98.
• [3] Malenovsky E.: VYyžtí Beziérových entit v mechanice. Inženýrska mechanika, ročnik 7-2000. č.6, s. 401-424.
• [4] Hlavoń P., Malenovsky E.: Analyza hydrodynamického tlumiče, Strojne iniinierstvo 2001. Mezinárodni konference, Bratislava 22. November 2001, s. 556-560.
• [5] HIavoň P., Malenovský E.: Experimental analyse of dynamic behaviour of the squeeze film damper. Colloquium Dynamics of machines, Praha February 6-7,2001, p. 49 - 52.