Blade couple connected by damping element with dry friction contacts

• Autorzy: Pešek L. , Půst L.
• Języki publikacji: EN

Abstrakty

EN

Theoretical and experimental solutions of forced vibration of a three-mass system linked together by two dry friction connections are presented. This system is a computational model of a physical model of a blade couple with a friction element measured in dynamic laboratory of Institute of Thermomechanics AS CR. Numerical solution of strongly nonlinear equations of motion shows good damping properties of the dry friction element and correspond to the results of experimental research, which is oriented on the investigation of both forced and free vibration of the physical blade couple model.

Słowa kluczowe

EN

dry friction; three masses system; damping of vibrations; irregular vibrations

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2014
• Tom: Vol. 52 nr 3
• Strony: 815--826
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Pešek L.

• Institute of Thermomechanics AS CR, Praha, Czech Republic

autor

Půst L.

• Institute of Thermomechanics AS CR, Praha, Czech Republic

Bibliografia

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• 3. Ferrante M., Pesatori E., Bachschmid N., 2012, Simulation of the dynamic behaviour of a group of blades with friction contacts, 10th International Conference on Vibrations in Rotating Machinery, 189-198, ISBN 978-0-85709-452-0
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• 5. Koh K.H., Griffin J.H., Filippi S., Akay A., 2005, Characterization of turbine blade friction dampers, Transaction of the ASME, 127, 856-862
• 6. Kozień M.S., Kołtowski B., 2011, Comparison of active and passive damping of plate vibration by piezoelectric actuators – FEM simulation, Acta Physica Polonica A, 119, 6-A, 1005-1008
• 7. Pešek L., Půst L., 2011a, Influence of dry friction damping on bladed disk vibration, Vibration Problems ICOVP 2011, Náprstek J., Horáček J. (Edit.), Berlin, Springer, 557-564
• 8. Pešek L., Půst L., 2011b, Mathematical model of a blade couple connected by damping element, Proceedings of the 8th International Conference on Structural Dynamics, EURODYN2011, Leuven, Katolieke Universiteit Leuven, 2006-2011
• 9. Pešek L., Půst L., Bula V., Vanˇek F., Cibulka J., 2012, Inter-slip damping of twisted blades in opposed bundles under rotation, 10th International Conference on Vibrations in Rotating Machinery, 293-302, ISBN 978-0-85709-452-0
• 10. Pešek L., Půst L., Vaněk F., Vesely J., 2011, FE Modeling of blade couple with friction contacts under dynamic loading, Proceedings of the 13t World Congress in Mechanism and Machine Science (IFToMM 2011), Guanajuato, Mexico, 1-8
• 11. Půst L., Pešek L., 2012, Mathematical model of two blades system, Vibration Engineering and Technology of Machinery VETOMAC 8, Szewalski Institute of Fluid-Flow Machinery, PAS, Gdańsk, 199-208, ISBN 978-83-88237-61-4
• 12. Půst L., Pešek L., Radolfov á A., 2011, Various types of dry friction characteristics for vibration damping, Engineering Mechanics, 18, 3/4, 203-224, ISSN 1802-1484
• 13. Rao, J.S., 1991, Turbomachine Blade Vibration, Wiley Eastern Limited
• 14. Sextro, W., 2007, Dynamical Contact Problems with Friction, Springer-Verlag, 2nd edition