Title: Influence of internal friction dampers on global dynamics of discrete cyclic structure
Authors: Byrtus, Miroslav
Hajžman, Michal
Pešek, Luděk
Půst, Ladislav
Citation: BYRTUS, M., HAJŽMAN, M., PEŠEK, L., PŮST, L. Influence of internal friction dampers on global dynamics of discrete cyclic structure. In Proceedings of ISMA 2018 - USD 2018. Leuven: KU Leuven, 2018. s. 2013-2027. ISBN: 978-90-73802-99-5
Issue Date: 2018
Publisher: KU Leuven
Document type: preprint
preprint
URI: 2-s2.0-85060379549
http://hdl.handle.net/11025/33832
ISBN: 978-90-73802-99-5
Keywords in different language: nonlinear vibration, rotating systems, bladed disk, friction damping, non-smooth dynamics
Abstract in different language: This paper deals with vibration of a bladed disk containing internal friction dampers (FD). The disk is considered as a weakly coupled discrete cyclic structure where the blades are moreover mutually coupled by means of friction couplings. The global dynamics of the structure is studied. First, two limit cases are considered: unlocked FD and completely locked FD. Further, the behaviour of the structure is analysed with respect to time-dependent excitation (external force pulses). Different local behaviour is analysed along with discontinuity induced bifurcations like crossing-sliding and adding-sliding bifurcations. The stress is laid on the evaluation of dissipated power in FD per a defined time frame.
Rights: Plný text je přístupný v rámci univerzity přihlášeným uživatelům.
© KU Leuven
Appears in Collections:Preprinty / Preprints (KME)
OBD

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