Nonlinear dynamic phenomena in fixed and rotating mechanical structures

• Autorzy: Warmiński J.
• Języki publikacji: EN

Abstrakty

EN

A review of selected nonlinear phenomena which may occur in fixed or rotating structures has been presented in the paper. At first, a self, parametrically and externally exited oscillator with added time delay control has been studied. It has been shown that the interaction between different vibration types may produce an untypical resonance curve, with five solutions occurring, observed by an internal resonance loop. The existence of the loop may be controlled by adding a time delay input signal. A proper selection of the time delay may reduce the loop or eliminate it totally. In the second problem a rotating hub-beam structure has been studied. The blade, apart from passive layers, has been composed of two active PZT layers which enabled active vibration control. A nonlinear coupling of the structure (plant) and the controller resulted in the so called saturation phenomenon which has been effectively used for the vibration reduction.

Słowa kluczowe

EN

nonlinear vibrations; rotating structures; resonance; saturation control; composite beams

PL

drgania nieliniowe; struktury wirujące; rezonans; kontrola saturacji; belka kompozytowa

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2018
• Tom: Vol. 29
• Strony: art. no. 2018002
• Opis fizyczny: Bibliogr. 13 poz., 1 rys., wykr.

Twórcy

autor

Warmiński J.

• Department of Applied Mechanics, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland

Bibliografia

• 1. A. Luongo, D., Zulli, Parametric, external and self-excitation of a tower under turbulent wind flow, JSV, 330 (2011) 3057 – 3069.
• 2. D. Zulli, D., A. Luongo, Bifurcation and stability of a two-tower system under wind-induced parametric, external and self-excitation, JSV, 331 (2012) 365 – 383.
• 3. J. Warminski, S. Lenci, M. P. Cartmell, G. Rega, M. Wiercigroch, Nonlinear Dynamic Phenomena in Mechanics, Springer-Verlag, 2012.
• 4. K. Kecik, A. Mitura, S. Lenci, J. Warminski, Energy harvesting from a magnetic levitation system, Int. J. Non-linear Mechanics, 94 (2017) 200 – 206.
• 5. P. F. Pai, B. Wen, A. S. Naser, M. J. Schulz, Structural vibration control using PZT patches and non–linear phenomena, JSV, 215 (1998) 259 – 282.
• 6. Z. Ghouli, M. Hamdi, F. Lakrad, M. Belhaq, Quasiperiodic energy harvesting in a forced and delayed Duffing harvester device, JSV, 407 (2017) 271 – 285.
• 7. S. S. Oueini, A. H. Nayfeh, J. R. Pratt, A nonlinear vibration absorber for flexible structures, Nonlinear Dynamics, 15 (1998) 259 – 282.
• 8. J. Warminski, Frequency locking in a nonlinear MEMS oscillator driven by harmonic force and time delay, Int. J. Dynam. Control, 3 (2015) 122 – 136.
• 9. F. Verhulst, Quenching of self-excited vibrations, J. Eng. Math., 53 (2005) 349 – 358.
• 10. J. Warminski, M. P. Cartmell, A. Mitura, M. Bochenski, Active Vibration Control of a Nonlinear Beam with Self- and External Excitations, Shock and Vibration, 20 (2013) 1033 – 1047.
• 11. J. Warminski, J. Latalski, Saturation Control for a Rotating Thin-walled Composite Beam Structure, Procedia Engineering, 144 (2016) 713 – 729.
• 12. J. Latalski, J. Warminski, G. Rega, Bending-twisting vibrations of a rotating hub–thin-walled composite beam system. Mathematics and Mechanics of Solids, 22 (2017) 1303 – 1325.
• 13. J. Latalski, A coupled-field model of a rotating composite beam with an integrated nonlinear piezoelectric active element, Nonlinear Dynamics, 90 (2017) 2145 – 2162.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).