Nonlinear Modal Analysis of Mistuned Periodic Structures Subjected to Dry Friction
作者： C. Joannin , B. Chouvion , F. Thouverez , M. Mbaye , J.-P. Ousty
DOI: 10.1115/1.4031886
关键词: Linear system 、 Nonlinear system 、 Mistuning 、 Computation 、 Modal 、 Modal analysis 、 Engineering 、 Constant (mathematics) 、 Vibration 、 Mechanics 、 Acoustics
摘要: This paper deals with the dynamics of a cyclic system, representative bladed-disk subjected to dry friction forces, and exhibiting structural mistuning. The nonlinear complex modes are computed by solving eigenproblem associated free response whole structure, then used better understand forced traveling wave excitation.Similarly underlying linear tuned model possesses pairs that can be linearly combined form waves, unlike those mistuned structure. However, due nonlinearity, modal properties not constant but vary vibration amplitude in both cases.A qualitative analysis is also performed assess impact mistuning magnitude on response, suggests further statistical investigations could great interest for design bladed disks, terms mitigation robustness.Copyright © 2015 ASME
asme.org
sci-hub.se 参考文章(28)
C. W. Schwingshackl, C. Joannin, L. Pesaresi, J. S. Green, N. Hoffmann, Test Method Development for Nonlinear Damping Extraction of Dovetail Joints Springer, Cham. pp. 229- 237 ,(2014) , 10.1007/978-3-319-04501-6_21
D. J. Ewins, Modal Testing: Theory, Practice, and Application ,(1998)
Ali Hasan Nayfeh, Balakumar Balachandran, Applied nonlinear dynamics : analytical, computational, and experimental methods Wiley series in nonlinear science. ,(1995)
L. Salles, L. Blanc, F. Thouverez, A.M. Gouskov, Dynamic analysis of fretting-wear in friction contact interfaces International Journal of Solids and Structures. ,vol. 48, pp. 1513- 1524 ,(2011) , 10.1016/J.IJSOLSTR.2011.01.035
E. P. Petrov, D. J. Ewins, Analytical Formulation of Friction Interface Elements for Analysis of Nonlinear Multi-Harmonic Vibrations of Bladed Disks Journal of Turbomachinery-transactions of The Asme. ,vol. 125, pp. 364- 371 ,(2003) , 10.1115/1.1539868
F. Pichot, D. Laxalde, J.-J. Sinou, F. Thouverez, J.-P. Lombard, Mistuning identification for industrial blisks based on the best achievable eigenvector Computers & Structures. ,vol. 84, pp. 2033- 2049 ,(2006) , 10.1016/J.COMPSTRUC.2006.08.022
C. Pierre, E.H. Dowell, Localization of vibrations by structural irregularity Journal of Sound and Vibration. ,vol. 114, pp. 549- 564 ,(1987) , 10.1016/S0022-460X(87)80023-8
Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek, A method for nonlinear modal analysis and synthesis: Application to harmonically forced and self-excited mechanical systems Journal of Sound and Vibration. ,vol. 332, pp. 6798- 6814 ,(2013) , 10.1016/J.JSV.2013.08.009
G. Kerschen, M. Peeters, J.C. Golinval, A.F. Vakakis, Nonlinear normal modes, Part I: A useful framework for the structural dynamicist Mechanical Systems and Signal Processing. ,vol. 23, pp. 170- 194 ,(2009) , 10.1016/J.YMSSP.2008.04.002
S. Zucca, D. Di Maio, D.J. Ewins, Measuring the Performance of Underplatform Dampers for Turbine Blades by Rotating Laser Doppler Vibrometer Mechanical Systems and Signal Processing. ,vol. 32, pp. 269- 281 ,(2012) , 10.1016/J.YMSSP.2012.05.011