DAMPING IDENTIFICATION IN MULTI-DEGREE-OF-FREEDOM SYSTEMS VIA A WAVELET-LOGARITHMIC DECREMENT--PART 1: THEORY

Claude-Henri Lamarque (1) , Stéphane Pernot (1) , A. Cuer (1)

1 DGCB - Département Génie Civil et Bâtiment

A wavelet-based formula similar to the logarithmic decrement formula is introduced to estimate damping in multi-degree-of-freedom systems from time-domain responses. Both analytical and numerical approaches are investigated.

Domaines: Vibrations [physics.class-ph]; Vibrations [physics.class-ph]

Claude-Henri Lamarque, Stéphane Pernot, A. Cuer. DAMPING IDENTIFICATION IN MULTI-DEGREE-OF-FREEDOM SYSTEMS VIA A WAVELET-LOGARITHMIC DECREMENT--PART 1: THEORY. Journal of Sound and Vibration, 2000, 235 (3), pp.361-374. ⟨10.1006/jsvi.1999.2928⟩. ⟨hal-00814669⟩