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ARTICLE
Selection of viscous damping coefficients using the continuous wavelet transform method for a gear system
| 1 | Mechanics, Modelling and Production Research Laboratory (LA2MP), National Engineering School of Sfax, University of Sfax, Tunisia |
| 2 | National Engineering School of Tunis, University of Tunis El-Manar, Tunisia |
Submission date: 2019-01-15
Final revision date: 2019-08-27
Acceptance date: 2019-10-16
Online publication date: 2020-07-15
Publication date: 2020-07-15
Journal of Theoretical and Applied Mechanics 2020;58(3):585–598
KEYWORDS
TOPICS
ABSTRACT
Viscous damping is frequently used in the equation of motion to present the dissipation
mechanism of a mechanical system. The orders of frequencies can be easily selected to
determine viscous damping coefficients (VDCs) when the degree of freedom of the structure
is low. For complex structures, difficulties in selecting the orders of reference frequencies to
obtain reasonable VSCs are encountered. This paper mainly discusses the capability of the
CWT method to select optimum frequencies of viscous damping formulation. The proposed
procedure considers both the classical Rayleigh, modal and the proposed full model modal
damping. The method is validated using a numerical time domain response of a two-stage
gear system.
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