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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