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19. LINEAR VISCOUS DAMPING - Ed Wilson
www.edwilson.org19. LINEAR VISCOUS DAMPING Linear Viscous Damping Is a Property of the Computational Model And is not a Property of a Real Structure 19.1 INTRODUCTION
AN INTRODUCTION TO FREQUENCY RESPONSE FUNCTIONS …
www.vibrationdata.comc = viscous damping coefficient, k = stiffness, x = absolute displacement of the mass, ... and ξ is the damping ratio. Substituting the convention terms into equation (6), &x& +2ξωn x& +ωn 2 x = ωn 2 F/k (9) The Fourier transform of each side of equation (9) may be taken to …
DAMPING PROPERTIES OF MATERIALS - Vibrationdata
vibrationdata.comThe relationship between the loss factor η and the viscous damping ratio ξ is: η = 2ξ. 3 The data in Table 3 is taken from Reference 2. Table 3. Representative Damping Ratios System Viscous Damping Ratio ξ Metals (in elastic range) <0.01 Continuous Metal Structures 0.02 to 0.04 Metal Structure with Joints 0.03 to 0.07 ...