Coupled Vibration of Cracked Frame with Damping |
| M. Bold, W. Sochacki
Częstochowa University of Technology, 42-201 Częstochowa, Poland |
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| This paper presents an analytical study of vibrations of the cracked discrete-continuous system with viscous damping. The influence of viscous external, internal and structural damping on axial and lateral vibrations of cracked frame was investigated. The adopted model was Bernoulli-Euler beam model where the virtual work of non-conservative forces comes from external, internal and constructional damping of supports. The obtained results allow to determine some geometrical parameters at which the amplitude decay factor is the highest. The parameters identified on the basis of study are the depth and location of the crack, and the range of values of the constructional damping coefficient. |
DOI:10.12693/APhysPolA.138.236 topics: damping, portal frame, open crack, amplitude decay factor |