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Abstract
The aim of the present paper is to show the results of the shaking table experimental study concerning the diagnosis of damage in a model of cylindrical steel tank with self-supported roof which is filled with liquid. During the tests, the base of the structure was excited under the harmonic loading with variable frequency. The tests were repeated for different stages of damage, which was introduced in the model by easing the bolts of structural supports as well as by cutting the welds between the shell and roof as well as between roof elements. The results of the study show a characteristic decrease in the natural frequencies for the case of structural supports with reduced stiffness (global type of damage). On the other hand, cutting the welds (local type of damage) has lead to the considerable increase in the power spectral density values for higher vibration modes.
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- Category:
- Articles
- Type:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Published in:
-
Key Engineering Materials
no. 525-526,
pages 477 - 480,
ISSN: 1662-9795 - Language:
- English
- Publication year:
- 2012
- Bibliographic description:
- Burkacki D., Jankowski R.: Diagnosis of Damage in a Steel Tank Model by Shaking Table Harmonic Tests// Key Engineering Materials. -Vol. 525-526., (2012), s.477-480
- Verified by:
- Gdańsk University of Technology
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