Dynamic Damping - Comparison of different concepts from the point of view of their physical nature and effects on civil engineering structures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU140106" target="_blank" >RIV/00216305:26110/18:PU140106 - isvavai.cz</a>
Result on the web
<a href="https://dml.cz/bitstream/handle/10338.dmlcz/703074/PANM_19-2018-1_15.pdf" target="_blank" >https://dml.cz/bitstream/handle/10338.dmlcz/703074/PANM_19-2018-1_15.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21136/panm.2018.12" target="_blank" >10.21136/panm.2018.12</a>
Alternative languages
Result language
angličtina
Original language name
Dynamic Damping - Comparison of different concepts from the point of view of their physical nature and effects on civil engineering structures
Original language description
Sources of dynamic damping may be various. Mostly, the damping is implemented into calculations in a form of introduction of damping forces, as a product of the velocity vector and the damping matrix in an equation of motion. In practice, the damping matrix is usually assumed to be a linear combination of the mass matrix and the stiffness matrix (so called Rayleigh’s damping). This kind of damping primarily assumes the external environment viscosity as the source of damping, even though the part of Rayleigh's damping with the stiffness matrix implies the internal damping of the material. Explicitly, the internal viscosity of the material is respected using the appropriate material models. The relation between the Rayleigh damping and the Kelvin-Voight viscosity is shown in the paper. Dynamic damping occurs even when using non-elastic materials, where the unloading takes place in a different path from the loading and thus it leads to dissipation during loading cycles. The paper deals with the comparison of different types of damping of the oscillation of a building structure. The main aim of the paper is to recommend to apply the viscous material model instead of the obsolete and physically unjustified Rayleigh damping in the nonlinear dynamic time analysis of structures.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Programs and Algorithms of Numerical Mathematics Proceedings of Seminar
ISBN
978-80-85823-69-1
ISSN
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e-ISSN
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Number of pages
12
Pages from-to
107-118
Publisher name
Neuveden
Place of publication
Hejnice
Event location
Praha
Event date
Jun 24, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000576737400012