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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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20101 - Civil engineering

Result continuities

  • Project

  • 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

  • e-ISSN

  • 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