Numerical analysis of stochastic and mechanical interactions of natural modes including effects of vibration absorbers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F20%3A00524865" target="_blank" >RIV/68378297:_____/20:00524865 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0007827" target="_blank" >https://doi.org/10.1063/5.0007827</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0007827" target="_blank" >10.1063/5.0007827</a>
Alternative languages
Result language
angličtina
Original language name
Numerical analysis of stochastic and mechanical interactions of natural modes including effects of vibration absorbers
Original language description
Slender and lightweight structures, which are prone to all kinds of vibration, require vibration absorbers of various types. They are usually pendulum- or ball-type passive absorbers, which utilize the auto-parametric resonance for their damping effect. Introduction of devices of this type into the analysis increases the complexity of the computational model which in fact, consequently, propagates into complicated properties of the response. In this paper, a wind driven stochastic response of an aeroelastic structure is used to study the effects of stochastic and mechanical interactions of natural modes. The model describing the slender structure is considered to be linear self-adjoint with non-proportional damping due to both the material of the structure and the presence of a vibration absorber. Although the additive random excitation is supposed to be continuously distributed, the general (spatial) discretization procedure is able to unify the continuous and lumped mass model approaches. The presented methodology enables the study of both mechanical and stochastic interactions of individual eigenmodes which occur within the structure. On the example of a real tower it is shown that neglect of either type of interaction can lead to results which are incompatible with a real structure.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA19-21817S" target="_blank" >GA19-21817S: Nonholonomic interaction and dynamical stability of aeroelastic systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
AIP Conference Proceedings
ISBN
978-0-7354-1998-8
ISSN
0094-243X
e-ISSN
—
Number of pages
10
Pages from-to
020011
Publisher name
AIP Publishing
Place of publication
Melville (NY)
Event location
Krakow
Event date
Sep 8, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000653675000022