Post-critical multi-modal vibration of a continuous inverse pendulum type system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F14%3A00428207" target="_blank" >RIV/68378297:_____/14:00428207 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.itam.cas.cz/?pid=5" target="_blank" >http://www.itam.cas.cz/?pid=5</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Post-critical multi-modal vibration of a continuous inverse pendulum type system

Popis výsledku v původním jazyce

Auto-parametric effects are processes endangering structures during a seismic attack. Tall structures exposed to a strong vertical component of an earthquake excitation nearby the epicenter can collapse due to auto-parametric resonance effect. Vertical and horizontal response components being independent in the linear regime get into a complex interaction due to non-linear terms in post-critical regime. Two generally different types of the post-critical regimes are presented: (i) post-critical state with possible recovery; (ii) exponentially rising horizontal response leading to a collapse. A special attention is paid to processes of transition from semi-trivial to post-critical state in case of time limited excitation period as it concerns the seismicprocesses. Solution method combining analytical and numerical approaches is developed and used. Its applicability and shortcomings are commented. A few hints for engineering applications are given.

Název v anglickém jazyce

Post-critical multi-modal vibration of a continuous inverse pendulum type system

Popis výsledku anglicky

Auto-parametric effects are processes endangering structures during a seismic attack. Tall structures exposed to a strong vertical component of an earthquake excitation nearby the epicenter can collapse due to auto-parametric resonance effect. Vertical and horizontal response components being independent in the linear regime get into a complex interaction due to non-linear terms in post-critical regime. Two generally different types of the post-critical regimes are presented: (i) post-critical state with possible recovery; (ii) exponentially rising horizontal response leading to a collapse. A special attention is paid to processes of transition from semi-trivial to post-critical state in case of time limited excitation period as it concerns the seismicprocesses. Solution method combining analytical and numerical approaches is developed and used. Its applicability and shortcomings are commented. A few hints for engineering applications are given.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

<a href="/cs/project/GC13-34405J" target="_blank" >GC13-34405J: Náhodné kmitání prutových konstrukcí způsobené kombinací pohyblivého zatížení a větru.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Engineering Mechanics 2014. 20th International conference. May 12-15, 2014, Svratka, Czech Republic. Book of full texts

ISBN

978-80-214-4871-1

ISSN

1805-8248

e-ISSN

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Počet stran výsledku

4

Strana od-do

416-419

Název nakladatele

Brno University of Technology. Institute of Solid Mechanics, Mechatronics and Biomechanics

Místo vydání

Brno

Místo konání akce

Svratka

Datum konání akce

12. 5. 2014

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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