Number of the records: 1

Stability of the vertical excitation of slender structures

SYSNO ASEP	0364230
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Stability of the vertical excitation of slender structures
Author(s)	Náprstek, Jiří (UTAM-F)_{RID, ORCID, SAI} Fischer, Cyril (UTAM-F)_{RID, SAI, ORCID}
Number of authors	2
Source Title	Vibration Problems ICOVP 2011. - Berlin : Springer, 2011 / Náprstek J. ; Horáček J. ; Okrouhlík M. ; Marvalová B. ; Verhulst F. ; Sawicki J.T. - ISSN 0930-8989 - ISBN 978-94-007-2068-8
Pages	s. 145-151
Number of pages	7 s.
Action	International Conference on Vibrational Problems 2011
Event date	05.09.2011-08.09.2011
VEvent location	Praha
Country	CZ - Czech Republic
Event type	WRD
Language	eng - English
Country	DE - Germany
Keywords	auto-parametric resonance ; inverted pendulum ; slender structures
Subject RIV	JM - Building Engineering
R&D Projects	IAA200710805 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA200710902 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	GA103/09/0094 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z20710524 - UTAM-F (2005-2011)
UT WOS	000314230800020
Annotation	Slender structures exposed to a strong vertical component of an earthquake excitation are endangered by auto-parametric resonance effect. In sub-critical linear regime the vertical and horizontal response components are independent. In post-critical regime, the non-trivial horizontal response occurs and dynamic non-linear interaction of both vertical and horizontal response components takes place. It can be shown using a simplified analytical model, that there exist several theoretical stability limits either for the parameters of excitation or for parameters of the structure and subsoil. One corresponds to appearance of the non-trivial horizontal response. Other describes the case, when the horizontal response exhibits steadily increasing amplitude, which fact leads sooner or later to collapse of the structure.
Workplace	Institute of Theoretical and Applied Mechanics
Contact	Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285
Year of Publishing	2012

Number of the records: 1