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Experimental analysis of the influence of damping on the resonance behavior of a spherical pendulum

SYSNO ASEP	0428791
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Experimental analysis of the influence of damping on the resonance behavior of a spherical pendulum
Author(s)	Pospíšil, Stanislav (UTAM-F)_{RID, SAI, ORCID} Fischer, Cyril (UTAM-F)_{RID, SAI, ORCID} Náprstek, Jiří (UTAM-F)_{RID, ORCID, SAI}
Number of authors	3
Source Title	Nonlinear Dynamics - ISSN 0924-090X Roč. 78, č. 1 (2014), s. 371-390
Number of pages	20 s.
Publication form	Print - P
Language	eng - English
Country	NL - Netherlands
Keywords	auto-parametric system ; experimental verification ; spherical pendulum ; stability of semi-trivial solution
Subject RIV	JM - Building Engineering
R&D Projects	GC13-34405J GA ČR - Czech Science Foundation (CSF)
Institutional support	UTAM-F - RVO:68378297
UT WOS	000343164200029
EID SCOPUS	84919877919
DOI	10.1007/s11071-014-1446-6
Annotation	This study describes the experimental and numerical dynamic analysis of a kinematically excited spherical pendulum. The stability of the response in the vertical plane was analyzed in the theoretically predicted auto-parametric resonance domain. Three different types of the resonance domain were investigated the properties of which depended significantly on the dynamic parameters of the pendulum and the excitation amplitude. A mathematical model was used to represent the nonlinear characteristics of the pendulum, which includes the asymmetrical damping. A special frame was developed to carry out the experiments, which contained the pendulum supported by the Cardan joint and two magnetic units attached to the supporting axes of rotation, and this was able to reproduce linear viscous damping for both of the principal response components. The stability analysis of the system was compared with the numerical solution of the governing equations and experimental observation. The most significant practical outcomes for designers are also summarized.
Workplace	Institute of Theoretical and Applied Mechanics
Contact	Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285
Year of Publishing	2015
Electronic address	http://link.springer.com/article/10.1007%2Fs11071-014-1446-6#page-1

Number of the records: 1