Nonlinear Dynamics and Chaos in Systems with Discontinuous Support

Non-smooth systems are abundant in nature being usually related to physical systems with dry friction, impact and backlash. These systems operate in different modes, and the transition from one mode to another can often be idealized as an instantaneous or discrete transition. Since the time scale of...

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Main Authors: Sandor Divenyi, Marcelo Amorim Savi, Luiz Fernando Penna Franca, Hans Ingo Weber
Format: Article
Language:English
Published: Wiley 2006-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2006/371630
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author Sandor Divenyi
Marcelo Amorim Savi
Luiz Fernando Penna Franca
Hans Ingo Weber
author_facet Sandor Divenyi
Marcelo Amorim Savi
Luiz Fernando Penna Franca
Hans Ingo Weber
author_sort Sandor Divenyi
collection DOAJ
description Non-smooth systems are abundant in nature being usually related to physical systems with dry friction, impact and backlash. These systems operate in different modes, and the transition from one mode to another can often be idealized as an instantaneous or discrete transition. Since the time scale of this transition is much smaller than the scale of the individual modes dynamics, its mathematical modeling can be lead as non-smooth. This contribution uses a smoothened switch model to analyze non-smooth systems. The procedure seems to be effective to deal with this kind of system, presenting advantages for the numerical implementation. As an application of the general formulation, a single-degree of freedom oscillator with discontinuous support is analyzed. System dynamical behavior shows a rich response, presenting dynamical jumps, bifurcations and chaos.
format Article
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institution Kabale University
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language English
publishDate 2006-01-01
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series Shock and Vibration
spelling doaj-art-9f608c3014a443f19d0a6393dcf6ff242025-02-03T05:47:01ZengWileyShock and Vibration1070-96221875-92032006-01-01134-531532610.1155/2006/371630Nonlinear Dynamics and Chaos in Systems with Discontinuous SupportSandor Divenyi0Marcelo Amorim Savi1Luiz Fernando Penna Franca2Hans Ingo Weber3Department of Mechanical Engineering, Universidade Federal do Rio de Janeiro, COPPE, 21.941.972, Rio de Janeiro, RJ, P.O. Box 68.503, BrazilDepartment of Mechanical Engineering, Universidade Federal do Rio de Janeiro, COPPE, 21.941.972, Rio de Janeiro, RJ, P.O. Box 68.503, BrazilCSIRO Petroleum, Drilling Mechanics, Kensington WA 6151, P.O. Box 1130, Bentley WA 6102, AustraliaPontifícia Universidade Católica do Rio de Janeiro, Department of Mechanical Engineering, 22.453.900, Rio de Janeiro, RJ, BrazilNon-smooth systems are abundant in nature being usually related to physical systems with dry friction, impact and backlash. These systems operate in different modes, and the transition from one mode to another can often be idealized as an instantaneous or discrete transition. Since the time scale of this transition is much smaller than the scale of the individual modes dynamics, its mathematical modeling can be lead as non-smooth. This contribution uses a smoothened switch model to analyze non-smooth systems. The procedure seems to be effective to deal with this kind of system, presenting advantages for the numerical implementation. As an application of the general formulation, a single-degree of freedom oscillator with discontinuous support is analyzed. System dynamical behavior shows a rich response, presenting dynamical jumps, bifurcations and chaos.http://dx.doi.org/10.1155/2006/371630
spellingShingle Sandor Divenyi
Marcelo Amorim Savi
Luiz Fernando Penna Franca
Hans Ingo Weber
Nonlinear Dynamics and Chaos in Systems with Discontinuous Support
Shock and Vibration
title Nonlinear Dynamics and Chaos in Systems with Discontinuous Support
title_full Nonlinear Dynamics and Chaos in Systems with Discontinuous Support
title_fullStr Nonlinear Dynamics and Chaos in Systems with Discontinuous Support
title_full_unstemmed Nonlinear Dynamics and Chaos in Systems with Discontinuous Support
title_short Nonlinear Dynamics and Chaos in Systems with Discontinuous Support
title_sort nonlinear dynamics and chaos in systems with discontinuous support
url http://dx.doi.org/10.1155/2006/371630
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AT marceloamorimsavi nonlineardynamicsandchaosinsystemswithdiscontinuoussupport
AT luizfernandopennafranca nonlineardynamicsandchaosinsystemswithdiscontinuoussupport
AT hansingoweber nonlineardynamicsandchaosinsystemswithdiscontinuoussupport