| Autor: | Hans Ingo Weber, Humberto Camargo Piccoli |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Noise (signal processing)
Rotor (electric) Applied Mathematics Mechanical Engineering Computation Synchronization of chaos Mathematical analysis Chaotic Aerospace Engineering Ocean Engineering Lyapunov exponent Rubbing law.invention Nonlinear Sciences::Chaotic Dynamics symbols.namesake Classical mechanics Control and Systems Engineering law symbols State space Electrical and Electronic Engineering Mathematics |
| Zdroj: | Nonlinear Dynamics. 16:55-70 |
| ISSN: | 0924-090X |
| DOI: | 10.1023/a:1008284317724 |
| Popis: | This paper presents an application for chaotic motion identification in a measured signal obtained in an experiment. The method of state space reconstruction with delay co-ordinates with the dynamic evolution described by a map is used. Poincare diagrams, correlation dimensions and Lyapunov exponents are obtained as tools for deciding about the existence of chaotic behaviour. The method is applied to measurements of the lateral displacement of a vertical rotor experiencing rubbing and in some signals chaos is observed. The work concludes that the possibility of chaotic motion is well determined with the observation of Poincare diagrams and computation of Lyapunov exponents. Correlation dimensions computations, strongly influenced by noise, are not convenient tools for investigation of chaotic behaviour in signals generated by mechanical systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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