Determining the Coupling Source on a Set of Oscillators from Experimental Data

Juan Carlos Jauregui-Correa, Carlos S. López-Cajun and Mihir Sen

Complexity, 2017, vol. 2017, 1-10

Abstract:

Complex systems are a broad concept that comprises many disciplines, including engineering systems. Regardless of their particular behavior, complex systems share similar behaviors, such as synchronization. This paper presents different techniques for determining the source of coupling when a set of oscillators synchronize. It is possible to identify the location and time variations of the coupling by applying a combination of analytical techniques, namely, the source of synchronization. For this purpose, the analysis of experimental data from a complex mechanical system is presented. The experiment consisted in placing a 24-bladed rotor under an airflow. The vibratory motion of the blades was recorded with accelerometers, and the resulting information was analyzed with four techniques: correlation coefficients, Kuramoto parameter, cross-correlation functions, and the recurrence plot. The measurements clearly show the existence of frequencies due to the foreground components and the internal interaction between them due to the background components (coupling).

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:8017138

DOI: 10.1155/2017/8017138

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