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Systems 2016, 4(3), 27; doi:10.3390/systems4030027

Foreground and Background Components in Separable Complex Systems

1
Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
2
Departamento de Ingeniería Mecánica, Facultad de Ingeniería, División de Posgrado, Universidad Autónoma de Querétaro, Querétaro 76010, Mexico
3
Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Querétaro 76010, Mexico
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Ockie Bosch
Received: 2 May 2016 / Revised: 12 July 2016 / Accepted: 14 July 2016 / Published: 19 July 2016
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Abstract

Complex systems are composed of a large number of individual components. Many of these systems are separable, i.e., they can be split into two coupled subsystems: one with foreground components and another with background components. The former leads to narrow peaks in the frequency spectrum of the system and the latter gives the broad-band part. There is coupling between the two subsystems, but they can be studied separately for purposes of modeling and for analysis of experimental data. Examples from the literature are given from the area of mechanical vibrations, but the approach is quite general and can be adapted to other kinds of problems. View Full-Text
Keywords: complex systems; separable systems; foreground and background components; narrow- and broad-band spectra complex systems; separable systems; foreground and background components; narrow- and broad-band spectra
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Sen, M.; Jáuregui-Correa, J.C.; López-Cajún, C.S. Foreground and Background Components in Separable Complex Systems. Systems 2016, 4, 27.

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