Spatial coherence in the chaotic dynamics of multi-degree-of-freedom elastic impact oscillators

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


In this paper, we describe a method for estimating the number of degrees of freedom needed to adequately model nonlinear structural systems. We apply the method to the study of chaotic oscillations of a 10 degree-of-freedom impact oscillator. The technique, which overcomes some of the shortcomings of fractal dimension estimates, uses spatial correlation data, and is called the proper orthogonal expansion method. It has previously been applied to the study of turbulent fluid flows: our goal is to adapt this technique to the analysis of nonlinear structural vibrations.

Original languageEnglish (US)
Title of host publicationMechanics Computing in 1990's and Beyond
EditorsHojjat Adeli, Robert L. Sierakowski
PublisherPubl by ASCE
Number of pages5
ISBN (Print)0872628043
StatePublished - 1991
EventASCE Engineering Mechanics Specialty Conference - Columbus, OH, USA
Duration: May 20 1991May 22 1991


OtherASCE Engineering Mechanics Specialty Conference
CityColumbus, OH, USA

All Science Journal Classification (ASJC) codes

  • General Engineering


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