Nonlinear dynamics of fluid-structure systems. Final technical report for period January 5, 1991 - December 31, 1997

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The technical research was directed at problems involving the dynamics of fluid flow and elastic structures. Such problems occur in heat-exchange systems in energy generating plants. Fluid excited vibrations of structures can result in unwanted impact forces which can lead to metal fatigue failures. Mathematical theories based on linear models have been used for several decades. In this research the authors explored the phenomena associated with nonlinear effects using experimental models, mathematical models and numerical computation. A number of nonlinear effects were observed experimentally including chaotic dynamics, multi-fractal Poincare maps, quasi-periodic vibrations, subcritical Hopf bifurcations, helical waves in a tube ... continued below

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10 p.

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Moon, Francis C. July 20, 1999.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 37 times . More information about this report can be viewed below.

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Description

The technical research was directed at problems involving the dynamics of fluid flow and elastic structures. Such problems occur in heat-exchange systems in energy generating plants. Fluid excited vibrations of structures can result in unwanted impact forces which can lead to metal fatigue failures. Mathematical theories based on linear models have been used for several decades. In this research the authors explored the phenomena associated with nonlinear effects using experimental models, mathematical models and numerical computation. A number of nonlinear effects were observed experimentally including chaotic dynamics, multi-fractal Poincare maps, quasi-periodic vibrations, subcritical Hopf bifurcations, helical waves in a tube row and spatial localization.

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10 p.

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OSTI as DE00756804

Medium: P; Size: 10 pages

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  • Other Information: PBD: 20 Jul 1999

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  • Report No.: None
  • Grant Number: FG02-91ER14168
  • DOI: 10.2172/756804 | External Link
  • Office of Scientific & Technical Information Report Number: 756804
  • Archival Resource Key: ark:/67531/metadc711302

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Office of Scientific & Technical Information Technical Reports

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  • July 20, 1999

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 6, 2017, 6:48 p.m.

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Moon, Francis C. Nonlinear dynamics of fluid-structure systems. Final technical report for period January 5, 1991 - December 31, 1997, report, July 20, 1999; United States. (digital.library.unt.edu/ark:/67531/metadc711302/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.