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Chaotic vibrations of nonlinearly supported tubes in crossflow [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
35 pages : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
By means of the unsteady-flow theory and a bilinear mathematical model, a theoretical study is presented for chaotic vibrations associated with the fluidelastic instability of nonlinearly supported tubes in a crossflow. Effective tools, including phase portraits, power spectral density, Poincare maps, Lyapunov exponent, fractal dimension, and bifurcation diagrams, are utilized to distinguish periodic and chaotic motions when the tubes vibrate in the instability region. The results show periodic and chaotic motions in the region corresponding to fluid-damping-controlled instability. Nonlinear supports, with symmetric or asymmetric gaps, significantly affect the distribution of periodic, quasiperiodic, and chaotic motions of a tube exposed to various flow velocities in the instability region of the tube-support-plate-inactive mode.
Report Numbers
E 1.99:anl--92/18
anl--92/18
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
02/01/1992.
"anl--92/18"
"DE92014074"
Chen, S.S.; Cai, Y.
Type of Report and Period Covered Note
Topical; 02/01/1992 - 02/01/1992
Funding Information
W-31109-ENG-38
View MARC record | catkey: 13826295