22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-4.11.1
EXPERIMENTAL STUDY OF NONLINEAR VIBRATIONS OF THIN-WALLED CYLINDRICAL SHELLS
L. Gunawan (1), R. J. Zwaan (2), A. W. H. Klompé (2)
(1) Institut Teknologi Bandung, Indonesia;
(2) Delft University of Technology, the Netherlands
Keywords: stuctural dynamics, vibrations, nonlinear, experiments
Large amplitude vibration tests of thin-walled
aluminum cylindrical shells were performed to
validate results of theoretical analysis. The tests
were carried out on four shells with practically
clamped-clamped boundary conditions, two of
them were perfect and the other two with builtin
imperfections. The vibration behaviors of
shell responses at large amplitudes of interest
are the dependence of resonant frequency on the
response levels and the possibility of response
in the form of traveling waves. Parameters of
the study were axial loads, geometric imperfections
of the shell, excitation levels and direction
of excitation frequency sweep. Comparison
between the experimental and the theoretical
results showed good agreements qualitatively.
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