Research Article
Chaotic Phenomena and Nonlinear Responses in a Vibroacoustic System
(a) Mode convergence for various excitation frequencies (nonchaotic, mm, m, m, m, , mm, , 16 acoustic modes). |
| Excitation freq., = | 1st symmetric mode | 1st antisymmetric mode | 2nd symmetric mode | 2nd antisymmetric mode |
| 0.741 | 98.42 | 0.00 | 1.58 | 0.00 | 2.117 | 97.85 | 0.00 | 2.15 | 0.00 | 2.510 | 99.44 | 0.00 | 0.56 | 0.00 |
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(b) Mode convergence for various excitation magnitudes (chaotic, mm, m, m, m, , mm, , 16 acoustic modes). |
| Excitation magnitude, = | 1st symmetric mode | 1st antisymmetric mode | 2nd symmetric mode | 2nd antisymmetric mode |
| 5 | 70.90 | 22.43 | 6.67 | 0.00 | 10 | 76.66 | 16.88 | 6.46 | 0.00 | 20 | 82.64 | 13.23 | 4.13 | 0.00 |
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(c) Mode convergence for various numbers of acoustic modes used (chaotic, mm, m, m, m, , mm, , ). |
| Number of acoustic modes = | 1st symmetric mode | 1st antisymmetric mode | 2nd symmetric mode | 2nd antisymmetric mode |
| 3 | 82.62 | 14.06 | 3.32 | 0.00 | 8 | 82.66 | 13.21 | 4.13 | 0.00 | 16 | 82.64 | 13.23 | 4.13 | 0.00 |
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