| 000 | 03908nlm0a2200469 4500 | ||
|---|---|---|---|
| 001 | 648847 | ||
| 005 | 20231030040851.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\14006 | ||
| 090 | _a648847 | ||
| 100 | _a20160608a2016 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aNL | ||
| 105 | _ay z 100zy | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aChaotic dynamics of flexible beams driven by external white noise _fJ. Awrejcewicz [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 46 tit.] | ||
| 330 | _aMathematical models of continuous structural members (beams, plates and shells) subjected to an external additive white noise are studied. The structural members are considered as systems with infinite number of degrees of freedom. We show that in mechanical structural systems external noise can not only lead to quantitative changes in the system dynamics (that is obvious), but also cause the qualitative, and sometimes surprising changes in the vibration regimes. Furthermore, we show that scenarios of the transition from regular to chaotic regimes quantified by Fast Fourier Transform (FFT) can lead to erroneous conclusions, and a support of the wavelet analysis is needed. We have detected and illustrated the modifications of classical three scenarios of transition from regular vibrations to deterministic chaos. The carried out numerical experiment shows that the white noise lowers the threshold for transition into spatio-temporal chaotic dynamics. A transition into chaos via the proposed modified scenarios developed in this work is sensitive to small noise and significantly reduces occurrence of periodic vibrations. Increase of noise intensity yields decrease of the duration of the laminar signal range, i.e., time between two successive turbulent bursts decreases. Scenario of transition into chaos of the studied mechanical structures essentially depends on the control parameters, and it can be different in different zones of the constructed charts (control parameter planes). Furthermore, we found an interesting phenomenon, when increase of the noise intensity yields surprisingly the vibrational characteristics with a lack of noisy effect (chaos is destroyed by noise and windows of periodicity appear). | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tMechanical Systems and Signal Processing _d1987- |
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| 463 |
_tVol. 79 : Special Issue from ICEDyn 2015 _feds. Nuno Maia, Miguel de Matos Neves _v[P. 225-253] _d2016 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aпараметрические колебания | |
| 610 | 1 | _aбалки | |
| 610 | 1 | _aФурье-анализ | |
| 610 | 1 | _aвейвлет-анализ | |
| 701 | 1 |
_aAwrejcewicz _bJ. |
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| 701 | 1 |
_aKrysko _bA. V. _cspecialist in the field of Informatics and computer engineering _cprogrammer Tomsk Polytechnic University, Professor, doctor of physico-mathematical Sciences _f1967- _gAnton Vadimovich _2stltpush _3(RuTPU)RU\TPU\pers\36883 |
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| 701 | 1 |
_aPapkova _bI. V. |
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| 701 | 1 |
_aZakharov _bV. M. |
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| 701 | 1 |
_aErofeev _bN. P. |
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| 701 | 1 |
_aKrylova _bE. Yu. |
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| 701 | 1 |
_aMrozowski _bJ. |
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| 701 | 1 |
_aKrysko _bV. A. |
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| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bИнститут кибернетики (ИК) _bКафедра инженерной графики и промышленного дизайна (ИГПД) _bНаучно-учебная лаборатория 3D моделирования (НУЛ 3DМ) _h6704 _2stltpush _3(RuTPU)RU\TPU\col\20373 |
| 801 | 2 |
_aRU _b63413507 _c20170515 _gRCR |
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| 856 | 4 | _uhttp://dx.doi.org/10.1016/j.ymssp.2016.02.043 | |
| 942 | _cCF | ||