Noise-Influenced Response of Duffing Oscillator
Noise-Influenced Response of Duffing Oscillator
复制标题
杜芬振荡器受噪声影响的响应
DOI：
10.1115/imece2015-51620
复制
发表时间：
2015
影响因子：
5.6
通讯作者：
B. Balachandran
中科院分区：
文献类型：
--
作者：
Vipin Agarwal;B. Balachandran
噪声是不可避免的，存在于一系列工程系统中，它可以在影响系统动态方面发挥重要作用。在本研究中，结合实验和数值研究进行了解的Duffing振子的硬化和软化弹簧特性的响应。为了作为硬化型和软化型振荡器的原型，考虑了自由端带有磁体的悬臂结构。该头端磁体位于另一个固定磁体的磁场中。在简谐激励的存在下，该系统的复杂运动，通过实验和数值方法进行检查。研究了噪声对系统响应的影响，结果表明，在适当的噪声水平下，受简谐激励的振子的混沌行为会受到显著的影响。目前的工作提供了一个一瞥噪声影响的反应的可能性。版权所有© 2015年由ASME
Noise is unavoidable and present in a range of engineering systems, and it can play a significant role in influencing system dynamics. In the present study, a combination of experimental and numerical studies are undertaken to understand the responses of Duffing oscillators with hardening and softening spring characteristics. To serve as a prototype for hardening type and softening type oscillators, a cantilever structure with a magnet at the free end is considered. This tip magnet is located in the magnetic field of another magnet that is fixed in position. In the presence of harmonic excitations, the complex motions of this system are examined through experimental and numerical means. The influence of noise on the system response is studied, and it is shown that with an appropriate level of noise, the chaotic behavior of a harmonically forced oscillator can be significantly influenced. The present work provides a glimpse into the possibilities for noise-influenced responses.Copyright © 2015 by ASME