Vincent U E, McClintock P V E, Khovanov I A, Rajasekar S
Department of Physical Sciences, Redeemer's University, P.M.B. 230, Ede, Nigeria.
Department of Physics, Lancaster University, Lancaster LA1 4YB, UK.
Philos Trans A Math Phys Eng Sci. 2021 May 31;379(2198):20210003. doi: 10.1098/rsta.2021.0003. Epub 2021 Apr 12.
Nonlinearity is ubiquitous in both natural and engineering systems. The resultant dynamics has emerged as a multidisciplinary field that has been very extensively investigated, due partly to the potential occurrence of nonlinear phenomena in all branches of sciences, engineering and medicine. Driving nonlinear systems with external excitations can yield a plethora of intriguing and important phenomena-one of the most prominent being that of resonance. In the presence of additional harmonic or stochastic excitation, two exotic forms of resonance can arise: vibrational resonance or stochastic resonance, respectively. Several promising state-of-the-art technologies that were not covered in part 2 of this theme issue are discussed here. They include the improvement of image quality, the design of machines and devices that exert vibrations on materials, the harvesting of energy from various forms of ambient vibration and control of aerodynamic instabilities. They form an important part of the theme issue as a whole, which is dedicated to an overview of vibrational and stochastic resonances in driven nonlinear systems. This article is part of the theme issue 'Vibrational and stochastic resonance in driven nonlinear systems (part 2)'.
非线性在自然系统和工程系统中普遍存在。由此产生的动力学已成为一个多学科领域，并得到了广泛研究，部分原因是科学、工程和医学的各个分支中都可能出现非线性现象。用外部激励驱动非线性系统会产生大量有趣且重要的现象，其中最突出的现象之一就是共振。在存在额外的谐波或随机激励的情况下，会出现两种奇特的共振形式，分别是振动共振或随机共振。本文讨论了本主题文章第2部分未涵盖的几种有前景的先进技术。它们包括图像质量的提升、对材料施加振动的机器和设备的设计、从各种形式的环境振动中获取能量以及控制气动不稳定性。它们构成了整个主题文章的重要组成部分，该主题文章致力于对受驱动非线性系统中的振动共振和随机共振进行综述。本文是“受驱动非线性系统中的振动共振和随机共振（第2部分）”主题文章的一部分。
