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 inter alia 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)’.

非线性在自然和工程系统中无处不在。由此产生的动力学已成为一个已被广泛研究的多学科领域，部分原因是在科学、工程和医学的所有分支中都可能发生非线性现象。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——其中最突出的是共振现象。在存在额外谐波或随机激发的情况下，会出现两种奇异的共振形式：分别是振动共振或随机共振。此处讨论了本主题问题的第 2 部分未涵盖的几种有前途的最先进技术。它们包括除其他外图像质量的提高、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收集能量以及控制空气动力学不稳定性。它们构成了整个主题问题的重要组成部分，该主题致力于概述驱动非线性系统中的振动和随机共振。

本文是主题问题“驱动非线性系统中的振动和随机共振（第 2 部分）”的一部分。