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Applications of Nonlinearity in Passive Vibration Control: A Review
Journal of Vibration Engineering & Technologies ( IF 2.7 ) Pub Date : 2020-06-12 , DOI: 10.1007/s42417-020-00216-3
P. S. Balaji , K. Karthik SelvaKumar

Background

Vibration present on various levels in many engineering fields and hence vibration mitigation has become a subject of intense study. The nonlinear vibration isolation devices are effective for broad frequency bandwidth and can provide better vibration isolation than linear devices. The need for nonlinearity in stiffness and damping characteristics has motivated researchers to apply the nonlinearity found in mechanisms or materials in the passive vibration control devices.

Review Factor

This review discusses the applications of nonlinearity in the passive vibration control devices to provide an understanding of how the nonlinearity is applied and useful in the implemented system. Further, applications for nonlinearity can also be extended in the energy harvesting devices, Nonlinear energy sink, metamaterials for the purpose of vibration isolation and energy harvesting. The need for nonlinearity also encouraged research work through inspiration from the nature called bio-inspired devices. The bio-inspired devices mimic the nonlinearity of the biological system to suppress the vibrations.

Conclusions

The nonlinear passive isolation is effective for wide frequency bandwidth than the linear isolation system. Further, the nonlinear systems also reduce transmissibility much efficiently than the linear system. The nonlinear energy harvesting system shows a great scope to harvest energy from wide ranges of excitations. The bio-inspired devices also are proven to be effective in vibration isolation. Additionally the design of the metamaterial with nonlinearity in the microstructure, proves to be promising in the vibration suppression applications. Based on the review, the nonlinearity introduced into the systems has greater benefits than the linear systems.



中文翻译:

非线性在被动振动控制中的应用

背景

在许多工程领域中,振动存在于各个层面,因此减轻振动已成为研究的重点。非线性隔振装置对于宽频带有效,并且与线性装置相比可以提供更好的隔振效果。刚度和阻尼特性对非线性的需求促使研究人员应用在被动振动控制设备的机构或材料中发现的非线性。

审查因素

这篇综述讨论了非线性在无源振动控制设备中的应用,以提供对非线性如何应用以及在已实现系统中有用的理解。此外,非线性的应用还可以扩展到能量收集装置,非线性能量吸收器,用于隔振和能量收集目的的超材料。对非线性的需求也通过称为生物启发装置的自然界的启发而鼓励了研究工作。受生物启发的设备模仿生物系统的非线性来抑制振动。

结论

非线性无源隔离比线性隔离系统对宽带宽有效。此外,非线性系统还比线性系统更有效地降低了透射率。非线性能量收集系统显示了从多种激发中收集能量的广阔空间。生物启发的设备也被证明在隔振方面是有效的。另外,在微观结构中具有非线性的超材料的设计被证明在振动抑制应用中是有前途的。基于此,与线性系统相比,引入系统的非线性具有更大的优势。

更新日期:2020-06-12
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