# A Review of Bioinspired Vibration Control Technology
###### Abstract  
Due to huge demand in engineering, vibration control technology and related studies have always been at the frontiers of research. Although traditional vibration control methods are stable and reliable, they have obvious shortcomings. Through evolution and natural selection, certain body-parts of animals in the natural world have been cleverly constructed and well designed. This provides a steady stream of inspiration for the design of vibration control equipment. The prime objective of this review is to highlight recent advances in the bionic design of vibration control devices. Current bionic vibration control devices were classified, and their bionic principles were briefly described. One kind was the bionic device based on the brain structure of the woodpecker, which is mostly used to reduce vibration at high frequencies. Another kind of bionic device was based on animal leg structure and showed outstanding performance in low frequency vibration reduction. Finally, we briefly listed the problems that need to be solved in current bionic vibration control technology and gave recommendations for future research direction.  
vibration control; bionics; vibration isolation; mechanical design +
Footnote †: journal: Medical  
to temperature and vibration frequency, which limits the damping effect. The quasi-zero stiffness (QZS) vibration isolation structure of common nonlinear vibration isolation systems is not only able to realize effective vibration isolation in a wide range of frequency bands, but also has good static bearing capacity [20; 21; 22]. However, the development and application of the QZS vibration isolation structure are limited because of its disadvantages such as instability, bifurcation, and strong non-linearity. Common vibration absorbers include damped dynamic vibration absorbers [23; 24], dynamic vibration absorbers using nonlinear springs [25], and discrete distributed dynamic vibration absorbers [26] and so on [27; 28; 29]. Although the passive dynamic vibration absorber has a good absorbing effect on the narrow-band response, it is still not ideal for the structure with multiple resonance peaks in the excitation frequency band and other broadband vibrations.  
Through long-term evolution, various creatures have evolved unique structures that are highly suited to their natural environment [30; 31]. For example, woodpeckers need to hit tree trunks at high speed to catch insects inside the trees [32; 33]. In this process, acceleration can reach 1000 times the acceleration of gravity, and velocity can reach six times the speed of sound [34]. However, the vibration caused by the strong impact does not damage or destroy the woodpecker's brain [35; 36; 37]. Therefore, it is one of the important development directions of current vibration control systems [38; 39; 40; 41], which can simulate biological structures and functions in order to improve the performance of traditional vibration control devices. Based on revealing different creatures' mechanisms for vibration reduction and buffering, various vibration control systems are designed with the idea of bionics in mind.  
In this article, a comprehensive and profound review of bioinspired vibration control mechanisms has been executed, based on a survey of real-world deployments and published papers over the past 15 years in the Web of Science. Various bionic vibration control mechanisms, devices, or systems in the field of mechanical engineering are classified and summarized, and their bionic basic principles are briefly analyzed. On this basis, limitations and future development trends are analyzed.