PDF(Pubmed)
Abstract：
Biomimetic structures are inspired by elegant and complex architectures of natural creatures, drawing inspiration from biological structures to achieve specific functions or improve specific strength and modulus to reduce weight. In particular, the rapid closure of a Venus flytrap leaf is one of the fastest motions in plants, its biomechanics does not rely on muscle tissues to produce rapid shape-changing, which is significant for engineering applications. Composites are ubiquitous in nature and are used for biomimetic design due to their superior overall performance and programmability. Here, we focus on reviewing the most recent progress on biomimetic Venus flytrap structures based on smart composite technology. An overview of the biomechanics of Venus flytrap is first introduced, in order to reveal the underlying mechanisms. The smart composite technology was then discussed by covering mainly the principles and driving mechanics of various types of bistable composite structures, followed by research progress on the smart composite-based biomimetic flytrap structures, with a focus on the bionic strategies in terms of sensing, responding and actuation, as well as the rapid snap-trapping, aiming to enrich the diversities and reveal the fundamentals in order to further advance the multidisciplinary science and technological development into composite bionics.
摘要：
仿生结构的灵感来自自然生物优雅而复杂的建筑，从生物结构中汲取灵感以实现特定功能或提高特定强度和模量以减轻重量。特别是,金星捕蝇叶片的快速闭合是植物中最快的运动之一，它的生物力学不依赖于肌肉组织来产生快速的形状变化，这对工程应用具有重要意义。复合材料在自然界中无处不在，由于其优越的整体性能和可编程性，被用于仿生设计。这里,我们重点回顾了基于智能复合技术的仿生金星捕蝇结构的最新进展。首先介绍了金星捕蝇的生物力学概述，以揭示潜在的机制。然后讨论了智能复合技术，主要涵盖了各种类型的双稳态复合结构的原理和驱动力学，其次是基于智能复合材料的仿生捕蝇结构的研究进展，专注于感知方面的仿生策略，响应和致动，以及快速捕捉，旨在丰富多样性，揭示基本原理，以进一步推进多学科科学技术发展为复合仿生学。
