Study of Impact Resistance Based on Porcupine Quills Bionic Thin-walled Structure

IF 4.9 3区计算机科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Journal of Bionic Engineering Pub Date : 2023-04-25 DOI:10.1007/s42235-023-00380-8

Tianshu Huang, Zhengyu Mao, Lijun Chang, Xingyuan Huang, Zhihua Cai

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引用次数: 1

Abstract

Using an electron microscope to observe the microstructure of a porcupine quills cross-section and a bionic method, a new bionic structure was proposed. The performance of the structure in terms of energy absorption, maximum impact force withstood, and impact force efficiency was evaluated using Ansys finite element simulation software to simulate the structure's impact. To examine the impact of ribs on the structural performance of the bionic porcupine quills, a control structure was developed. According to the results of the finite element simulation, the presence of ribs in the Bionic porcupine quills structure can transfer stress uniformly to the overall structure and share stress for some of the rupture-prone regions. Ribs reduce stress concentration in specific areas and increase the impact force efficiency of the structure. The SEA and IFE values of bionic porcupine quills were 30.01 kJ/kg and 84.22%, respectively. The structure is then optimized for parameter design in order to find the optimal structure by response surface in order to improve the structure's SEA and decrease its MIF. In order to evaluate the precision of the response surface, the optimal structure predicted is validated using finite element simulation.

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豪猪刺仿生薄壁结构抗冲击性能研究

利用电子显微镜观察豪猪刺的微观结构，结合仿生方法，提出了一种新的仿生结构。利用Ansys有限元仿真软件对结构的冲击进行仿真，评估结构在能量吸收、最大承受冲击力、冲击力效率等方面的性能。为了研究肋对仿生豪猪刺结构性能的影响，设计了一种控制结构。有限元模拟结果表明，仿生豪猪刺结构中肋的存在可以将应力均匀地传递到整体结构中，并在部分易破裂区域分担应力。肋减少了特定区域的应力集中，提高了结构的冲击力效率。仿生豪猪刺的SEA和IFE值分别为30.01 kJ/kg和84.22%。然后对结构进行参数优化设计，通过响应面找到最优结构，从而提高结构的SEA，降低结构的MIF。为了评估响应面的精度，利用有限元仿真对预测的最优结构进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Bionic Engineering 工程技术-材料科学：生物材料

CiteScore

7.10

自引率

10.00%

发文量

162

审稿时长

10.0 months

期刊介绍： The Journal of Bionic Engineering (JBE) is a peer-reviewed journal that publishes original research papers and reviews that apply the knowledge learned from nature and biological systems to solve concrete engineering problems. The topics that JBE covers include but are not limited to: Mechanisms, kinematical mechanics and control of animal locomotion, development of mobile robots with walking (running and crawling), swimming or flying abilities inspired by animal locomotion. Structures, morphologies, composition and physical properties of natural and biomaterials; fabrication of new materials mimicking the properties and functions of natural and biomaterials. Biomedical materials, artificial organs and tissue engineering for medical applications; rehabilitation equipment and devices. Development of bioinspired computation methods and artificial intelligence for engineering applications.