Xi Peng, Qiao Yanqi, Nie Xiaoyu, Cong Qian
College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China.
Dryland Farm Machinery Key Technology and Equipment Key Laboratory of Shanxi Province, Shanxi Agricultural University, Jinzhong 030801, China.
Biomimetics (Basel). 2024 Oct 14;9(10):623. doi: 10.3390/biomimetics9100623.
This study addresses the problem that the traditional method is not effective in improving the adsorption performance of vacuum suckers. From the perspective of bionics, the adsorption performance of bionic suckers based on the excellent adsorption of the abalone abdominal foot was studied. A bionic sucker was designed by extracting the sealing ring structure of the abdominal foot tentacle. The bionic sucker was subjected to tensile experiments using an orthogonal experimental design, and the adsorption of the bionic sucker was simulated and analyzed to explore its adsorption mechanism. The results show that the primary and secondary factors affecting the adsorption of the sucker are the number of sealing rings, the width of sealing rings and the spacing of sealing rings. At 60% vacuum, the bionic sucker with two sealing rings, a 1.5 mm sealing ring width and 3 mm sealing ring spacing has the largest adsorption force, and its maximum adsorption force is 15.8% higher than that of the standard sucker. This study shows that the bionic sucker design can effectively improve the adsorption performance of the sucker. The bionic sucker had a different stress distribution on the sucker bottom, which resulted in greater Mises stress in the sealing ring and the surrounding area, while the Mises stress in the central area of the sucker was smaller.
本研究针对传统方法在提高真空吸盘吸附性能方面效果不佳的问题展开。从仿生学角度出发，基于鲍鱼腹足出色的吸附能力，对仿生吸盘的吸附性能进行了研究。通过提取腹足触手的密封环结构设计了一种仿生吸盘。采用正交试验设计对该仿生吸盘进行拉伸实验，并对其吸附性能进行模拟分析，以探究其吸附机理。结果表明，影响吸盘吸附的主次因素依次为密封环数量、密封环宽度和密封环间距。在60%真空度下，具有两个密封环、密封环宽度为1.5毫米且密封环间距为3毫米的仿生吸盘吸附力最大，其最大吸附力比标准吸盘高出15.8%。本研究表明，仿生吸盘设计能够有效提高吸盘的吸附性能。仿生吸盘在吸盘底部具有不同的应力分布，导致密封环及其周边区域的米塞斯应力较大，而吸盘中心区域的米塞斯应力较小。
