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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part H. Journal of Engineering in Medicine >Design, experiment and adsorption mechanism analysis of bionic sucker based on octopus sucker
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Design, experiment and adsorption mechanism analysis of bionic sucker based on octopus sucker

机译：基于章鱼吸盘的仿生吸盘的设计，实验和吸附机理分析

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摘要

The vacuum chuck is widely used in industrial and daily life. By observing the macroscopic and microscopic morphology of octopus sucker, it is found that the sucker surface has concave-convex continuous wave shape with large number of non-smooth morphologies. The sealing mechanism of octopus sucker is analyzed according to its surface morphology before and after adsorption, and the non-smooth morphology is found to greatly enhance the adsorption. Based on the bionics theory, the non-smooth surface morphology of octopus sucker is applied to improve the sucker adsorption. And the bionic suckers with three types of grooves are designed. According to the model of standard and bionic suckers, the sucker entities are obtained by the method of three-dimensional printing and casting. And the tensile tests of suckers are carried out. The stress of suckers is analyzed by finite element method, and the sealing mechanism is discussed. According to the test results, the bionic sucker has larger adsorption force. And the ring sucker possesses the best adsorption performance. Compared with the standard sucker, the maximum adsorption force of the bionic sucker is increased by 12.2% in the air and 25.2% underwater. The adsorption force of bionic sucker becomes larger with the increase in the groove number; when the groove number increases to a certain extent, the adsorption force becomes smaller. The deformation of non-smooth morphology during adsorption makes the bionic sucker have a larger contact area. That is the reason why the bionic sucker has good adsorption performance. The bionic design of sucker can provide a new method to improve its adsorption.
机译：真空夹头广泛用于工业和日常生活。通过观察章鱼吸盘的宏观和微观形态，发现吸盘表面具有大量非平滑形态的凹入连续波形。根据吸附前后的表面形态分析章鱼吸盘的密封机制，发现非平滑的形态大大提高了吸附。基于仿生学理论，应用章鱼吸盘的非光滑表面形态来改善吸附吸附。设计了具有三种类型凹槽的仿生吸盘。根据标准和仿生吸盘的模型，通过三维印刷和浇铸方法获得吸盘实体。并进行吸盘的拉伸试验。通过有限元方法分析吸盘的应力，并讨论了密封机构。根据测试结果，仿生吸盘具有较大的吸附力。戒指吸盘具有最佳的吸附性能。与标准吸盘相比，仿生吸盘的最大吸附力在空气中增加12.2％，水下25.2％。仿生吸盘的吸附力随着沟槽数的增加而变大;当凹槽数在一定程度上增加时，吸附力变小。吸附过程中非平滑形态的变形使得仿生吸盘具有更大的接触面积。这就是仿生吸盘具有良好吸附性能的原因。吸盘的仿生设计可以提供一种改善其吸附的新方法。

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