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国外文献 > 1.轴承 > 1. 基础理论与机制 > 承载与性能

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标 题： A dragonfly wing inspired biomimetic aerodynamic thrust bearing for increased load capacity
一种受蜻蜓翅膀启发的仿生式气动推力轴承，用于提高承载能力
作 者： Yu, Yunluo
Jiang, Tianchu
Jiang, Kyle
Pu, Guang
关键词： Biomimetic design  [仿生设计]
Biomimetic aerodynamic bearing  [ 仿生式空气动力轴承]
Load capacity  [ 承载能力]
Surface structures of insect wings  [ 昆虫翅膀的表面结构]
出版年： 2020
期刊名： International Journal of Mechanical Sciences
《国际机械科学杂志》
年卷期： 2020, vol.176
摘 要： A novel biomimetic aerodynamic thrust bearing is developed and investigated. The surface structure of the bearing is evolved from the micro-grids of dragonfly wings, which presumably aid flying and maneuver ability of dragonflies. The topography of the micro-grids of dragonfly wings was studied and five most representative geometries were extracted before being put on thrust bearings for performance examination. A theoretical model, solved with finite different and finite volume method, is developed to compare the static load capacity of the bearings under various velocities and flow angles, and the best geometry and velocity angle were selected and manufactured on the bearing surface for experimental tests. The dragonfly wing biomimetic bearing is found to increase load capacity by up to 46.11% in comparison with an optimized conventional spiral grooved bearing by experiments.

一种新型仿生式空气动力推力轴承被研发并进行了测试。该轴承的表面结构源自蜻蜓翅膀上的微网格，这些微网格可能有助于蜻蜓的飞行和机动能力。对蜻蜓翅膀上的微网格地形进行了研究，并提取出了五种最具代表性的几何形状，然后将其应用于推力轴承以进行性能测试。通过有限差分和有限体积方法建立了一个理论模型，用于比较在不同速度和流角下轴承的静态承载能力，并选择了最佳的几何形状和速度角度，并在轴承表面制造出来进行实验测试。实验表明，与优化后的常规螺旋槽轴承相比，蜻蜓翅膀仿生轴承的承载能力提高了多达 46.11%。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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