甲虫腿关节的摩擦学特性

IF 6.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL Friction Pub Date : 2024-07-24 DOI:10.1007/s40544-024-0933-0
Konstantin Nadein, Alexander Kovalev, Stanislav N. Gorb
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引用次数: 0

摘要

研究了两种甲虫(暗色甲虫Zophobas morio和刚果玫瑰糠虾Pachnoda marginata)股胫腿关节的摩擦学特性。通过对关节的直接测量,发现其摩擦系数非常低,仅为 0.004。据推测,半固体润滑剂在技术轴承中的作用是摩擦最小化的主要因素之一。分析了表面纹理和物理化学特性(疏水性)对角质层摩擦力的影响。通过在 "接触面/玻璃 "摩擦系统中进行测量,研究了表面纹理对接触面摩擦学特性的影响。摩擦系数(COF)随着表面粗糙度的降低而降低。同时,表面的疏水性与摩擦系数值之间没有统计学意义上的显著相关性。
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Tribological properties of the beetle leg joints

Tribological properties of femoro-tibial leg joints in two beetles, darkling beetle Zophobas morio and Congo rose chafer Pachnoda marginata were studied. Very low friction of 0.004 was revealed by the direct measurements in the joint. It is assumed that semi-solid lubricant functioning as in technical bearings is one of the leading factors of the friction minimization. Dependence of the surface texture and physical chemical properties (hydrophobicity) on the cuticle friction was analysed. Contribution of the surface texture to the tribological properties of contacting surfaces was examined by the measurement in the tribosystem “contacting surface/glass”. It is supposed that coefficient of friction (COF) decreases with decrease of surface roughness. At the same time, no statistically significant correlation was found between the hydrophobicity of the surface and the value of the friction coefficient.

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来源期刊
Friction
Friction Engineering-Mechanical Engineering
CiteScore
12.90
自引率
13.20%
发文量
324
审稿时长
13 weeks
期刊介绍: Friction is a peer-reviewed international journal for the publication of theoretical and experimental research works related to the friction, lubrication and wear. Original, high quality research papers and review articles on all aspects of tribology are welcome, including, but are not limited to, a variety of topics, such as: Friction: Origin of friction, Friction theories, New phenomena of friction, Nano-friction, Ultra-low friction, Molecular friction, Ultra-high friction, Friction at high speed, Friction at high temperature or low temperature, Friction at solid/liquid interfaces, Bio-friction, Adhesion, etc. Lubrication: Superlubricity, Green lubricants, Nano-lubrication, Boundary lubrication, Thin film lubrication, Elastohydrodynamic lubrication, Mixed lubrication, New lubricants, New additives, Gas lubrication, Solid lubrication, etc. Wear: Wear materials, Wear mechanism, Wear models, Wear in severe conditions, Wear measurement, Wear monitoring, etc. Surface Engineering: Surface texturing, Molecular films, Surface coatings, Surface modification, Bionic surfaces, etc. Basic Sciences: Tribology system, Principles of tribology, Thermodynamics of tribo-systems, Micro-fluidics, Thermal stability of tribo-systems, etc. Friction is an open access journal. It is published quarterly by Tsinghua University Press and Springer, and sponsored by the State Key Laboratory of Tribology (TsinghuaUniversity) and the Tribology Institute of Chinese Mechanical Engineering Society.
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