{"title":"仿生叶片-微槽摩擦副的协同润滑强化和碎屑储存行为及机理","authors":"Yiman Duan, Jianxiong Wu, Chao Zhang, Liping Wang, Xiaojiang Lu, Junhui Zhang, Bing Xu","doi":"10.26599/frict.2025.9441136","DOIUrl":null,"url":null,"abstract":"<p>Friction pairs are the crucial part of hydraulic motors, which significantly affects its operational efficiency and reliability. However, the friction pairs are highly susceptible to wear and failure as hydraulic motors usually operate under drastically alternating loads. Inspired by the efficient fluid transport characteristics of leaf veins in nature, this study proposed an innovative biomimetic leaf-microgrooves to achieve lubrication reinforce and storage debris performances, thereby improving the anti-friction and wear-resistant properties of the friction pairs. By integrating friction and wear experiments with theoretical study, the effects of leaf-microgroove structural parameters - namely, its widths, depths, and angles - on the tribological behaviors and wear failure mechanisms of the friction pairs are investigated. Results show that the leaf-microgrooves design can achieve the synergistic balance between the lubricant load-bearing capacity and the debris storage capacity. Compared with those non-grooved friction pairs, the optimized leaf-microgrooves ones could reduce the friction coefficient and the wear loss by up to 38% and 64%, respectively. This bio-inspired leaf-microgrooves structure offers a novel method to enhance the anti-friction and wear-resistant properties of friction pairs.</p>","PeriodicalId":12442,"journal":{"name":"Friction","volume":"26 1","pages":""},"PeriodicalIF":6.3000,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergistic lubrication reinforce and storage debris behaviors and mechanisms of biomimetic leaf-microgrooves friction pairs\",\"authors\":\"Yiman Duan, Jianxiong Wu, Chao Zhang, Liping Wang, Xiaojiang Lu, Junhui Zhang, Bing Xu\",\"doi\":\"10.26599/frict.2025.9441136\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Friction pairs are the crucial part of hydraulic motors, which significantly affects its operational efficiency and reliability. However, the friction pairs are highly susceptible to wear and failure as hydraulic motors usually operate under drastically alternating loads. Inspired by the efficient fluid transport characteristics of leaf veins in nature, this study proposed an innovative biomimetic leaf-microgrooves to achieve lubrication reinforce and storage debris performances, thereby improving the anti-friction and wear-resistant properties of the friction pairs. By integrating friction and wear experiments with theoretical study, the effects of leaf-microgroove structural parameters - namely, its widths, depths, and angles - on the tribological behaviors and wear failure mechanisms of the friction pairs are investigated. Results show that the leaf-microgrooves design can achieve the synergistic balance between the lubricant load-bearing capacity and the debris storage capacity. Compared with those non-grooved friction pairs, the optimized leaf-microgrooves ones could reduce the friction coefficient and the wear loss by up to 38% and 64%, respectively. This bio-inspired leaf-microgrooves structure offers a novel method to enhance the anti-friction and wear-resistant properties of friction pairs.</p>\",\"PeriodicalId\":12442,\"journal\":{\"name\":\"Friction\",\"volume\":\"26 1\",\"pages\":\"\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2025-06-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Friction\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.26599/frict.2025.9441136\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Friction","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.26599/frict.2025.9441136","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Synergistic lubrication reinforce and storage debris behaviors and mechanisms of biomimetic leaf-microgrooves friction pairs
Friction pairs are the crucial part of hydraulic motors, which significantly affects its operational efficiency and reliability. However, the friction pairs are highly susceptible to wear and failure as hydraulic motors usually operate under drastically alternating loads. Inspired by the efficient fluid transport characteristics of leaf veins in nature, this study proposed an innovative biomimetic leaf-microgrooves to achieve lubrication reinforce and storage debris performances, thereby improving the anti-friction and wear-resistant properties of the friction pairs. By integrating friction and wear experiments with theoretical study, the effects of leaf-microgroove structural parameters - namely, its widths, depths, and angles - on the tribological behaviors and wear failure mechanisms of the friction pairs are investigated. Results show that the leaf-microgrooves design can achieve the synergistic balance between the lubricant load-bearing capacity and the debris storage capacity. Compared with those non-grooved friction pairs, the optimized leaf-microgrooves ones could reduce the friction coefficient and the wear loss by up to 38% and 64%, respectively. This bio-inspired leaf-microgrooves structure offers a novel method to enhance the anti-friction and wear-resistant properties of friction pairs.
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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