Industrial Lubrication and Tribology最新文献

Experimental study on the synergistic effect between components and tribological properties of modified dendritic nanosilica PI/EP–DFNS composite coatings 改性枝晶纳米二氧化硅PI/ EP-DFNS复合涂层组分协同效应及摩擦学性能的实验研究

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2026-01-10 DOI: 10.1108/ilt-05-2025-0217

Lixiu Zhang, Zhiqiang Huang, Zhenyu Yin, Xiaoyi Wei, Ting Li, Zhengxian Sun

{"title":"Experimental study on the synergistic effect between components and tribological properties of modified dendritic nanosilica PI/EP–DFNS composite coatings","authors":"Lixiu Zhang, Zhiqiang Huang, Zhenyu Yin, Xiaoyi Wei, Ting Li, Zhengxian Sun","doi":"10.1108/ilt-05-2025-0217","DOIUrl":"https://doi.org/10.1108/ilt-05-2025-0217","url":null,"abstract":"Purpose The aim of this paper is to prepare dendritic nanosilica/polyimide/epoxy (PI/EP–DFNS) composite solid lubricant as solid lubricant coatings for bearings to improve the friction and wear performance of bearings. Design/methodology/approach Modified dendritic fiber nanosilica (DFNS) was prepared by microemulsion method and mixed with PI/EP to form a composite coating. The tribological properties were evaluated under dry sliding conditions (30–40 N load) using a ball and disk friction and wear tester. The wear mechanisms were systematically characterized by surface profilometry, ultra-deep microscopy and scanning electron microscopy. Findings Uniform dispersion of DFNS within the matrix was achieved. The 4 Wt.% DFNS composite exhibited optimal performance: microhardness increased by 53%, friction coefficient decreased by 26.8% and specific wear rate dropped two orders of magnitude. Practical implications This paper elucidates the wear mechanism of composite coatings and tests the tribological effects of different working environments on the coatings. Originality/value In this paper, KH550 was used to modify DFNS, and DFNS was homogeneously dispersed in PI/EP composite materials to prepare PI/EP–DFNS composite coatings. The friction performance of the composite coating is compared with that of the pure EP coating to prove the superiority of the composite coating.","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"78 3","pages":"382-391"},"PeriodicalIF":0.0,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and performance of multifunctional lubricant additives based on renewable tung oil 基于可再生桐油的多功能润滑油添加剂的合成与性能研究

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2026-01-02 DOI: 10.1108/ilt-08-2025-0389

Liqin Ding, Jie Deng, Yuxi Fan, Ruiyuan Tang, Shengrong Liang, Lili Nian

{"title":"Synthesis and performance of multifunctional lubricant additives based on renewable tung oil","authors":"Liqin Ding, Jie Deng, Yuxi Fan, Ruiyuan Tang, Shengrong Liang, Lili Nian","doi":"10.1108/ilt-08-2025-0389","DOIUrl":"https://doi.org/10.1108/ilt-08-2025-0389","url":null,"abstract":"Purpose This study aims to design and synthesize a novel vegetable oil-based lubricant additive – poly(tung oil-styrene) (PTST) and to systematically evaluate its comprehensive performance as a pour point depressant, viscosity index improver and anti-wear additive. Design/methodology/approach The polymerization conditions were optimized by a single-factor experiment method. The copolymer was characterized by infrared spectroscopy, nuclear magnetic resonance spectroscopy and gel permeation chromatography. Additionally, its pour point depression performance, viscosity-temperature performance and anti-wear performance were evaluated in accordance with the Chinese standard methods GB/T 3535-2006, GB/T 265-1988 and NB/SH/T 0189-2017, respectively. Findings Compared with poly(tung oil-methyl methacrylate) with a short straight-chain structure, PTST with a benzene ring structure exhibited superior thermal stability and pour point depression performance, but inferior viscosity-temperature performance. Meanwhile, the two copolymers exhibited similar anti-wear performance. Originality/value This work presents a renewable, multifunctional lubricant additive that simultaneously enhances low-temperature flow, viscosity-temperature behavior and anti-wear performance. PTST exhibits strong potential as an eco-friendly alternative to replace traditional petroleum-based additives.","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"1 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2026-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147912708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The tribological properties of porous oil-impregnated PTFE composites prepared by CA pyrolysis synergizing with SBF/FeOCl reinforcements CA热解与SBF/FeOCl增强剂协同制备多孔油浸PTFE复合材料的摩擦学性能

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2025-10-31 DOI: 10.1108/ilt-05-2025-0245

Jialin Yan, Liming Zhu, Bingli Pan, Longlong Zhang, Yihao Zhang, Huafeng Zhao, Yuzhen Li, Xinyu Yuan

{"title":"The tribological properties of porous oil-impregnated PTFE composites prepared by CA pyrolysis synergizing with SBF/FeOCl reinforcements","authors":"Jialin Yan, Liming Zhu, Bingli Pan, Longlong Zhang, Yihao Zhang, Huafeng Zhao, Yuzhen Li, Xinyu Yuan","doi":"10.1108/ilt-05-2025-0245","DOIUrl":"https://doi.org/10.1108/ilt-05-2025-0245","url":null,"abstract":"Purpose This paper aims to enhance the oil retention and tribological properties of porous oil-impregnated polytetrafluoroethylene (PTFE) composites using short basalt fibers (SBF) loaded with two-dimensional layered nanoparticles iron oxychloride (FeOCl) as reinforcement. Design/methodology/approach The SBF/FeOCl reinforcement was prepared by loading nano-layered FeOCl particles onto SBF via a microwave method. Porous oil-impregnated PTFE composites (PTFE/SBF/FeOCl/G) were then fabricated using citric acid (CA) as a pore-forming agent through cold pressing and heat sintering, followed by computational simulation of the composites. Findings The oil storage and retention properties of the composites were significantly improved. Compared with pure PTFE, the hardness of PTFE/SBF/FeOCl/G increased by 11%, while the average friction coefficient and wear rate decreased by 52.3% and 73.9%, respectively. Computational simulations revealed that FeOCl loading improved the interfacial bonding between the matrix and PTFE. Originality/value This study is expected to promote the application of FeOCl in the field of tribology and the development of porous oil-impregnated polymers in industrial fields. Peer review The peer review history for this article is available at: Link to the cited website","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"1 1","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2025-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147920172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tribological properties of rare earth oxide nanoparticles in different vegetable oil–based lithium greases 稀土氧化物纳米颗粒在不同植物油基锂脂中的摩擦学性能

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2025-09-17 DOI: 10.1108/ilt-01-2025-0019

Qiyang Long, Liping Xiong, Zhongyi He, Xingxing Zhu, Lili Li, Jian Liu, Yinglei Wu

{"title":"Tribological properties of rare earth oxide nanoparticles in different vegetable oil–based lithium greases","authors":"Qiyang Long, Liping Xiong, Zhongyi He, Xingxing Zhu, Lili Li, Jian Liu, Yinglei Wu","doi":"10.1108/ilt-01-2025-0019","DOIUrl":"https://doi.org/10.1108/ilt-01-2025-0019","url":null,"abstract":"Purpose This paper aims to investigate the tribological properties of CeO2 and La2O3 in different vegetable oil–based lithium greases. Design/methodology/approach Lithium greases were prepared with rapeseed oil and waste vegetable oil as base oils as well as nano-rare earth oxides additives which were added before the saponification. The structure of the lithium greases was analyzed by Fourier transform infrared spectroscopy and scanning electron microscopy. Its thermal stability was evaluated by thermogravimetric analysis. The tribological properties of lithium greases were assessed via a four-ball friction and wear test. The morphology of the worn surfaces of test balls was characterized by scanning electron microscopy equipped with an energy-dispersive spectrometer and three-dimensional profilometry. Findings The results showed that the extreme pressure value, thermal stability and anti-wear ability of the lithium greases were improved after the addition of nano-rare earth oxides. The introduction of 0.05 Wt.% CeO2 or 0.01 Wt.% La2O3 in lithium greases exhibit good anti-wear ability, especially in waste vegetable oil–based lithium grease, with 15.3% and 20.4% reduction in wear scar diameter, respectively. The significant improvement in anti-wear performance is mainly due to the stable physical adsorption films and chemical tribo-film generated onto the friction surface during the friction process. Originality/value This work serves as a reference for the preparation of lithium grease with different base oils using nanomaterials as additives and enriches the study of nano-rare earth oxides as lubricant additives. Peer review The peer review history for this article is available at: Link to the website","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

UV resistance and tribological properties of β-diketone organic molybdenum as lubricating additive in aluminum complex grease β-二酮型有机钼在铝复合润滑脂中的抗紫外线性能和摩擦学性能

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2025-04-24 DOI: 10.1108/ilt-02-2025-0048

Hui Zhao, Huilin Fang, Yuefeng Ma, Zhipeng Li, Tianhui Ren

{"title":"UV resistance and tribological properties of β-diketone organic molybdenum as lubricating additive in aluminum complex grease","authors":"Hui Zhao, Huilin Fang, Yuefeng Ma, Zhipeng Li, Tianhui Ren","doi":"10.1108/ilt-02-2025-0048","DOIUrl":"https://doi.org/10.1108/ilt-02-2025-0048","url":null,"abstract":"Purpose This study aims to extend the service life and applicability under ultraviolet (UV) irradiation conditions, the authors reveal the strong UV resistance of dibenzoylmethane molybdenum (MDBM) in aluminum-based greases by analyzing the effect of UV radiation on the rheological properties, antioxidant properties and UV absorption. Meanwhile, the authors evaluate the tribological properties of MDBM under different sliding modes and applied loads in aluminum-based greases. Design/methodology/approach In this work, the authors designed and synthesized an S- and P-free MDBM through a simple one-pot method and examined the tribological and UV-resistant performance of MDBM within aluminum complex grease. Findings The results show that MDBM has good friction-reducing and anti-wear properties, which is attributed to the adsorption of the MDBM itself and the generation of minor amount of MoO3 on the worn surface at a maximum Hertzian contact pressure of 0.6 Gpa. The authors also reveal the strong UV resistance of MDBM in aluminum-based greases by analyzing the effect of UV radiation on the rheological properties, antioxidant properties and UV absorption, which is mainly attributed to self-keto-enol isomer interconversion from the special structure of β-diketone. Originality/value The work demonstrates a feasible way to develop novel multifunctional UV resistance organic molybdenum lubricating materials. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2025-0048/","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"77 9","pages":"1486-1496"},"PeriodicalIF":0.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147906544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Bio-lubricant based on sinapic acid: property and structure-property relationship studies 基于辛酸的生物润滑剂：性能及构效关系研究

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2025-02-26 DOI: 10.1108/ilt-06-2024-0226

Lin Ma, Chenghong Hu, Zhenlin Lv, Xi He, Rui Dong, Mingjin Fan

{"title":"Bio-lubricant based on sinapic acid: property and structure-property relationship studies","authors":"Lin Ma, Chenghong Hu, Zhenlin Lv, Xi He, Rui Dong, Mingjin Fan","doi":"10.1108/ilt-06-2024-0226","DOIUrl":"https://doi.org/10.1108/ilt-06-2024-0226","url":null,"abstract":"Purpose This study aims to develop synthetic ester lubricating oil using renewable sinapic acid as raw material, to explore the structural design and selection of raw materials for green, high-performance synthetic ester oils. Design/methodology/approach A series of the sinapate ester oils were synthesized through esterification and alkoxylation reactions using renewable source sinapic acid as the raw material. The molecular structures of the oils were characterized by nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy spectroscopy and elemental analysis. The oils were evaluated for safety, viscosity-temperature properties, thermal and oxidative stability, as well as friction reducing and anti-wear characteristics. Findings Compared to commercial base oil tris (2-ethylhexyl) trimellitate (Phe-3Ci8), the bio-lubricant exhibits superior antifriction and anti-wear properties. Notably, the JCi8-C12 sample performed exceptionally well, reducing the friction coefficient by 11.42% and wear volume (WV) by 54.44% in steel/steel tribo-pairs. In steel/aluminum tribo-pairs, the friction coefficient decreased by 27.48%, while WV was reduced by 85.81%. Mechanistic studies reveal that the introduction of short-chain methoxy groups and stable conjugated systems (aromatic rings and double bonds) inhibit oxidation and decomposition at elevated temperatures. The p-p stacking effect enables lubricant molecules to arrange stably on friction surfaces, forming a durable lubricating film. Originality/value The utilization of biomass resources to develop green synthetic lubricating oil with excellent performance not only enhances the added value of waste from agricultural processing but also offers significant benefits in terms of both economic and environmental sustainability.","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"77 5","pages":"665-677"},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the tribological properties of kaolin/MoDDP composite lubricant additives under heavy load and impact conditions 高岭土/MoDDP复合润滑添加剂在重载和冲击条件下的摩擦学性能研究

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2025-01-08 DOI: 10.1108/ilt-09-2024-0331

Lei Wang, Xinming Wang, Liang Li, Chuang Yang, Yuqin Zhu

{"title":"Research on the tribological properties of kaolin/MoDDP composite lubricant additives under heavy load and impact conditions","authors":"Lei Wang, Xinming Wang, Liang Li, Chuang Yang, Yuqin Zhu","doi":"10.1108/ilt-09-2024-0331","DOIUrl":"https://doi.org/10.1108/ilt-09-2024-0331","url":null,"abstract":"Purpose With respect to severe working conditions such as heavy load and impact, this paper aims to investigate the friction reduction and anti-wear performance of kaolin and molybdenum dialkyl dithiophosphate (MoDDP) composite lubricant additives to improve the lubrication effect of a single additive. Design/methodology/approach A four-ball friction test was carried out to determine the optimal concentration of kaolin and organic molybdenum additives and the tribological properties of the kaolin/MoDDP composite lubricant additives. A ring block test of composite lubricant additives was designed to investigate its lubrication performance under the severe working conditions of low speed, heavy load and impact. Findings The results showed that the optimal addition mass fractions of kaolin and MoDDP were 4.0 and 1.5 Wt.%, respectively, when kaolin and MoDDP were used as single lubricant additives. Compared with the single additive, the 4.0 Wt.% kaolin/1.5 Wt.% MoDDP composite lubricant additive showed excellent friction reduction and anti-wear effects under heavy load and impact conditions. Physicochemical analysis of the wear surface revealed that the lamellar kaolin additive and MoDDP had excellent synergistic effects, and the friction process promoted the generation of lubricant films containing a chemically reactive layer of MoS 2 , MoO 2 , FeS 2 and Fe 2 O 3 and a physically adsorbent layer containing SiO 2 and Al 2 O 3 , which play important roles in anti-wear and friction reduction. Originality/value The excellent friction reduction and anti-wear effects of lamellar silicate minerals and the excellent antioxidant properties and good synergistic effects of molybdenum were comprehensively used to develop the composite additives with great lubricating properties.","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"77 2","pages":"300-308"},"PeriodicalIF":0.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147886089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Oleylamine-grafted carbon nanoparticles as the friction-reducing and anti-wear additives of aviation lubricating oils 烯胺接枝碳纳米颗粒作为航空润滑油减摩抗磨添加剂的研究

4区工程技术

Industrial Lubrication and Tribology Pub Date : 2024-11-11 DOI: 10.1108/ilt-07-2024-0269

Xiang Liu, Xinghai Cheng, Pengyu Feng, Jing Li, Zhongping Tang, Jiangbing Wang, Yonggang Chen, Hongjie Zhu, Hengcheng Wan, Lei Zhang

{"title":"Oleylamine-grafted carbon nanoparticles as the friction-reducing and anti-wear additives of aviation lubricating oils","authors":"Xiang Liu, Xinghai Cheng, Pengyu Feng, Jing Li, Zhongping Tang, Jiangbing Wang, Yonggang Chen, Hongjie Zhu, Hengcheng Wan, Lei Zhang","doi":"10.1108/ilt-07-2024-0269","DOIUrl":"https://doi.org/10.1108/ilt-07-2024-0269","url":null,"abstract":"Purpose This paper aims to try to develop new, environmentally friendly and efficient lubricating additives; study the compatibility of carbon-based additives with different base oils [Polyalphaolefin (PAO)-3, PAO-20 and NPE-2]; and explore the lubrication mechanism. Design/methodology/approach Oleylamine modified carbon nanoparticles (CNPs-OA) were prepared and the dispersion stability of CNPs-OA in PAO-3, PAO-20 and NPE-2 base oils was investigated by transmission electron microscopy, Fourier transform infrared, thermogravimetric analysis, energy dispersive spectroscopy and X-ray photoelectron spectroscopy. Universal Mechanical Tester (UMT) platform was used to carry out experiments on the effects of different additive concentrations on the lubricating properties of base oil. Findings The mean friction coefficient of PAO-3, PAO-20 and NPE-2 reduced by 32.8%, 10.1% and 11.4% when the adding concentration of CNPs-OA was 1.5, 2.0 and 0.5 Wt.%, respectively. Generally, The CNPs-OA exhibited the best friction-reducing and anti-wear performance in PAO-3. Originality/value The agglomeration phenomenon of carbon nanoparticles as lubricating additive was improved by surface modification, and the lubricating effect of carbon nanoparticles in three synthetic aviation lubricating base oils was compared.","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"77 1","pages":"115-127"},"PeriodicalIF":0.0,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147904947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of elastic deformation on squeezing film lubrication properties of soft tribocontacts with microstructured surface 弹性变形对具有微结构表面的软摩擦接触挤压膜润滑特性的影响

IF 1.6 4区工程技术

Industrial Lubrication and Tribology Pub Date : 2024-09-23 DOI: 10.1108/ilt-02-2024-0049

Binbin Su, Xianghe Zou, Zhaoxiang Wang, Lirong Huang

{"title":"Effect of elastic deformation on squeezing film lubrication properties of soft tribocontacts with microstructured surface","authors":"Binbin Su, Xianghe Zou, Zhaoxiang Wang, Lirong Huang","doi":"10.1108/ilt-02-2024-0049","DOIUrl":"https://doi.org/10.1108/ilt-02-2024-0049","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Inspired by the high-friction performance of the soft toe pads of tree frogs, this study aims to investigate the effect of elastic deformation on the lubrication properties of squeezing films inside soft tribocontacts with microstructured surface under wet conditions.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>A one-dimensional hydrodynamic extrusion model was used to study the film lubrication characteristics of conformal contact. The lubrication characteristics of the extruded film, including load-carrying capacity, liquid flow and surface elastic deformation, were obtained through the simultaneously iterative solution of the fluid-governing and deformation equations.</p>\u0000<h3>Findings</h3>\u0000<p>The results show that the hydrodynamic pressure is approximating parabolically and symmetrically distributed in the contact area, and the peak value appears in the center of the extrusion surface. Elastic deformation increases the thickness of the liquid film, weakens the bearing capacity and homogenizes the liquid flow rate of inside soft friction contact. The magnitude of this effect greatly increases as the initial liquid film thickness decreases. Moreover, the elastic deformation directly affects the average film thickness of the extrusion contact. Narrow and shallow microchannels are found to result in a more prominent elastic deformation on the microstructured soft surface.</p>\u0000<h3>Originality/value</h3>\u0000<p>These results present a design for soft tribocontacts suitable for submerged or wet environments involving high friction, such as wiper blades, in situ flexible electrons and underwater robots.</p>\u0000<h3>Peer review</h3>\u0000<p>The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2024-0049/</p>","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"15 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of high-speed reducer in electric vehicle based on analysis of lubrication 基于润滑分析的电动汽车高速减速器优化方案

IF 1.6 4区工程技术

Industrial Lubrication and Tribology Pub Date : 2024-09-13 DOI: 10.1108/ilt-04-2024-0123

Fuchun Jia, Xianghuan Liu, Yao Fu

{"title":"Optimization of high-speed reducer in electric vehicle based on analysis of lubrication","authors":"Fuchun Jia, Xianghuan Liu, Yao Fu","doi":"10.1108/ilt-04-2024-0123","DOIUrl":"https://doi.org/10.1108/ilt-04-2024-0123","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purposes of this paper are optimization of high speed reducer in electric vehicles based on the analysis of lubrication and verification of simulation accuracy and optimization results.</p>\u0000<h3>Design/methodology/approach</h3>\u0000<p>The traditional CFD method presents poor applicability to complex geometric problems due to grid deformity. Therefore, moving particle semi-implicit (MPS) method is applied in this study to simulate lubrication of the reducer and analyze the influence of input speed and lubrication system design on the distribution. According to the results, the reducer is optimized. Meanwhile, the experiments for lubrication and churning power loss is carried out to verify the accuracy of simulation and optimization effects.</p>\u0000<h3>Findings</h3>\u0000<p>The flow field of lubricant inside the reducer is obtained. The lubrication system of reducer needs to be improved. Simulation and experiment show that the optimization is sufficient and efficient.</p>\u0000<h3>Originality/value</h3>\u0000<p>According to the simulation of lubrication, the reducer is optimized. The lubrication experimental setup is established. The conclusion of paper can provide the method and tool for reducer in electric vehicle.</p>\u0000<h3>Peer review</h3>\u0000<p>The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-04-2024-0123/</p>","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"63 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0