Tribology Online最新文献_第9页

Analysis of the Sealing Capability of Radial Shaft Sealing Rings Using a Semi-Analytical Contact Model 用半解析接触模型分析径向轴密封圈的密封性能

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Tribology Online Pub Date : 2022-06-15 DOI: 10.2474/trol.17.97

Flavien Foko Foko, Christopher W. Burkhart, S. Thielen, B. Sauer

引用次数: 1

Young’s Modulus of Fatty Acid Adsorption Films on Si Surface Measured Using Ar Gas Cluster Ion Beams 用氩气簇离子束测量硅表面脂肪酸吸附膜的杨氏模量

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Tribology Online Pub Date : 2022-06-15 DOI: 10.2474/trol.17.110

H. Tani, N. Tagawa, Shouhei Kawada, Renguo Lu, S. Koganezawa

引用次数: 0

Identification of Tribological Phenomena in Glass Grinding by Acoustic Emission Sensing 基于声发射传感的玻璃磨削摩擦现象识别

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Tribology Online Pub Date : 2022-05-15 DOI: 10.2474/trol.17.86

Kouki Imai, A. Hase

引用次数: 0

Study on Reaction Mechanism of Sulfur and Phosphorus Type Additives Using an Acoustic Emission Technique 用声发射技术研究硫磷型添加剂的反应机理

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Tribology Online Pub Date : 2022-04-30 DOI: 10.2474/trol.17.78

Miho Morita, Shodai Tachiyama, K. Onodera, A. Hase

{"title":"Study on Reaction Mechanism of Sulfur and Phosphorus Type Additives Using an Acoustic Emission Technique","authors":"Miho Morita, Shodai Tachiyama, K. Onodera, A. Hase","doi":"10.2474/trol.17.78","DOIUrl":"https://doi.org/10.2474/trol.17.78","url":null,"abstract":"Sulfur and phosphorus additives are used in lubricants as extreme-pressure and antiwear agents, which are typically used together to ensure reliability over a wide range of lubrication conditions. However, the working mechanism of the combined additive system has not been clearly defined due to difficulties obtaining information on the material surface where these additives work. This is because this surface is constantly being worn during testing. Therefore, in situ analysis applying an acoustic emission (AE) technique was proposed. AEs are elastic stress waves generated during the deformation and fracture of solids, which can be measured in real-time, providing information with respect to the magnitudes and types of damage. In this paper, an application of the AE helps to clarify how each additive acts on the surface in real-time. The working mechanism to understand improved reliability using both sulfur and phosphorous additives was investigated by the AE technique, along with conventional surface analysis methods. It is concluded that wear reducing properties were improved by the reaction of sulfur additives to remove the protruded parts, followed by the reaction of phosphorous additives to form a protective antiwear film.","PeriodicalId":23314,"journal":{"name":"Tribology Online","volume":"95 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83351776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Condition-Based Monitoring for Marine Engine Maintenance by Analyzing Drain Cylinder Oil Sample 基于状态监测的船舶发动机排气缸油样分析

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Tribology Online Pub Date : 2022-04-15 DOI: 10.2474/trol.17.71

A. Famakinwa, T. Shibutani

引用次数: 0

Tribological Properties of Tin-Zinc Hybrid Coating on Bronze in Lubricated Condition 润滑条件下青铜表面锡锌杂化涂层的摩擦学性能

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Tribology Online Pub Date : 2022-03-15 DOI: 10.2474/trol.17.54

Minami Yamada, H. Usami

引用次数: 0

On the Dynamic Characteristics of Rough Porous Inclined Slider Bearing Lubricated with Micropolar Fluid 微极流体润滑粗糙多孔倾斜滑块轴承动态特性研究

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Tribology Online Pub Date : 2022-03-15 DOI: 10.2474/trol.17.59

N. Naduvinamani, Ashwini Angadi

引用次数: 4

Non-Linear Wear Propagation Property and Prediction Method Having Influencing Pitting Failure of Helical Gears 影响斜齿轮点蚀失效的非线性磨损传播特性及预测方法

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Tribology Online Pub Date : 2022-03-15 DOI: 10.2474/trol.17.44

K. Kumagai, Hanlin Liu, Sérgio Kurokawa

{"title":"Non-Linear Wear Propagation Property and Prediction Method Having Influencing Pitting Failure of Helical Gears","authors":"K. Kumagai, Hanlin Liu, Sérgio Kurokawa","doi":"10.2474/trol.17.44","DOIUrl":"https://doi.org/10.2474/trol.17.44","url":null,"abstract":"A simulation method taking into account sequential changes of the tooth contact state due to the tooth surface wear was developed in order to evaluate the influence of wear on pitting durability. As a result of calculating the tooth end relief shape as a parameter, the variation in the wear propagation rate was obtained depending on the contact stress distribution. The study also obtained the nonlinear wear propagation property, in which the initial wear propagation was rapid and then changed gradually. In order to verify the wear characteristics, gear durability tests were conducted using gears with tooth tip modification and end relief, and sequential changes in the tooth surface wear state were observed. The test results revealed that the non-linear wear propagation property was obtained as in the calculation results. Wear propagation in the tooth lead direction and pitting life were able to be predicted. Using this calculation method and the experimental evaluation, it was made clear that the temporal alteration of contact stress and the non-linear propagation changed the pitting initiation timing and position, and may also have an effect on the pitting durability.","PeriodicalId":23314,"journal":{"name":"Tribology Online","volume":"122 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88030818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Surfactants on the Tribological Behavior of Organic Carbon Nanotubes Particles Additive under Boundary Lubrication Conditions 边界润滑条件下表面活性剂对有机碳纳米管颗粒摩擦学行为的影响

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Tribology Online Pub Date : 2022-02-28 DOI: 10.2474/trol.17.19

A. C. Opia, Mohd Kameil Abdul Hamid, S. Syahrullail, Charles C. Johnson, S. Mamah, Audu Ibrahim Ali, Mazali Izhari Izmi, Che Daud Zul Hilmi, Muhammad Salman Khan, Abu Bakar Abd Rahim

引用次数: 1

Effective Elastic Moduli of Magnetic Disks with Molecularly Thin Liquid Lubricant Films Determined Using Ar-Gas Cluster Ion Beam 用ar -气簇离子束测定分子薄液体润滑膜磁盘的有效弹性模量

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Tribology Online Pub Date : 2022-02-28 DOI: 10.2474/trol.17.32

H. Tani, Renguo Lu, S. Koganezawa, N. Tagawa

引用次数: 1