Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology最新文献_第10页

Dynamic characteristics of a non-Newtonian lubrication mechanical seal with herringbone grooves considering cavitation effect 考虑空化效应的人字槽非牛顿润滑机械密封动态特性

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-06-13 DOI: 10.1177/13506501231181271

Fuyu Liu, Bo Yu, Yongfan Li, Baojie Ren, Muming Hao, Xinhui Sun, Zengli Wang, Zhentao Li

引用次数: 0

Performance analysis of journal bearing having surface waviness operating under misaligned condition 偏心条件下具有表面波纹的滑动轴承性能分析

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-06-07 DOI: 10.1177/13506501231177485

Arun Bangotra, Sanjay Sharma, Reza Taufique, Deepak Byotra

{"title":"Performance analysis of journal bearing having surface waviness operating under misaligned condition","authors":"Arun Bangotra, Sanjay Sharma, Reza Taufique, Deepak Byotra","doi":"10.1177/13506501231177485","DOIUrl":"https://doi.org/10.1177/13506501231177485","url":null,"abstract":"In this present study, the effect of surface waviness on the performance of journal bearing operating in misaligned conditions has been investigated. The journal’s misaligned conditions in the present analysis are taken about the circumferential, the axial, and both axes. For computing the pressure of lubricant inside the bearing, the finite element method has been applied to solve the Reynolds equation and thus static parameters are obtained. The static parameters, that is, load carrying capacity and coefficient of friction are evaluated at different waviness variables and are compared with misaligned journal bearing without surface waviness. It is observed that misalignment considered in both axes has the most severe effect on static performance parameters as compared to misalignment only in the circumferential or axial axis. With the increase in circumferential waviness number up to n = 5, the load-carrying capacity increases, and the coefficient of friction decreases under high eccentricity ratios. Change in waviness amplitude also impacts the bearing performance. Axial waviness always deteriorates the bearing performance. Combined waviness increases the load carrying capacity and decreases the coefficient of friction when circumferential waviness number n = 5 and axial waviness number m = 2. The highest performance enhancement ratio is attained at an eccentricity ratio of 0.8 with a circumferential waviness number n of 5, axial waviness number m of 2, and dimensionless waviness amplitude δ * of 0.075.","PeriodicalId":20570,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85991785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Performance of hydrodynamic textured journal bearing with the combined influence of elastic deformation and pseudo-plastic lubricant 弹性变形和伪塑性润滑剂联合作用下的流体动力纹理滑动轴承性能

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-06-06 DOI: 10.1177/13506501231179526

B. Manser, S. Khelladi, M. Deligant, H. Ragueb, I. Belaidi, F. Bakir

{"title":"Performance of hydrodynamic textured journal bearing with the combined influence of elastic deformation and pseudo-plastic lubricant","authors":"B. Manser, S. Khelladi, M. Deligant, H. Ragueb, I. Belaidi, F. Bakir","doi":"10.1177/13506501231179526","DOIUrl":"https://doi.org/10.1177/13506501231179526","url":null,"abstract":"This study outlines the performances of finite-length journal bearing with textured liner, shear-thinning Rabinowitsch lubricants, and considers the elastic deformation of the bearing liner. The yielded nonlinear Rabinowitsch-Reynolds PDE system has been solved using the finite difference method combined with Elrod’s algorithm for the case of cylindrical textures. The static performance of hydrodynamic lubrication, in this case, involves different parameters such as depth of texture, eccentricity ratio, elastic deformation factor, rheological index, etc. Results showed that, at a fixed eccentricity ratio, texturing of the bearing’s converging area enhances significantly the load-carrying capacity and reduces the friction coefficient compared to the smooth bearing surface (up to 22 % in load capacity and 17 % in friction coefficient). On the other hand, using a lubricant with more pronounced shear-thinning behavior and/or elastic liner reduces the journal bearing performances (up to 25 % in load capacity and 30 % in pressure). By applying the optimization technique (particle swarm optimization), an optimal arrangement of textures that can compensate for these losses in performance even at high eccentricity has been found. This optimal texture with dimensionless dimple’s depth set to 1 ( r y = 40 μ m ) improves the load capacity with 10 % for a lubricant with a rheological index α ¯ = 0.6 and elastic bearing liner with deformation parameter C 0 = 0.05 .","PeriodicalId":20570,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77437885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

On the effect of temperature in friction force measurements for a simplified piston cylinder set-up: Squeeze film combined with minimum oil film thickness measurements and viscosity index effect 温度对简化活塞缸摩擦力测量的影响:挤压膜结合最小油膜厚度测量和粘度指数效应

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-06-06 DOI: 10.1177/13506501231177484

P. Dellis

{"title":"On the effect of temperature in friction force measurements for a simplified piston cylinder set-up: Squeeze film combined with minimum oil film thickness measurements and viscosity index effect","authors":"P. Dellis","doi":"10.1177/13506501231177484","DOIUrl":"https://doi.org/10.1177/13506501231177484","url":null,"abstract":"The lubricated interface at the piston-ring and liner and its interaction with different lubricants and testing conditions is examined in terms of experimental measurements that show the minimum oil film thickness developed at the lubricated or depending on conditions partly lubricated conjunction and the surface interaction intensity, as measured from the friction sensor. An analysis is carried out with the use of different parameters for the experiments as well as different lubricants in a simplified piston-ring simulation test rig. This analysis is further enhanced with the squeeze film effect investigations close to the stroke reversals and together with cavitation initiation and load-carrying effect results from previous experimental data, light is shed on the interacting surface’s behaviour at the different lubrication regimes. Another parameter, the viscosity index of the lubricant is used as an indication of the effects of squeeze film shift and friction force measurements and how the load and temperature effect are influencing the squeeze film.","PeriodicalId":20570,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79198266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Numerical analysis of the effect of texture on the steady-state characteristics of tilting pad journal bearings 织构对可倾垫滑动轴承稳态特性影响的数值分析

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-06-02 DOI: 10.1177/13506501231179851

Bin Wei, Y. Jiao

引用次数: 0

Evaluation of tribological properties of vegetable oil–based ionanolubricants: An experimental study 植物油基离子润滑剂摩擦学性能的实验研究

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-05-31 DOI: 10.1177/13506501231179776

G. Kumar, H. Garg

引用次数: 3

Properties and tribological evaluation of graphene and fullerene nanoparticles as additives in oil lubrication 石墨烯和富勒烯纳米颗粒作为润滑油添加剂的性能和摩擦学评价

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-05-24 DOI: 10.1177/13506501231175540

Muhammad Hazman bin Sharuddin, MH Sulaiman, S. Kamaruddin, AH Dahnel, N. A. Abd Halim, Mjm Ridzuan, A. M. Abdul-Rani

引用次数: 1

Support recycling in additive manufacturing: A case study for enhanced wear performance of Ti6Al4V alloy 支持增材制造中的回收:Ti6Al4V合金增强磨损性能的案例研究

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-05-18 DOI: 10.1177/13506501231159447

R. Yamanoğlu, A. Bahador, K. Kondoh

引用次数: 0

Research on time-varying meshing stiffness of wind turbine gearbox considering tooth surface wear 考虑齿面磨损的风电齿轮箱时变啮合刚度研究

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-05-16 DOI: 10.1177/13506501231172258

Shuai Mo, Qingsen Hu, Meng-Lin Liu, Lei Wang, Heyun Bao, Guojian Cen, Yunsheng Huang

{"title":"Research on time-varying meshing stiffness of wind turbine gearbox considering tooth surface wear","authors":"Shuai Mo, Qingsen Hu, Meng-Lin Liu, Lei Wang, Heyun Bao, Guojian Cen, Yunsheng Huang","doi":"10.1177/13506501231172258","DOIUrl":"https://doi.org/10.1177/13506501231172258","url":null,"abstract":"The time-varying meshing stiffness (TVMS) is an important element of the gear system. In this paper, the TVMS of each gear set of a wind turbine gearbox is calculated based on the principle of potential energy method, where wear is the most likely failure in the operation of a wind turbine gearbox. Therefore, the Archard wear model is brought into it, and theoretically the analytical formula of stiffness considering tooth wear is derived, and the time-varying wear depth is deduced as the natural wind speed keeps changing and the input torque of the wind turbine gearbox keeps changing. The interrelationship between gear tooth wear and meshing pressure angle and number of meshes is studied in depth, and the TVMS of each gear set under wear is calculated using the modified tooth profile model. The results show that the tooth profile wear depth is related to the gear meshing angle, and the tooth profile wear depth becomes larger as the number of meshes increases, thus reducing the TVMS of the wind turbine, and the TVMS shows irregular fluctuations under time-varying wear.","PeriodicalId":20570,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83629397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Test method for determining the scuffing capacity of oils with reduced oil volume 测定油体积减小的油的耐磨损能力的试验方法

IF 2 3区工程技术

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-05-10 DOI: 10.1177/13506501231172637

Wassem Gerges, O. Heipl, Bernd Pfeifer, D. Bartel, M. Wettlaufer

{"title":"Test method for determining the scuffing capacity of oils with reduced oil volume","authors":"Wassem Gerges, O. Heipl, Bernd Pfeifer, D. Bartel, M. Wettlaufer","doi":"10.1177/13506501231172637","DOIUrl":"https://doi.org/10.1177/13506501231172637","url":null,"abstract":"Previous studies by several researchers have shown that the aging of the transmission fluid in dual clutch transmissions has a major impact on the wear protection of the highly loaded tribological contacts. Depending on the transmission design, oil sump temperature, transmitted torque, rotational speed and oil volume, the scuffing ability decreases significantly. Since typically only limited quantities of oil from gearbox tests are available to evaluate oil condition with respect to wear protection properties, available analytical standards are currently limited to methods such as viscometry, TAN, elemental analysis, and IR. A test method is presented that can be used to determine the gear scuffing load capacity of transmission fluids with a reduced oil volume. For this purpose, a standard test rig is modified to reduce the test oil volume from 1.25 liters, as specified in the public standards, to 0.5 liters. The applicability of the reduced test oil volume is demonstrated and the remaining scuffing wear protection of several used oil samples from durability testing is presented. A comparison of the tribological results with the chemical oil analysis results shows the advantage of direct testing of the oil's service properties.","PeriodicalId":20570,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86381842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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