Journal of Tribology-transactions of The Asme最新文献_第8页

Prediction of Frictional Moment of Cylindrical Roller Bearing Using Experimental Data Driven Artificial Neural Networks 基于实验数据驱动的人工神经网络预测圆柱滚子轴承摩擦力矩

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062367

Yu Hou, Xi Wang, Bihe Xu, Yangli-ao Geng, Qingyong Li, Di Yang

引用次数: 0

Experimental and simulation analysis on windage power loss of herringbone gear pair 人字形齿轮副风阻功率损失的实验与仿真分析

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062365

Jin Yang, Tengjiao Lin, L. Jiang

引用次数: 0

Interaction between gear surface wear and contact fatigue 齿轮表面磨损与接触疲劳的相互作用

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062363

Shengnan Zhang, Ming Yan, Yushi Wang

引用次数: 0

Tribological Behaviour of AA-6063 Cast Using In-Situ Microwave Process By Taguchi Method & ANFIS Model 田口法和ANFIS模型原位微波铸造AA-6063的摩擦学性能

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062371

V. Gangwar, Sudhir Kumar, H. Singh

引用次数: 0

An improved slicing technique for finite line contacts in the modelling of rolling element bearings 滚动轴承有限线接触建模中一种改进的切片技术

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062364

Di Yang, Xi Wang, Yu Hou

{"title":"An improved slicing technique for finite line contacts in the modelling of rolling element bearings","authors":"Di Yang, Xi Wang, Yu Hou","doi":"10.1115/1.4062364","DOIUrl":"https://doi.org/10.1115/1.4062364","url":null,"abstract":"\u0000 Mechanical system often involves the finite line contact of key components such as rolling element bearings and gear pairs. Different contact models have been developed to predict the load-displacement relationship and contact pressure distribution, but there usually exists a trade-off between the accuracy of simulation results and computational cost. An improved slicing technique is presented in this work. According to the half-space theory, a tri-linear fitting model is developed to express the load-displacement relationship and coupling behavior in slices of contact region, which is originally controlled by a spatial convolution. The improved slicing technique is thus formulated based on the tri-linear model. A modified Newton-Raphson algorithm is adopted to solve the free boundary problem of the improved slicing technique. The improved slicing technique is validated to be able to correctly predict the load-displacement relationships and the contact pressure distributions of different contact profiles, especially for contact pressure concentrations which other slicing techniques are unable to predict accurately. The computation speed of the proposed method is much faster than the semi-analytical method and is of the same order of other slicing technique. The high accuracy and low computational cost enable the proposed method to be applied in the on-line calculation of rolling element bearings and other sophisticated mechanical systems.","PeriodicalId":17586,"journal":{"name":"Journal of Tribology-transactions of The Asme","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42480567","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

Dimensional discussion of traction force vector on ball/raceway interface and study of bearing dynamic behavior 滚珠/滚道界面牵引力矢量的量纲讨论及轴承动态特性研究

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062375

Shuaijun Ma, Yanjing Yin, Linbo Zhu, Ke Yan, Yongsheng Zhu

{"title":"Dimensional discussion of traction force vector on ball/raceway interface and study of bearing dynamic behavior","authors":"Shuaijun Ma, Yanjing Yin, Linbo Zhu, Ke Yan, Yongsheng Zhu","doi":"10.1115/1.4062375","DOIUrl":"https://doi.org/10.1115/1.4062375","url":null,"abstract":"\u0000 As a crucial component, rolling bearings directly determine the reliability of rotating equipment. However, current dynamic models for predicting the bearing performance either ignore the velocity and stress dispersion at the ball/raceway interface or fail to consider the spin moment generated within the interface. To address this issue, the discrete features of the velocity and stress distribution are considered in this paper, and the micro-element approach is used to construct formulas to obtain the traction vectors in two and three dimensions, respectively. Two bearing dynamic models are further developed for these two types of equations: one model considers the spin moment at the interface owing to unequal contact angles between the ball and the two raceways, while the other model ignores this moment. The reliability of these models is validated by comparison with experimental test results, including cage speed and oil film thickness. The predictions from the quasi-static model are used as theoretical values to compare the ability of the two models to simulate bearing performance under different operating conditions. The results show that the prediction results of the model considering the spin moment are closer to the theoretical values than those of the model ignoring this moment. However, the moment increases the friction at the ball/raceway interface, causing this model to underestimate the extent of bearing sliding.","PeriodicalId":17586,"journal":{"name":"Journal of Tribology-transactions of The Asme","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49135410","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

Effect of Laser Mode and Power on the Tribological Behavior of Additively Manufactured IN718 Alloy Fabricated by Direct Energy Deposition (DED) 激光模式和功率对直接能量沉积IN718合金摩擦学性能的影响

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062361

Ismael Tombakti, A. Adesina, Abdullah Alharith, Moataz M. Attallah, B. AlMangour

引用次数: 0

Study on Lubricating Performance of the Bubbly Oil under High Shear Rate, Part 1: Generation Method and Viscosity Measurement of the Bubbly Oil 高剪切速率下气泡油的润滑性能研究，第一部分:气泡油的产生方法及粘度测量

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-20 DOI: 10.1115/1.4062366

Shuyun Jiang, Shaohua Li, Li Lu, Chibin Zhang

{"title":"Study on Lubricating Performance of the Bubbly Oil under High Shear Rate, Part 1: Generation Method and Viscosity Measurement of the Bubbly Oil","authors":"Shuyun Jiang, Shaohua Li, Li Lu, Chibin Zhang","doi":"10.1115/1.4062366","DOIUrl":"https://doi.org/10.1115/1.4062366","url":null,"abstract":"\u0000 Bubbly oil lubrication is a type of lubrication method which has a high potential for application. However, the lubricating performance of the bubbly oil has not been thoroughly considered. This paper aims to investigate the lubricating performance of the bubbly oil including generation of the bubbly oil, viscosity characteristics of the bubbly oil and the application study of the bubbly oil lubrication. Due to space limitation, the work is divided into two parts. Part 1 focuses on the generation method of the bubbly oil, observation of the bubbly oil and the measurement of viscosity characteristics under a high shear rate. Part 2 focuses on the application study of the bubbly oil lubrication in high-speed bearing. A generation method for the bubbly oil was proposed by a combination of the dispersed-air method and the pressurized dissolution one. An experiment setup for generating the bubbly oil, an observation system for the bubbly oil and a specially-designed viscometer for the bubbly oil were developed. The research results show that the generation method for the bubbly oil is of high efficiency and stability and the observation system is operational.","PeriodicalId":17586,"journal":{"name":"Journal of Tribology-transactions of The Asme","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45461542","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

Dry sliding wear performances of AA5052 hybrid composite brake disc materials reinforced with in-situ synthesized TiC and multi-walled CNT 原位合成TiC和多壁碳纳米管增强AA5052复合制动盘材料的干滑动磨损性能

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-11 DOI: 10.1115/1.4062296

P. Samal, P. Vundavilli

{"title":"Dry sliding wear performances of AA5052 hybrid composite brake disc materials reinforced with in-situ synthesized TiC and multi-walled CNT","authors":"P. Samal, P. Vundavilli","doi":"10.1115/1.4062296","DOIUrl":"https://doi.org/10.1115/1.4062296","url":null,"abstract":"\u0000 In this research, aluminum alloy AA5052 based hybrid metal matrix composites (MMCs) were fabricated using in-situ synthesized titanium carbide (TiC) and ex-situ multi-walled carbon nanotube (MWCNT) as reinforcements using the liquid metallurgy route. The wear characteristics of the aluminum hybrid MMCs were analyzed under the synergistic effects of TiC and multi-walled CNT. Pin-on-disc wear apparatus was utilized for the experimental investigation where the hybrid composite is considered as the disc, and the traditional brake pad material is treated as the pin. The parameters i.e. applied load, sliding velocity, sliding distance, and reinforcement content are treated as inputs, whereas the wear rate and coefficient of friction are considered as output variables for the tribological experimentation. The influence of various input process parameters on the tribological behavior of the fabricated samples was investigated. The plastic deformation attained by the base alloy exhibited the delamination, which indicates the adhesive wear, whereas the composites exhibited abrasive nature as analyzed from the wear surface morphology. The wear debris was characterized by flake-sized, corrugated, and oxidized by the microstructural study.","PeriodicalId":17586,"journal":{"name":"Journal of Tribology-transactions of The Asme","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46626118","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

Electrical Contact During a Rolling Vibratory Motion Considering Mixed Lubrication 考虑混合润滑的滚动振动过程中的电接触

IF 2.5 3区工程技术

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-11 DOI: 10.1115/1.4062295

{"title":"Electrical Contact During a Rolling Vibratory Motion Considering Mixed Lubrication","authors":"","doi":"10.1115/1.4062295","DOIUrl":"https://doi.org/10.1115/1.4062295","url":null,"abstract":"\u0000 In many devices and applications, electrical contacts are exposed to vibrations, sliding, or rolling conditions and are prone to the fretting-based degradation. Thus, lubricants are often employed in such contacts to reduce sliding wear and fretting corrosion. However, due to the non-conductive behavior of the lubricants with fluorocarbons and hydrocarbons, lubricants lead to a few adverse problems. Also, the fluid dynamics upon excitation, vibration or sliding causes extended breaks or gaps in between the conducting surfaces. In reality, this can be noticed during vibrations occurring as a result of earthquakes or technical personnel maintenance. This could also have applications to electrified rolling element bearings. Factors such as surface roughness and fluid viscosity will determine the time taken for the two surfaces of the connectors to separate from a solid conductive contact. In this work, a coupled structural-fluid theoretical model is developed for evaluating such intermittent contact breaks/gaps when two metallic rough surfaces in contact are under vibrations. The model is capable of predicting the increase in the fluid film as well as the contact resistance change with time due to the possible connector vibration. The experimentally observed rocking vibration mode seen in connectors and the time-dependent squeeze film lubrication effect are also considered.","PeriodicalId":17586,"journal":{"name":"Journal of Tribology-transactions of The Asme","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49030025","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