Advances in Tribology最新文献_第9页

Role of Silicon Dioxide Filler on Mechanical and Dry Sliding Wear Behaviour of Glass-Epoxy Composites 二氧化硅填料对玻璃-环氧复合材料力学和干滑动磨损性能的影响

IF 2.6

Advances in Tribology Pub Date : 2013-09-25 DOI: 10.1155/2013/324952

N. Anjum, S. A. Prasad, B. Suresha

引用次数: 31

Frictional Effects on Gear Tooth Contact Analysis 摩擦对齿轮齿接触的影响分析

IF 2.6

Advances in Tribology Pub Date : 2013-07-30 DOI: 10.1155/2013/181048

Zheng Li, K. Mao

{"title":"Frictional Effects on Gear Tooth Contact Analysis","authors":"Zheng Li, K. Mao","doi":"10.1155/2013/181048","DOIUrl":"https://doi.org/10.1155/2013/181048","url":null,"abstract":"The present paper concentrates on the investigations regarding the situations of frictional shear stress of gear teeth and the relevant frictional effects on bending stresses and transmission error in gear meshing. Sliding friction is one of the major reasons causing gear failure and vibration; the adequate consideration of frictional effects is essential for understanding gear contact behavior accurately. An analysis of tooth frictional effect on gear performance in spur gear is presented using finite element method. Nonlinear finite element model for gear tooth contact with rolling/sliding is then developed. The contact zones for multiple tooth pairs are identified and the associated integration situation is derived. The illustrated bending stress and transmission error results with static and dynamic boundary conditions indicate the significant effects due to the sliding friction between the surfaces of contacted gear teeth, and the friction effect can not be ignored. To understand the particular static and dynamic frictional effects on gear tooth contact analysis, some significant phenomena of gained results will also be discussed. The potentially significant contribution of tooth frictional shear stress is presented, particularly in the case of gear tooth contact analysis with both static and dynamic boundary conditions.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2013-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/181048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64387552","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: 15

Contact Mechanics of Rough Spheres: Crossover from Fractal to Hertzian Behavior 粗糙球体的接触力学:从分形到赫兹行为的交叉

IF 2.6

Advances in Tribology Pub Date : 2013-07-18 DOI: 10.1155/2013/974178

R. Pohrt, V. Popov

引用次数: 40

Optimum Groove Location of Hydrodynamic Journal Bearing Using Genetic Algorithm 基于遗传算法的流体动压滑动轴承槽位优化研究

IF 2.6

Advances in Tribology Pub Date : 2013-06-24 DOI: 10.1155/2013/580367

L. Roy, S. Kakoty

引用次数: 25

Dry Sliding Wear Behaviour of Titanium (Grade 5) Alloy by Using Response Surface Methodology 响应面法研究5级钛合金干滑动磨损行为

IF 2.6

Advances in Tribology Pub Date : 2013-06-05 DOI: 10.1155/2013/272106

S. Chauhan, K. Dass

引用次数: 61

Tribology of the Head-Disk Interface 磁头-磁盘接口摩擦学

IF 2.6

Advances in Tribology Pub Date : 2013-04-18 DOI: 10.1155/2013/574158

B. Marchon, N. Tagawa, Bo Liu, T. Karis, J. Juang

引用次数: 1

A Description of Multiscale Modeling for the Head-Disk Interface Focusing on Bottom-Level Lubricant and Carbon Overcoat Models 以底层润滑剂和碳涂层模型为重点的磁碟界面多尺度建模方法

IF 2.6

Advances in Tribology Pub Date : 2013-04-10 DOI: 10.1155/2013/794151

M. Jhon, P. Chung, Robert Smith, L. Biegler

{"title":"A Description of Multiscale Modeling for the Head-Disk Interface Focusing on Bottom-Level Lubricant and Carbon Overcoat Models","authors":"M. Jhon, P. Chung, Robert Smith, L. Biegler","doi":"10.1155/2013/794151","DOIUrl":"https://doi.org/10.1155/2013/794151","url":null,"abstract":"The challenges in designing future head disk interface (HDI) demand efficient theoretical modeling tools with flexibility in investigating various combinations of perfluoropolyether (PFPE) and carbon overcoat (COC) materials. For broad range of time and length scales, we developed multiscale/multiphysical modeling approach, which can bring paradigm-shifting improvements in advanced HDI design. In this paper, we introduce our multiscale modeling methodology with an effective strategic framework for the HDI system. Our multiscale methodology in this paper adopts a bottom to top approach beginning with the high-resolution modeling, which describes the intramolecular/intermolecular PFPE-COC degrees of freedom governing the functional oligomeric molecular conformations on the carbon surfaces. By introducing methodology for integrating atomistic/molecular/mesoscale levels via coarse-graining procedures, we investigated static and dynamic properties of PFPE-COC combinations with various molecular architectures. By bridging the atomistic and molecular scales, we are able to systematically incorporate first-principle physics into molecular models, thereby demonstrating a pathway for designing materials based on molecular architecture. We also discussed future materials (e.g., graphene for COC, star-like PFPEs) and systems (e.g., heat-assisted magnetic recording (HAMR)) with higher scale modeling methodology, which enables the incorporation of molecular/mesoscale information into the continuum scale models.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2013-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/794151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64256438","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: 5

Mechanical hybrid KERS based on toroidal traction drives: An example of smart tribological design to improve terrestrial vehicle performance 基于环形牵引驱动的机械混合动力KERS:智能摩擦学设计的一个例子，以提高地面车辆性能

IF 2.6

Advances in Tribology Pub Date : 2013-03-25 DOI: 10.1155/2013/918387

F. Bottiglione, G. Carbone, L. D. Novellis, L. Mangialardi, G. Mantriota

{"title":"Mechanical hybrid KERS based on toroidal traction drives: An example of smart tribological design to improve terrestrial vehicle performance","authors":"F. Bottiglione, G. Carbone, L. D. Novellis, L. Mangialardi, G. Mantriota","doi":"10.1155/2013/918387","DOIUrl":"https://doi.org/10.1155/2013/918387","url":null,"abstract":"We analyse in terms of efficiency and traction capabilities a recently patented traction drive, referred to as the double roller full-toroidal variator (DFTV). We compare its performance with the single roller full-toroidal variator (SFTV) and the single roller half-toroidal variator (SHTV). Modeling of these variators involves challenging tribological issues; the traction and efficiency performances depend on tribological phenomena occurring at the interface between rollers and disks, where the lubricant undergoes very severe elastohydrodynamic lubrication regimes. Interestingly, the DFTV shows an improvement of the mechanical efficiency over a wide range of transmission ratios and in particular at the unit speed ratio as in such conditions in which the DFTV allows for zero-spin, thus strongly enhancing its traction capabilities. The very high mechanical efficiency and traction performances of the DFTV are exploited to investigate the performance of a flywheel-based Kinetic Energy Recovery System (KERS), where the efficiency of the variator plays an important role in determining the overall energy recovery performance. The energy boost capabilities and the round-trip efficiency are calculated for the three different variators considered in this study. The results suggest that the energy recovery potential of the mechanical KERS can be improved with a proper choice of the variator.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2013-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/918387","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64312594","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: 17

Effect of Nitrogen Implantation on Metal Transfer during Sliding Wear under Ambient Conditions 环境条件下氮注入对滑动磨损过程中金属转移的影响

IF 2.6

Advances in Tribology Pub Date : 2013-03-21 DOI: 10.1155/2013/492858

L. Autry, H. Marcus

{"title":"Effect of Nitrogen Implantation on Metal Transfer during Sliding Wear under Ambient Conditions","authors":"L. Autry, H. Marcus","doi":"10.1155/2013/492858","DOIUrl":"https://doi.org/10.1155/2013/492858","url":null,"abstract":"Nitrogen implantation in Interstitial-Free steel was evaluated for its impact on metal transfer and 1100 Al rider wear. It was determined that nitrogen implantation reduced metal transfer in a trend that increased with dose; the Archard wear coefficient reductions of two orders of magnitude were achieved using a dose of 2e17 ions/cm2, 100 kV. Cold-rolling the steel and making volumetric wear measurements of the Al-rider determined that the hardness of the harder material had little impact on volumetric wear or friction. Nitrogen implantation had chemically affected the tribological process studied in two ways: directly reducing the rider wear and reducing the fraction of rider wear that ended up sticking to the ISF steel surface. The structure of the nitrogen in the ISF steel did not affect the tribological behavior because no differences in friction/wear measurements were detected after postimplantation heat treating to decompose the as-implanted e-Fe3N to γ-Fe4N. The fraction of rider-wear sticking to the steel depended primarily on the near-surface nitrogen content. Covariance analysis of the debris oxygen and nitrogen contents indicated that nitrogen implantation enhanced the tribo-oxidation process with reference to the unimplanted material. As a result, the reduction in metal transfer was likely related to the observed tribo-oxidation in addition to the introduction of nitride wear elements into the debris. The primary Al rider wear mechanism was stick-slip, and implantation reduced the friction and friction noise associated with that wear mechanism. Calculations based on the Tabor junction growth formula indicate that the mitigation of the stick-slip mechanism resulted from a reduced adhesive strength at the interface during the sticking phase.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2013-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/492858","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64427313","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: 3

The Head-Disk Interface Roadmap to an Areal Density of Tbit/in2 面密度为Tbit/in2的磁头-磁盘接口路线图

IF 2.6

Advances in Tribology Pub Date : 2013-03-20 DOI: 10.1155/2013/521086

B. Marchon, T. Pitchford, Y. Hsia, S. Gangopadhyay

引用次数: 108