Advances in Tribology最新文献_第9页

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":"2013 1","pages":"1-27"},"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":"2013 1","pages":"1-9"},"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":"2013 1","pages":"1-16"},"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

A Correlative Defect Analyzer Combining Glide Test with Atomic Force Microscope 滑动试验与原子力显微镜相结合的相关缺陷分析仪

IF 2.6

Advances in Tribology Pub Date : 2013-03-19 DOI: 10.1155/2013/657363

Jizhong He

引用次数: 1

A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film 了解环境对类金刚石纳米复合材料薄膜摩擦磨损影响的线索

IF 2.6

Advances in Tribology Pub Date : 2013-03-04 DOI: 10.1155/2013/352387

Sukhendu Jana, Sayan Das, U. Gangopadhyay, A. Mondal, P. Ghosh

{"title":"A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film","authors":"Sukhendu Jana, Sayan Das, U. Gangopadhyay, A. Mondal, P. Ghosh","doi":"10.1155/2013/352387","DOIUrl":"https://doi.org/10.1155/2013/352387","url":null,"abstract":"The wear and friction of diamond-like nanocomposite (DLN) film have been investigated in air with different relative humidity (RH), under deionized (DI) water and saline solution. The structure of the film has been characterized by Fourier transform infrared (FTIR), Raman spectroscopy, and scanning electron microscope (SEM). The result shows two interpenetrating network structure: a–C:H and a–Si:O, and they are interpenetrated by Si–C bonding. The tribological performance has been measured using ball-on-disc tribometer with tungsten carbide ball as counterbody at 10 N normal load. Results show that with increasing relative humidity (RH) from 35% to 80%, the coefficient of friction (COF) increases gradually from 0.005 to 0.074, whereas with increasing RH the wear factor decreases from mm3/Nm and attains a minimum value of mm3/Nm at 50% RH. With further increase of RH the wear factor increases again. Moreover, in DI water and especially in saline solution, both the COF and wear factor have been found to be significantly low. A clue has been interpreted to understand environmental dependency, considering the effect of surface dangling bonds, charge transfer, and chemical interactions.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":"116 1","pages":"1-7"},"PeriodicalIF":2.6,"publicationDate":"2013-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/352387","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64409108","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: 16

Contact Thermal Analysis and Wear Simulation of a Brake Block 制动块接触热分析及磨损仿真

IF 2.6

Advances in Tribology Pub Date : 2013-02-27 DOI: 10.1155/2013/878274

Nandor Bekesi, K. Varadi

引用次数: 7