| Influence of external load on friction coefficient of Fe-polytetrafluoroethylene |
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| 作者姓名： | 郝秀红 潘登 张泽洋 王树强 高玉金 谷大鹏 |
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| 作者单位： | School of Mechanical Engineering;Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing;AGC Automotive（China）Co. |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant No.51605418);the Natural Science Foundation of Hebei Province,China(Grant Nos.E2016203206 and E2019203033)。 |
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| 摘 要： | A coarse-grained molecular dynamics simulation model was developed in this study to investigate the friction process occurring between Fe and polytetrafluoroethylene(PTFE).We investigated the effect of an external load on the friction coefficient of Fe–PTFE using the molecular dynamics simulations and experimental methods.The simulation results show that the friction coefficient decreases with the external load increasing,which is in a good agreement with the experimental results.The high external load could result in a larger contact area between the Fe and PTFE layers,severer springback as a consequence of the deformed PTFE molecules,and faster motion of the PTFE molecules,thereby affecting the friction force and normal force during friction and consequently varying the friction coefficient.
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| 关 键 词： | FRICTION polytetrafluoroethylene(PTFE) COARSE-GRAINED MOLECULAR DYNAMICS LOAD |
Influence of external load on friction coefficient of Fe-polytetrafluoroethylene |
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| Xiu-Hong Hao,Deng Pan,Ze-Yang Zhang,Shu-Qiang Wang,Yu-Jin Gao,Da-Peng Gu.Influence of external load on friction coefficient of Fe-polytetrafluoroethylene[J].Chinese Physics B,2020(4):397-404. |
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| Authors: | Xiu-Hong Hao Deng Pan Ze-Yang Zhang Shu-Qiang Wang Yu-Jin Gao Da-Peng Gu |
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| Affiliation: | (School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China;Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing,Yanshan University,Qinhuangdao 066004,China;AGC Automotive(China)Co.,Ltd.,Qinhuangdao 066004,China) |
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