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Interfacial potential barrier theory of friction and wear
XU Zhongming, DING Lingyun, HUANG Ping, XU Zhongming
《机械工程前沿(英文)》 2008年 第3卷 第3期 页码 276-282 doi: 10.1007/s11465-008-0043-0
关键词: coefficient standard interfacial interaction formulas calculation
Effect of friction coefficients on the dynamic response of gear systems
Lingli JIANG, Zhenyong DENG, Fengshou GU, Andrew D. BALL, Xuejun LI
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 397-405 doi: 10.1007/s11465-017-0415-4
The inevitable deterioration of the lubrication conditions in a gearbox in service can change the tribological properties of the meshing teeth. In turn, such changes can significantly affect the dynamic responses and running status of gear systems. This paper investigates such an effect by utilizing virtual prototype technology to model and simulate the dynamics of a wind turbine gearbox system. The change in the lubrication conditions is modeled by the changes in the friction coefficients, thereby indicating that poor lubrication causes not only increased frictional losses but also significant changes in the dynamic responses. These results are further demonstrated by the mean and root mean square values calculated by the simulated responses under different friction coefficients. In addition, the spectrum exhibits significant changes in the first, second, and third harmonics of the meshing components. The findings and simulation method of this study provide theoretical bases for the development of accurate diagnostic techniques.
关键词: dynamic response friction coefficient wind loads wind turbine gearbox
许立忠,黄真
《中国工程科学》 2002年 第4卷 第3期 页码 63-67
文章通过相对运动关系分析,给出了超环面行星蜗杆传动中共轭运动零件行星轮与定子、行星轮与蜗杆之间相对滑动率的计算方法,得出了凸峰接触时行星轮与定子及蜗杆之间摩擦系数的计算公式;以弹流润滑理论为基础,给出了液体润滑时行星轮与定子及蜗杆之间齿面摩擦系数的计算公式;进而给出了混合摩擦状态下行星轮与定子及蜗杆之间摩擦系数的计算公式。然后,运用上述公式讨论了液体润滑时行星轮与定子及蜗杆之间齿面摩擦系数的相对大小及其随传动参数的变化规律;给出了行星轮与定子全部为凸峰接触时摩擦系数随传动参数的变化规律;讨论了混合摩擦状态下,行星轮与定子之间摩擦系数随膜厚比的变化规律。
Tribological properties of onion like fullerenes and NiFe
Ruixiang WANG,Yihao ZHANG,Haizhou WU
《能源前沿(英文)》 2021年 第15卷 第1期 页码 208-212 doi: 10.1007/s11708-017-0454-x
关键词: refrigeration lubricants friction coefficient nano-composites reciprocating motion onion like fullerenes
Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe
Ruixiang WANG,Yihao ZHANG,Yi LIAO
《能源前沿(英文)》 2020年 第14卷 第3期 页码 644-648 doi: 10.1007/s11708-017-0453-y
关键词: rotary compressor friction coefficient nanocomposite materials coefficient of performance fullerenes (C70)
Testing development of different surface treatments on pervious concrete
Mina YEKKALAR,Liv HASELBACH,Quinn LANGFITT
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 385-393 doi: 10.1007/s11709-016-0351-0
关键词: pervious concrete static coefficient of friction pedestrian
Coulomb-type solutions for passive earth pressure with steady seepage
WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei
《结构与土木工程前沿(英文)》 2008年 第2卷 第1期 页码 56-66 doi: 10.1007/s11709-008-0001-2
关键词: function coefficient Coulomb-type effective friction different drainage
Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers
ZHANG Ruihua, CHEN Haichu
《机械工程前沿(英文)》 2007年 第2卷 第4期 页码 433-438 doi: 10.1007/s11465-007-0074-y
关键词: spherical micro-gripper friction coefficient dynamic frequency
Analysis of nonlinear channel friction inverse problem
CHENG Weiping, LIU Guohua
《结构与土木工程前沿(英文)》 2007年 第1卷 第2期 页码 205-210 doi: 10.1007/s11709-007-0024-0
Effects of leakage and friction on the miniaturization of a Wankel compressor
Yilin ZHANG, Wen WANG
《能源前沿(英文)》 2011年 第5卷 第1期 页码 83-92 doi: 10.1007/s11708-010-0125-7
A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method
Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 333-339 doi: 10.1007/s11465-013-0276-4
A novel multi-probe micro-fabrication apparatus was developed based on the friction-induced fabrication method. The main parts of the apparatus include actuating device, loading system, and control system. With a motorized linear stage, the maximum fabrication area of 50 mm × 50 mm can be achieved, and the maximum sliding speed of probes can be as high as 10 mm/s. Through locating steel micro balls into indents array, the preparation of multi-probe array can be realized by a simple and low-cost way. The cantilever was designed as a structure of deformable parallelogram with two beams, by which the fabrication force can be precisely controlled. Combining the friction-induced scanning with selective etching in KOH solution, various micro-patterns were fabricated on Si(100) surface without any masks or exposure. As a low-cost and high efficiency fabrication device, the multi-probe micro-fabrication apparatus may encourage the development of friction-induced fabrication method and shed new light on the texture engineering.
关键词: friction-induced fabrication silicon surface texture friction multi-probe
王渭源
《中国工程科学》 2001年 第3卷 第8期 页码 29-32
当前,工程师和科学家都对微牛和纳牛量级载荷静摩擦系数(以下简称微牛纳牛静摩擦系数)很感兴趣。但文献中至今没有详细讨论过微牛纳牛静摩擦系数与载荷的关系,而且发表的实验结果都不相互讨论。从微分静摩擦系数的定义出发,导出几种典型模型下微分静摩擦系数和表观静摩擦系数的表式,并据此广泛讨论这些文献中的实验结果。
Air-side heat transfer and friction characteristics of biofouled evaporator under wet conditions
Hui PU, Guoliang DING, Xiaokui MA, Haitao HU, Yifeng GAO,
《能源前沿(英文)》 2010年 第4卷 第3期 页码 306-312 doi: 10.1007/s11708-009-0067-0
Modeling of the minimum cutting thickness in micro cutting with consideration of the friction around
Tianfeng ZHOU, Ying WANG, Benshuai RUAN, Zhiqiang LIANG, Xibin WANG
《机械工程前沿(英文)》 2020年 第15卷 第1期 页码 81-88 doi: 10.1007/s11465-019-0561-y
关键词: tool friction minimum cutting thickness finite element method tool edge radius micro cutting
标题 作者 时间 类型 操作
Interfacial potential barrier theory of friction and wear
XU Zhongming, DING Lingyun, HUANG Ping, XU Zhongming
期刊论文
Effect of friction coefficients on the dynamic response of gear systems
Lingli JIANG, Zhenyong DENG, Fengshou GU, Andrew D. BALL, Xuejun LI
期刊论文
Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe
Ruixiang WANG,Yihao ZHANG,Yi LIAO
期刊论文
Testing development of different surface treatments on pervious concrete
Mina YEKKALAR,Liv HASELBACH,Quinn LANGFITT
期刊论文
Coulomb-type solutions for passive earth pressure with steady seepage
WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei
期刊论文
Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers
ZHANG Ruihua, CHEN Haichu
期刊论文
Effects of leakage and friction on the miniaturization of a Wankel compressor
Yilin ZHANG, Wen WANG
期刊论文
A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method
Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN
期刊论文
Air-side heat transfer and friction characteristics of biofouled evaporator under wet conditions
Hui PU, Guoliang DING, Xiaokui MA, Haitao HU, Yifeng GAO,
期刊论文