Page 13 - 《摩擦学学报》2020年第3期

第 3 期 陈强, 等: 人手指腹与光滑物体间的静摩擦力与湿度和抓持力的关系 279

玻璃表面的黏着力却很大. 根据式(3)，法向力越小，黏 [ 6 ] Bowden F P, Tabor D. Friction: an introduction to tribology[M].
New York: RE Krieger Publishing Company, 1973.
着力占最大静摩擦力的比重越大，从而最大静摩擦系
[ 7 ] Comaish S, Bottoms E V A. The skin and friction: deviations from
数越大. Amonton ’s laws, and the effects of hydration and lubrication[J].
图10中显示随着湿度增大，最大静摩擦系数先增 British Journal of Dermatology, 1971, 84(1): 37–43. doi: 10.1111/
加到最大后逐渐减小，且相对湿度在60%附近最大静 j.1365-2133.1971.tb14194.x.
[ 8 ] Pang Qiang, Li Wei, Xu Ping, et al. Quantitative assessment of
摩擦系数普遍较大. 这一现象也与皮肤的黏着特性有
human skin friction perception based on partial least squares
关，由上面湿度对最大静摩擦系数影响机理分析结 regression method[J]. Journal of Mechanical Engineering, 2014,
论：随着湿度增大黏着力先增加到最大后减小，在潮 50(3): 145–150 (in Chinese) [庞强, 李炜, 徐萍, 等. 人体皮肤摩擦
感知基于偏最小二乘回归方法的量化评定[J]. 机械工程学报,
湿条件下黏着力最大. 根据式(5)，在给定法向力下
2014, 50(3): 145–150]. doi: 10.3901/JME.2014.03.145.
F 为定值；再结合式(3)，随着湿度增大，最大静摩擦 [ 9 ] Kent B A, Lavery J, Engeberg E D. Anthropomorphic control of a
def
力随黏着力先增加到最大后减小，从而最大静摩擦系 dexterous artificial hand via task dependent temporally synchronized
synergies[J]. Journal of Bionic Engineering, 2014, 11(2): 236–248.
数也先增加到最大后减小.
doi: 10.1016/S1672-6529(14)60044-5.
3 结论 [10] Takamuku S, Fukuda A, Hosoda K. Repetitive grasping with
anthropomorphic skin-covered hand enables robust haptic
a.一定湿度条件下最大静摩擦系数随抓持力增加 recognition[C]//2008 IEEE/RSJ International Conference on
Intelligent Robots and Systems, Sep22-26, 2008. Nice, France:
呈负幂函数下降变化，其下降幅度与湿度具有直接关
IEEE, 2008: 3212-3217.
系. 静态抓持过程中，手指最大静摩擦系数随抓持力 [11] Derler S, Preiswerk M, Rotaru G M, et al. Friction mechanisms and
变化分两个阶段，分别是幂函数下降阶段和稳定阶段. abrasion of the human finger pad in contact with rough surfaces[J].
Tribology International, 2015, 89(9): 119–127.
b.湿度对最大静摩擦系数影响与皮肤的黏着力有
[12] Pasumarty S M, Johnson S A, Watson S A, et al. Friction of the
关，潮湿条件下皮肤黏着力最大，抓持物体稳定性优
human finger pad: influence of moisture, occlusion and velocity[J].
于干燥和湿润条件. 湿度对最大静摩擦系数的影响是 Tribology Letters, 2011, 44(2): 117–137. doi: 10.1007/s11249-011-
非线性的，随着湿度增大最大静摩擦系数逐渐增加， 9828-0.
[13] AndrÉ T, LefÈvre P, Thonnard J L. A continuous measure of
达到最大值后减小.
fingertip friction during precision grip[J]. Journal of Neuroscience
c.法向力越小最大静摩擦系数越大，这一现象主 Methods, 2009, 179(2): 224–229. doi: 10.1016/j.jneumeth.2009.01.
要与皮肤的黏着特性有关. 法向力越小，黏着力占最 031.
[14] Westling G, Johansson R S. Factors influencing the force control
大静摩擦力的比重越大，从而最大静摩擦系数越大.
during precision grip[J]. Experimental Brain Research, 1984, 53(2):
参 考 文 献 277–284.
[15] Johansson R S, Westling G. Roles of glabrous skin receptors and
[ 1 ] AndrÉ T, LÉvesque V, Hayward V, et al. Effect of skin hydration on
sensorimotor memory in automatic control of precision grip when
the dynamics of fingertip gripping contact[J]. Journal of The Royal
lifting rougher or more slippery objects[J]. Experimental Brain
Society Interface, 2011, 8(64): 1574–1583. doi: 10.1098/rsif.2011.
Research, 1984, 56(3): 550–564.
0086.
[16] Bowden F P, Tabor D. The friction and lubrication of solids[M].
[ 2 ] Tang Wei, Zhu Hua, Ding Luying, et al. Experimental study on
Oxford : Oxford University Press, 2001.
friction characteristics of human hand skin[J]. Journal of Tribology,
[17] Huang T H, Chou J C, Sun T P, et al. A device for skin moisture and
2006, 26(5): 494–497 (in Chinese) [唐玮, 朱华, 丁璐颖, 等. 人体手
environment humidity detection[J]. Sensors and Actuators B:
部 皮 肤 的 摩 擦 特 性 试 验 研 究 [J]. 摩 擦 学 学 报 , 2006, 26(5):
Chemical, 2008, 134(1): 206–212. doi: 10.1016/j.snb.2008.04.030.
494–497]. doi: 10.3321/j.issn:1004-0595.2006.05.020.
[18] Wolfram LJ. Friction of skin[J]. Journal of the Society of Cosmetic
[ 3 ] Zhang Meng, Mo Jiliang, Xu Jingye, et al. A new type of test device
Chemists, 1983, 34(8): 465–476.
for analyzing finger contact friction[J]. Journal of Tribology, 2016,
36(6): 776–780 (in Chinese) [张猛, 莫继良, 徐敬业, 等. 一种分析 [19] Adams M J, Briscoe B J, Johnson S A. Friction and lubrication of
human skin[J]. Tribology Letters, 2007, 26(3): 239 –253. doi:
手指接触摩擦的新型试验装置[J]. 摩擦学学报, 2016, 36(6):
10.1007/s11249-007-9206-0.
776–780]. doi: 10.16078/j.tribology.2016.06.016.
[20] Tomlinson S E, Lewis R, Liu X, et al. Understanding the friction
[ 4 ] Blau P J. The significance and use of the friction coefficient[J].
Tribology International, 2001, 34(9): 585–591. doi: 10.1016/S0301- mechanisms between the human finger and flat contacting surfaces
679X(01)00050-0. in moist conditions[J]. Tribology Letters, 2011, 41(1): 283–294. doi:
[ 5 ] Zhang Bingyu, Li Wei, Shi Lei, et al. Study on the sensing ability of 10.1007/s11249-010-9709-y.
finger skin under different normal forces and texture spacing[J]. [21] Gerhardt L C, StrÄssle V, Lenz A, et al. Influence of epidermal
Tribology, 2014, 34(4): 452–458 (in Chinese) [张冰玉, 李炜, 石磊, hydration on the friction of human skin against textiles[J]. Journal of
等. 不同法向力和纹理间距下的手指皮肤感知能力研究[J]. 摩擦 the Royal Society Interface, 2008, 5(28): 1317 –1328. doi:
学学报, 2014, 34(4): 452–458]. 10.1098/rsif.2008.0034.