A RIGOROUS MODEL FOR FREQUENCY-DEPENDENT FINGERPAD FRICTION UNDER ELECTROADHESION

Fabian Forsbach, Markus Heß

DOI Number
10.22190/FUME210105015F
First page
039
Last page
049

Abstract


In the electroadhesive frictional contact of a sliding fingerpad on a touchscreen, friction is enhanced by an induced electroadhesive force. This force is dominated by the frequency-dependent impedance behavior of the relevant electrical layers. However, many existing models are only valid at frequency extremes and use very simplified contact mechanical approaches. In the present paper, a RC impedance model is adopted to characterize the behavior in the relevant range of frequencies of the AC excitation voltage. It serves as an extension to the macroscopic model for electrovibration recently developed by the authors, which is based on several well-founded approaches from contact mechanics. The predictions of the extended model are compared to recent experimental results and the most influential electrical and mechanical parameters are identified and discussed. Finally, the time responses to different wave forms of the excitation voltage are presented.

Keywords

Friction, Adhesion, Electrovibration, Surface Haptics, Tactile Display

Full Text:

PDF

References


Bau, O., Poupyrev, I., Israr, A., Harrison, C., 2010, Teslatouch: Electrovibration for Touch Surfaces, UIST 2010 - 23rd ACM Symposium on User Interface Software and Technology, pp. 283-292.

Vardar, Y., Güçlü, B., Basdogan, C., 2017, Effect of waveform on tactile perception by electrovibration displayed on touch screens, IEEE Transactions on Haptics, 10, pp. 488-499.

Grimnes, S., 1983, Electrovibration, cutaneous sensation of microampere current, Acta Physiologica Scandinavica, 118, pp. 19-25.

Liu, X., Lu, Z., Lewis, R., Carré, M.J., Matcher, S.J., 2013, Feasibility of using optical coherence tomography to study the influence of skin structure on finger friction, Tribology International, 63, pp. 34-44.

van Kuilenburg, J.V., Masen, M.A., van der Heide, E., 2013, A review of fingerpad contact mechanics and friction and how this affects tactile perception, Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 229, pp. 243–258.

Meyer, D.J., Peshkin, M.A., Colgate, J.E., 2013, Fingertip friction modulation due to electrostatic attraction, 2013 World Haptics Conference (WHC), pp. 43-18.

Vezzoli, E., Amberg, M., Giraud, F., Lemaire-Semail, B., 2014, Electrovibration Modeling Analysis, Haptics: Neuroscience, Devices, Modeling, and Applications Lecture Notes in Computer Science, pp. 369–376.

Shultz, C.D., Peshkin, M.A., Colgate, J.E., 2015, Surface haptics via electroadhesion: Expanding electrovibration with Johnsen and Rahbek. 2015 IEEE World Haptics Conference (WHC), pp. 57-62.

Nakamura, T., Yamamoto, A., 2017, Modeling and control of electroadhesion force in DC voltage, ROBOMECH Journal, 4, 18.

Heß, M., Forsbach, F., 2020, Macroscopic Modeling of Fingerpad Friction Under Electroadhesion: Possibilities and Limitations, Frontiers in Mechanical Engineering, 6, 77.

Gao, J., Luedtke, W.D., Gourdon, D., Ruths, M., Israelachvili, J., Landman, U., 2004, Frictional forces and amontons' law: From the molecular to the macroscopic scale, Journal of Physical Chemistry B, 108, pp. 3410-3425.

Popov, V.L., Dimaki, A.V., 2017, Friction in an adhesive tangential contact in the Coulomb-Dugdale approximation, The Journal of Adhesion, 93(14), pp. 1131–1145.

Sahli, R., Pallares, G., Ducottet, C., Ben Ali, I.E., Al Akhrass, S., Guibert, M., Scheibert, J., 2018, Evolution of real contact area under shear and the value of static friction of soft materials, Proceedings of the National Academy of Sciences of the United States of America, 115, pp. 471-476.

Heß, M., Popov, V.L., 2019, Voltage-induced friction with application to electrovibration, Lubricants, 7(12), 102.

Shultz, C.D., Peshkin, M.A., Colgate, J.E., 2018, On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips. 2018 IEEE Haptics Symposium (HAPTICS), pp. 151-157.

Fruhstorfer, H., Abel, U., Garthe, C.-D., Knüttel, A., 2000, Thickness of the stratum corneum of the volar fingertips, Clinical Anatomy, 13, pp. 429–433.

Yamamoto, T., Yamamoto, Y., 1976, Dielectric constant and resistivity of epidermal stratum corneum, Medical & Biological Engineering, 14, pp. 494–500.

Choi, C., Ma, Y., Li, X., Ma, X., Hipwell, Mary, 2021, Finger pad topography beyond fingerprints: understanding the heterogeneity effect of finger topography for human–machine interface modeling, ACS Applied Materials & Interfaces, 13, pp. 3303–3310.

Dzidek, B.M., Adams, M.J., Andrews, J.W., Zhang, Z., Johnson, S.A., 2017, Contact mechanics of the human finger pad under compressive loads, Journal of The Royal Society Interface, 14, 20160935.

Vezzoli, E., Ben Messaoud, W., Nadal, C., Frédéric, G., Amberg, M., Lemaire-Semail, B., Bueno, M.A., 2015, Coupling of ultrasonic vibration and electrovibration for tactile stimulation, European Journal of Electrical Engineering, 17, pp. 377-395.


Refbacks

  • There are currently no refbacks.


ISSN: 0354-2025 (Print)

ISSN: 2335-0164 (Online)

COBISS.SR-ID 98732551

ZDB-ID: 2766459-4