Friction Reduction Through Ultrasonic Vibration Part 2: Experimental Evaluation of Intermittent Contact and Squeeze Film Levitation

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Friction Reduction Through Ultrasonic Vibration Part 2: Experimental Evaluation of Intermittent Contact and Squeeze Film Levitation. / Sednaoui, Thomas; Vezzoli, Eric; Dzidek, Brygida Maria; Lemaire-semail, Betty; Chappaz, Cedrick; Adams, Michael.

In: IEEE Transactions on Haptics, Vol. 10, No. 2, 17.02.2017, p. 208-216.

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Sednaoui, Thomas ; Vezzoli, Eric ; Dzidek, Brygida Maria ; Lemaire-semail, Betty ; Chappaz, Cedrick ; Adams, Michael. / Friction Reduction Through Ultrasonic Vibration Part 2: Experimental Evaluation of Intermittent Contact and Squeeze Film Levitation. In: IEEE Transactions on Haptics. 2017 ; Vol. 10, No. 2. pp. 208-216.

Bibtex

@article{02a086c353734afc90c9cf43bfeea579,
title = "Friction Reduction Through Ultrasonic Vibration Part 2:: Experimental Evaluation of Intermittent Contact and Squeeze Film Levitation",
abstract = "In part 1 of the current study of haptic displays, a finite element (FE) model of a finger exploring a plate vibrating out-of-plane at ultrasonic frequencies was developed as well as a spring-frictional slider model. It was concluded that the reduction in friction induced by the vibrations could be ascribed to ratchet mechanism as a result of intermittent contact. The relative reduction in friction calculated using the FE model could be superimposed onto an exponential function of a dimensionless group defined from relevant parameters. The current paper presents measurements of the reduction in friction, involving real and artificial fingertips, as a function of the vibrational amplitude and frequency, the applied normal force and the exploration velocity. The results are reasonablysimilar to the calculated FE values and also could be superimposed using the exponential function provided that the intermittent contact was sufficiently well developed, which for the frequencies examined correspond to a minimum vibrational amplitude of 1 μm P-P. It was observed that the reduction in friction depends on the exploration velocity and is independent of the applied normal force and ambient air pressure, which is not consistent with the squeeze film mechanism. However, the modelling did not incorporate the influence of air and the effect of ambient pressure was measured under a limited range of conditions, Thus squeeze film levitation may be synergistic with the mechanical interaction.",
keywords = "friction , acoustics , vibration measurement , force , vibrations , probes , frequency measurement",
author = "Thomas Sednaoui and Eric Vezzoli and Dzidek, {Brygida Maria} and Betty Lemaire-semail and Cedrick Chappaz and Michael Adams",
year = "2017",
month = feb,
day = "17",
doi = "10.1109/TOH.2017.2671376",
language = "English",
volume = "10",
pages = "208--216",
journal = "IEEE Transactions on Haptics",
issn = "1939-1412",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
number = "2",

}

RIS

TY - JOUR

T1 - Friction Reduction Through Ultrasonic Vibration Part 2:

T2 - Experimental Evaluation of Intermittent Contact and Squeeze Film Levitation

AU - Sednaoui, Thomas

AU - Vezzoli, Eric

AU - Dzidek, Brygida Maria

AU - Lemaire-semail, Betty

AU - Chappaz, Cedrick

AU - Adams, Michael

PY - 2017/2/17

Y1 - 2017/2/17

N2 - In part 1 of the current study of haptic displays, a finite element (FE) model of a finger exploring a plate vibrating out-of-plane at ultrasonic frequencies was developed as well as a spring-frictional slider model. It was concluded that the reduction in friction induced by the vibrations could be ascribed to ratchet mechanism as a result of intermittent contact. The relative reduction in friction calculated using the FE model could be superimposed onto an exponential function of a dimensionless group defined from relevant parameters. The current paper presents measurements of the reduction in friction, involving real and artificial fingertips, as a function of the vibrational amplitude and frequency, the applied normal force and the exploration velocity. The results are reasonablysimilar to the calculated FE values and also could be superimposed using the exponential function provided that the intermittent contact was sufficiently well developed, which for the frequencies examined correspond to a minimum vibrational amplitude of 1 μm P-P. It was observed that the reduction in friction depends on the exploration velocity and is independent of the applied normal force and ambient air pressure, which is not consistent with the squeeze film mechanism. However, the modelling did not incorporate the influence of air and the effect of ambient pressure was measured under a limited range of conditions, Thus squeeze film levitation may be synergistic with the mechanical interaction.

AB - In part 1 of the current study of haptic displays, a finite element (FE) model of a finger exploring a plate vibrating out-of-plane at ultrasonic frequencies was developed as well as a spring-frictional slider model. It was concluded that the reduction in friction induced by the vibrations could be ascribed to ratchet mechanism as a result of intermittent contact. The relative reduction in friction calculated using the FE model could be superimposed onto an exponential function of a dimensionless group defined from relevant parameters. The current paper presents measurements of the reduction in friction, involving real and artificial fingertips, as a function of the vibrational amplitude and frequency, the applied normal force and the exploration velocity. The results are reasonablysimilar to the calculated FE values and also could be superimposed using the exponential function provided that the intermittent contact was sufficiently well developed, which for the frequencies examined correspond to a minimum vibrational amplitude of 1 μm P-P. It was observed that the reduction in friction depends on the exploration velocity and is independent of the applied normal force and ambient air pressure, which is not consistent with the squeeze film mechanism. However, the modelling did not incorporate the influence of air and the effect of ambient pressure was measured under a limited range of conditions, Thus squeeze film levitation may be synergistic with the mechanical interaction.

KW - friction

KW - acoustics

KW - vibration measurement

KW - force

KW - vibrations

KW - probes

KW - frequency measurement

U2 - 10.1109/TOH.2017.2671376

DO - 10.1109/TOH.2017.2671376

M3 - Article

VL - 10

SP - 208

EP - 216

JO - IEEE Transactions on Haptics

JF - IEEE Transactions on Haptics

SN - 1939-1412

IS - 2

ER -