Oscillation of a tilted circular pad on a droplet for the self-alignment process

Masayuki Kaneda; Michinori Yamamoto; Koichi Nakaso; Tsuyoshi Yamamoto; Jun Fukai

doi:10.1016/j.precisioneng.2006.03.005

Oscillation of a tilted circular pad on a droplet for the self-alignment process

Masayuki Kaneda, Michinori Yamamoto, Koichi Nakaso, Tsuyoshi Yamamoto, Jun Fukai

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

The seesaw-oscillation of a small circular pad on a single droplet was studied both numerically and experimentally. The circular pad with a diameter of 2.0-3.8 mm onto a water or glycerol droplet with a volume of 1-10 μL, and a bottom substrate with a smaller diameter than that of the pad were used in the experiment. The pad was then tilted and then the tilting fixture was quickly removed. The pad alternately oscillated and then finally stabilized in a horizontal position. The numerical model considering the surface tension and the viscous force of the droplet was developed and calculated using the same configurations as those in the experiment. The experimental and numerical data showed good agreement not only in terms of the oscillating frequency and damping ratio but the transient motion of the circular pad and instantaneous droplet surface shape.

Original language	English
Pages (from-to)	177-184
Number of pages	8
Journal	Precision Engineering
Volume	31
Issue number	2
DOIs	https://doi.org/10.1016/j.precisioneng.2006.03.005
Publication status	Published - Apr 1 2007
Externally published	Yes

Keywords

Droplet
Inclined pad
Oscillation
Self-alignment
Surface tension force
Viscous force

ASJC Scopus subject areas

Engineering(all)

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10.1016/j.precisioneng.2006.03.005

Cite this

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title = "Oscillation of a tilted circular pad on a droplet for the self-alignment process",

abstract = "The seesaw-oscillation of a small circular pad on a single droplet was studied both numerically and experimentally. The circular pad with a diameter of 2.0-3.8 mm onto a water or glycerol droplet with a volume of 1-10 μL, and a bottom substrate with a smaller diameter than that of the pad were used in the experiment. The pad was then tilted and then the tilting fixture was quickly removed. The pad alternately oscillated and then finally stabilized in a horizontal position. The numerical model considering the surface tension and the viscous force of the droplet was developed and calculated using the same configurations as those in the experiment. The experimental and numerical data showed good agreement not only in terms of the oscillating frequency and damping ratio but the transient motion of the circular pad and instantaneous droplet surface shape.",

keywords = "Droplet, Inclined pad, Oscillation, Self-alignment, Surface tension force, Viscous force",

author = "Masayuki Kaneda and Michinori Yamamoto and Koichi Nakaso and Tsuyoshi Yamamoto and Jun Fukai",

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T1 - Oscillation of a tilted circular pad on a droplet for the self-alignment process

AU - Kaneda, Masayuki

AU - Yamamoto, Michinori

AU - Nakaso, Koichi

AU - Yamamoto, Tsuyoshi

AU - Fukai, Jun

PY - 2007/4/1

Y1 - 2007/4/1

N2 - The seesaw-oscillation of a small circular pad on a single droplet was studied both numerically and experimentally. The circular pad with a diameter of 2.0-3.8 mm onto a water or glycerol droplet with a volume of 1-10 μL, and a bottom substrate with a smaller diameter than that of the pad were used in the experiment. The pad was then tilted and then the tilting fixture was quickly removed. The pad alternately oscillated and then finally stabilized in a horizontal position. The numerical model considering the surface tension and the viscous force of the droplet was developed and calculated using the same configurations as those in the experiment. The experimental and numerical data showed good agreement not only in terms of the oscillating frequency and damping ratio but the transient motion of the circular pad and instantaneous droplet surface shape.

AB - The seesaw-oscillation of a small circular pad on a single droplet was studied both numerically and experimentally. The circular pad with a diameter of 2.0-3.8 mm onto a water or glycerol droplet with a volume of 1-10 μL, and a bottom substrate with a smaller diameter than that of the pad were used in the experiment. The pad was then tilted and then the tilting fixture was quickly removed. The pad alternately oscillated and then finally stabilized in a horizontal position. The numerical model considering the surface tension and the viscous force of the droplet was developed and calculated using the same configurations as those in the experiment. The experimental and numerical data showed good agreement not only in terms of the oscillating frequency and damping ratio but the transient motion of the circular pad and instantaneous droplet surface shape.

KW - Droplet

KW - Inclined pad

KW - Oscillation

KW - Self-alignment

KW - Surface tension force

KW - Viscous force

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Oscillation of a tilted circular pad on a droplet for the self-alignment process

Abstract

Keywords

ASJC Scopus subject areas

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