Dynamic characteristics of a hydraulic amplification mechanism for large displacement actuators systems

Xavier Arouette, Yasuaki Matsumoto, Takeshi Ninomiya, Yoshiyuki Okayama, Norihisa Miki

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We have developed a hydraulic displacement amplification mechanism (HDAM) and studied its dynamic response when combined with a piezoelectric actuator. The HDAM consists of an incompressible fluid sealed in a microcavity by two largely deformable polydimethylsiloxane (PDMS) membranes. The geometry with input and output surfaces having different cross-sectional areas creates amplification. By combining the HDAM with micro-actuators, we can amplify the input displacement generated by the actuators, which is useful for applications requiring large deformation, such as tactile displays. We achieved a mechanism offering up to 18-fold displacement amplification for static actuation and 12-fold for 55 Hz dynamic actuation.

Original languageEnglish
Pages (from-to)2946-2956
Number of pages11
JournalSensors
Volume10
Issue number4
DOIs
Publication statusPublished - 2010 Apr

Fingerprint

Touch
hydraulics
dynamic characteristics
Amplification
Actuators
actuators
Hydraulics
Membranes
actuation
Microcavities
piezoelectric actuators
Piezoelectric actuators
incompressible fluids
Polydimethylsiloxane
dynamic response
Dynamic response
Display devices
baysilon
membranes
Fluids

Keywords

  • Dynamic actuation
  • Hydraulic amplification
  • Liquid encapsulation
  • MEMS
  • Tactile display

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Dynamic characteristics of a hydraulic amplification mechanism for large displacement actuators systems. / Arouette, Xavier; Matsumoto, Yasuaki; Ninomiya, Takeshi; Okayama, Yoshiyuki; Miki, Norihisa.

In: Sensors, Vol. 10, No. 4, 04.2010, p. 2946-2956.

Research output: Contribution to journalArticle

Arouette, Xavier ; Matsumoto, Yasuaki ; Ninomiya, Takeshi ; Okayama, Yoshiyuki ; Miki, Norihisa. / Dynamic characteristics of a hydraulic amplification mechanism for large displacement actuators systems. In: Sensors. 2010 ; Vol. 10, No. 4. pp. 2946-2956.
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