A thin membrane artificial muscle rotary motor

Iain A. Anderson, Thom Hale, Todd Gisby, Tokushu Inamura, Thomas McKay, Benjamin O'Brien, Scott Walbran, Emilio P. Calius

研究成果: Contribution to journalArticle査読

70 被引用数 (Scopus)

抄録

Desirable rotary motor attributes for robotics include the ability to develop high torque in a low mass body and to generate peak power at low rotational speeds. Electro-active polymer artificial muscles offer promise as actuator elements for robotic motors. A promising artificial muscle technology for use as a driving mechanism for rotary motion is the dielectric elastomer actuator (DEA). We present a membrane DEA motor in which phased actuation of electroded sectors of the motor membrane impart orbital motion to a central drive that turns a rotor. The motor is inherently scalable, flexible, flat, silent in operation, amenable to deposition-based manufacturing approaches, and uses relatively inexpensive materials. As a membrane it can also form part of the skin of a robot. We have investigated the torque and power of stacked membrane layers. Specific power and torque ratios when calculated∈ using∈active∈membrane∈mass∈only∈were∈20.8 W/kg and 4.1 Nm/kg, respectively. These numbers compare favorably with a commercially available stepper motor. Multi-membrane fabrication substantially boosts torque and power and increases the active mass of membrane relative to supporting framework. Through finite element modeling, we show the mechanisms governing the maximum torque the device can generate and how the motor can be improved.

本文言語英語
ページ(範囲)75-83
ページ数9
ジャーナルApplied Physics A: Materials Science and Processing
98
1
DOI
出版ステータス出版済み - 1 1 2010
外部発表はい

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 材料科学(全般)

フィンガープリント

「A thin membrane artificial muscle rotary motor」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル