Theoretical analysis of an electrostatic linear actuator developed as a biomimicking skeletal muscle

Nobuyuki Kabei, Tosiyuki Miyazaki, Hiroshi Kurata, Motoki Ogasawara, Tomohiro Murayama, Kazuo Nagatake, Kiichi Tsuchiya

Research output: Contribution to journalArticle

Abstract

Recently Yano proposed a new theory of muscle contraction, termed the electrostatic linear actuator model. Base on this theory, we developed an electrostatic linear actuator as a biomimicking skeletal muscle. The fundamental actuator unit consists of a parallel plate capacitor and a slider made of dielectric material. Based on this model, we derived the 70 theoretical formula for the thrust of the actuator. This formula revealed the following facts: The thrust can be maintained constant when the supply voltage is kept constant, and can be remarkably increased by optimizing the dielectric constant of the fluid which fills the space of the capacitor. Using this formula, we designed a simple practical model expected to generate the thrust of 10 mN with the stroke of 10 mm. The surface area of this actuator was 1 cm2.

Original languageEnglish
Pages (from-to)1924-1929
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume57
Issue number538
Publication statusPublished - 1991 Jun

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Electrostatic actuators
Linear actuators
Muscle
Actuators
Capacitors
Permittivity
Fluids
Electric potential

ASJC Scopus subject areas

  • Mechanical Engineering

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Theoretical analysis of an electrostatic linear actuator developed as a biomimicking skeletal muscle. / Kabei, Nobuyuki; Miyazaki, Tosiyuki; Kurata, Hiroshi; Ogasawara, Motoki; Murayama, Tomohiro; Nagatake, Kazuo; Tsuchiya, Kiichi.

In: Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 57, No. 538, 06.1991, p. 1924-1929.

Research output: Contribution to journalArticle

Kabei, Nobuyuki ; Miyazaki, Tosiyuki ; Kurata, Hiroshi ; Ogasawara, Motoki ; Murayama, Tomohiro ; Nagatake, Kazuo ; Tsuchiya, Kiichi. / Theoretical analysis of an electrostatic linear actuator developed as a biomimicking skeletal muscle. In: Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 1991 ; Vol. 57, No. 538. pp. 1924-1929.
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