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 journalArticlepeer-review


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
JournalTransactions of the Japan Society of Mechanical Engineers Series C
Issue number538
Publication statusPublished - 1991
Externally publishedYes


  • Actuator
  • Biomimicking
  • Electrostatics
  • Mechanism
  • Mechatronics
  • Robotics
  • Skeletal Muscle

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Theoretical Analysis of an Electrostatic Linear Actuator Developed as a Biomimicking Skeletal Muscle'. Together they form a unique fingerprint.

Cite this