J113011 Rotation characteristics of a 14-12 spherical stepping motor

Sasaki, Ryo; Gofuku, Akio; Yano, Tomoaki; Shibata, Mitsuhiko

doi:10.1299/jsmemecj.2012._j113011-1

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“…A five-phase AC power supply and a driver circuit were also developed to drive the 14-12 spherical motor. The theoretical relation between its rotation frequency and the frequency of five-phase AC was confirmed experimentally [8]. The rotation torque for one of two kinds of rotation axes (Axis 2) was also evaluated [8] although the electro-magnets for two of four layers were not installed.…”

Section: Introductionmentioning

confidence: 92%

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Basic experimental results of a 14-12 spherical motor

Gofuku

Sasaki

Yano

et al. 2012

International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion

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Spherical motors have been studied widely because they have several advantageous features and are applicable to driving mechanisms of holonomic mobile robots, joints of robots, and so on. This study develops a 14-12 spherical motor and evaluates cogging torque and rotation torque for the rotation around one of two kinds of rotation axes. This paper describes the structure of the developed 14-12 spherical motor, working principle of rotation by five-phase alternative current (AC), and some evaluation results of rotation performance. The evaluation results of rotation torque exhibit the applicability of the 14-12 spherical motor.

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Section: Introductionmentioning

confidence: 92%

“…The authors selected truncated octahedron and regular dodecahedron as a combination of solid bodies from the group of spherical motors having large rotation torque and developed a spherical motor called 14-12 spherical motor [7,8]. The motor rotates around two kinds of axes (totally six axes).…”

Section: Introductionmentioning

confidence: 99%