Authors: Tomoaki Yano
Publish Date: 2010/03/02
Volume: 24, Issue: 1, Pages: 33-36
Abstract
The simulation results of a novel stepping motor based on a pair of a regular hexahedron and a regular octahedron call “68 spherical stepping motor” afterward are presented The 3D electromagnet and motion coupled simulation program “Magnet 6” is used for the simulation As the conditions of simulation the excitation current and frequency is 1 A and 53 Hz respectively Three phase sinusoidal excitation currents are applied to two pairs of three coils of the stator individually at 120 deg intervals The simulation results show that the rotor rotates along the rotating magnetic field and the output torque is 004 Nm The simulation results prove the correctness of the 6–8 spherical motor driving method The developed 6–8 spherical stepping motor is aircore type without back yoke for avoiding the cogging torque When using iron core with back yoke the proposed motor will be a hightorque spherical motor The 6–8 spherical stepping motor was tested and the experimental results were compared with the simulation results Then the simulation program was used for optimum design of the 6–8 spherical stepping motorTomoaki Yano received his BS degree in Electrical Engineering from Kobe University Japan in 1976 He then received his MS degree from Kobe University in 1979 Mr Yano is currently a senior researcher at the National Institute of Advanced Industrial Science and Technology in Tsukuba Japan He serves as an Editor of the Journal of Advanced Mechanical Design Systems and Manufacturing Mr Yano’s research interests include spherical motor
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