Results 261 to 270 of about 125,093 (294)

Finite element torque modeling for the design of a spherical motor

7th International Conference on Control, Automation, Robotics and Vision, 2002. ICARCV 2002., 2004
This paper presents the method of modeling the torque generated by a variable reluctance spherical motor (VRSM) that presents some attractive possibilities by combining pitch, roll, and yaw motion in a single joint. Unlike prior works on the torque formulation of a VRSM, which were based on a lumped-parameter approach using equivalent magnetic circuits
Raye Abdoulie Sosseh, Kok-Meng Lee
openaire   +1 more source

Localized Electroosmosis (LEO) Induced by Spherical Colloidal Motors

Langmuir, 2014
Experimental data show that the speed of colloidal (catalytic) motors decreases as the size of the motor particles increases. However, previous electrokinetic models have shown that the colloidal motor speed for spheres is independent of size, at least for the case of infinitesimally thin double layers and reaction-limited catalysis.
Tso-Yi, Chiang, Darrell, Velegol
openaire   +2 more sources

A Spherical DC Servo Motor With Three Degrees of Freedom

Journal of Dynamic Systems, Measurement, and Control, 1989
A spherical DC servo motor with three degrees of freedom is proposed. First, the process of generating three-dimensional torque is analyzed to obtain the torque constant matrix. The matrix elements are shown to vary with rotor inclination, and winding currents are shown to interfere with each other.
Kaneko, K., Yamada, I., Itao, K.
openaire   +1 more source

An approach to basic design of the PM-type spherical motor

Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No.01CH37164), 2002
The authors propose a spherical electromagnetic actuator using a surface motor. The main feature of this actuator is the ability to arrange the magnetic poles uniformly by distributing the stator's magnetic poles in triangular lattice. In this paper, we report the fundamental structure of this actuator and the secondary side permanent magnets ...
Daiki Ebihara, Norikazu Katsuyama, Morimasa Kajioka   +2 more
openaire   +1 more source

Multi-degree-of-freedom spherical permanent magnet motors

Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No.01CH37164), 2002
The paper describes the analysis, design and control of two new versions of spherical permanent magnet motor, which are capable of two and three degrees-of-freedom of controlled motion, and have a high specific torque capability. Their magnetic field distribution is established using an analytical technique formulated in spherical coordinates.
Jiabin Wang, Ken Mitchell, Geraint Wyn Jewell, David Howe   +3 more
openaire   +1 more source

A Spherical Planning Based Electrifying Strategy of Permanent Magnet Spherical Motor

Applied Mechanics and Materials, 2015
Permanent Magnet SpherIcal Motor (PMSM) can be applIed on offshore O&M vessels for offshore wInd farms. An electrIfyIng strategy of PMSM Is proposed accordIng to the structure of PMSM wIth 3 layers of stator coIls. A statIc torque model of PMSM Is buIlt In thIs paper. In order to classIfy the statuses of rotor posItIon, spherIcal plannIng on stator
openaire   +1 more source

Spherical Electromagnetic Motor

Journal of the Society of Mechanical Engineers, 2008
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Development of a novel spherical stator multi-DOF ultrasonic motor using in-plane non-axisymmetric mode

Mechanical Systems and Signal Processing, 2020
Weishan Chen, Liang Wang, Yingxiang Liu
exaly  

Spherical induction motors

Journal of the Institution of Electrical Engineers, 1959
openaire   +1 more source

Complementary Orientation Control for Spherical Motors

2024 IEEE 18th International Conference on Control & Automation (ICCA)
Thasnim Mohammed, Xiang Chen
openaire   +1 more source