Rotor Design Optimization for a Reaction Sphere Actuator

Rossini, Leopoldo; Mingard, Stefan; Boletis, Alexis; Forzani, Eugenio; Onillon, E.; Perriard, Yves

doi:10.1109/tia.2013.2282660

Cited by 43 publications

(24 citation statements)

References 18 publications

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“…Analytical force and torque models for this actuator are developed and confirmed through finite-element modeling [31] and experimental investigations [32][33][34]. Also, their studies examine optimal stator sensor placement [31], rotor design optimization [35], back-EMF modeling [30], and eddy current losses [36,37].…”

Section: Synchronous Spherical Actuatorsmentioning

confidence: 99%

Spherical Magnetic Dipole Actuator for Spacecraft Attitude Control

Chabot

2016

Journal of Guidance, Control, and Dynamics

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DateThe final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. issues. Additionally, a dual actuator system is investigated to provide control redundancy, which is desirable in many missions. Finally, the single actuator system is compared to a cluster of three reaction wheels, illustrating how this device can provide mass, volume, and power savings.

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Section: Synchronous Spherical Actuatorsmentioning

confidence: 99%

Spherical Magnetic Dipole Actuator for Spacecraft Attitude Control

Chabot

2016

Journal of Guidance, Control, and Dynamics

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“…However, the first studies on the spherical movement of the axis of an electric motor date back to the 1950s with the works of Williams et al [9][10][11] and Haeussermann et al [12,13]. Since then, several interesting proposals have emerged [14][15][16][17], but the published designs are difficult to reproduce to verify the achieved results [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Current requirements encompasses basically an optimized construction process, simple and accurate positioning control system, large surface of motion, and high torque in the moving axis [15,[25][26][27][28][29]. The possible uses for this type of motor are difficult to list, but in the literature it is possible to find applications in microsatellite control, 3D camera systems (e.g., for simulations of the ballistic movements of the human eye), prosthetics systems for wrists and joints, and in many industrial assembly tools [7,8,16,22,[30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Design and Control of a Three-Coil Permanent Magnet Spherical Motor

et al. 2018

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Abstract:The permanent magnet (PM) spherical motor has been subject to growing interest from the scientific community due to its potential for applications in distinct areas, particularly in robotics, prosthetics, satellite control, sensors or camera systems. Motivated by this movement, the current work presents all the steps for the efficient design and construction of a spherical motor model, using compound deposition technology with the aid of a 3D printer. Furthermore, we report comprehensive studies on the accuracy of the positioning system of the proposed motor using only three stator coils, which jointly act to move the rotor axis toward any point in the hemisphere. Unmodeled nonlinear phenomena, such as friction, impair accurate positioning of the motor actuator, but this is solved by means of a visual servo control system, which allows the user to collect input-output data to train an artificial neural network model. Details on the construction of the proposed motor are reported, in addition to the numerical results of the positioning control in tracking a desired trajectory.

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“…Although ultrasonic and piezoelectric spherical drives have been developed [12][13][14], electromagnetic devices are the most common and have attracted the attention of several research groups and industries throughout the world [15][16][17][18][19][20][21][22][23][24]. A literature review of these kind of actuators including their architectures and working principle can be found, for instance, in [11,25]. As it will be seen throughout this article, although aiming at a different application, the study of electromagnetic modeling and control aspects of the proposed reaction sphere shares many challenges and related techniques with the spherical actuator literature.…”

Section: Introductionmentioning

confidence: 99%