Design Methodology of a Dual-Halbach Array Linear Actuator with Thermal-Electromagnetic Coupling
1
Post-Graduate Program in Electrical Engineering, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha 103, Porto Alegre, RS 90035-190, Brazil
2
Department of Mechanical Engineering, Federal University of Rio Grande do Sul, Rua Sarmento Leite 425, Porto Alegre, RS 90050-170, Brazil
3
Technology Centre, Federal University of Santa Maria, Av. Roraima 1000, Santa Maria, RS 97105-900, Brazil
*
Author to whom correspondence should be addressed.
Academic Editors: Slawomir Wiak and Manuel Pineda Sanchez
Sensors 2016, 16(3), 360; https://doi.org/10.3390/s16030360
Received: 31 December 2015
/
Revised: 9 February 2016
/
Accepted: 19 February 2016
/
Published: 11 March 2016
(This article belongs to the Special Issue Components of Mechatronics and Micro-Electro-Mechanical-Systems (MEMS) – Modeling and Design)
This paper proposes a design methodology for linear actuators, considering thermal and electromagnetic coupling with geometrical and temperature constraints, that maximizes force density and minimizes force ripple. The method allows defining an actuator for given specifications in a step-by-step way so that requirements are met and the temperature within the device is maintained under or equal to its maximum allowed for continuous operation. According to the proposed method, the electromagnetic and thermal models are built with quasi-static parametric finite element models. The methodology was successfully applied to the design of a linear cylindrical actuator with a dual quasi-Halbach array of permanent magnets and a moving-coil. The actuator can produce an axial force of 120 N and a stroke of 80 mm. The paper also presents a comparative analysis between results obtained considering only an electromagnetic model and the thermal-electromagnetic coupled model. This comparison shows that the final designs for both cases differ significantly, especially regarding its active volume and its electrical and magnetic loading. Although in this paper the methodology was employed to design a specific actuator, its structure can be used to design a wide range of linear devices if the parametric models are adjusted for each particular actuator.
View Full-Text
Keywords:
design methodology; dual quasi-Halbach actuator; linear actuators design; moving-coil actuator; parametric analysis; thermal-electromagnetic coupling; tubular actuators
▼
Show Figures
Graphical abstract
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Eckert, P.R.; Flores Filho, A.F.; Perondi, E.; Ferri, J.; Goltz, E. Design Methodology of a Dual-Halbach Array Linear Actuator with Thermal-Electromagnetic Coupling. Sensors 2016, 16, 360. https://doi.org/10.3390/s16030360
AMA Style
Eckert PR, Flores Filho AF, Perondi E, Ferri J, Goltz E. Design Methodology of a Dual-Halbach Array Linear Actuator with Thermal-Electromagnetic Coupling. Sensors. 2016; 16(3):360. https://doi.org/10.3390/s16030360
Chicago/Turabian StyleEckert, Paulo R., Aly F. Flores Filho, Eduardo Perondi, Jeferson Ferri, and Evandro Goltz. 2016. "Design Methodology of a Dual-Halbach Array Linear Actuator with Thermal-Electromagnetic Coupling" Sensors 16, no. 3: 360. https://doi.org/10.3390/s16030360
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
