Next Article in Journal
Experimental Validation of a Compound Control Scheme for a Two-Axis Inertially Stabilized Platform with Multi-Sensors in an Unmanned Helicopter-Based Airborne Power Line Inspection System
Next Article in Special Issue
A New Linear Oscillatory Actuator with Variable Characteristics Using Two Sets of Coils
Previous Article in Journal
Pressure Mapping Mat for Tele-Home Care Applications
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(3), 360; doi:10.3390/s16030360

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
Received: 31 December 2015 / Revised: 9 February 2016 / Accepted: 19 February 2016 / Published: 11 March 2016
View Full-Text   |   Download PDF [7017 KB, uploaded 11 March 2016]   |  

Abstract

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 design methodology; dual quasi-Halbach actuator; linear actuators design; moving-coil actuator; parametric analysis; thermal-electromagnetic coupling; tubular actuators
Figures

Figure 1

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. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

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.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top