6
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      A Multi-Module Electrodynamic Exciter with a Variable Pole-Arc Ratio Disk Halbach Array for a High-Bandwidth Dynamic Torsional Stiffness Test

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          In this paper, a multi-module electrodynamic exciter based on moving-magnet disk voice coil motor is presented to meet the demands of high torque and high bandwidth in a dynamic torsional stiffness test. A variable pole-arc ratio disk Halbach array (VPAR-DHA) is proposed, so that both high torque density and low rotor inertia can be obtained through enhancing the magnetic field in the working range. The analytical quasi-3-D model of VPAR-DHA was set up by using the harmonic function method, with the consideration of end-effects by a correction function. Electromagnetic structure optimization was carried out with the analytical model, and verified by 3-D finite-element (FEM) results. The proposed design was experimentally tested and verified with a prototype that achieved a peak dynamic torque output of 40 Nm at a frequency of 120 Hz, and a stroke of ±1°. The proposed method can also be easily extended to satisfy various demands of dynamic torsional stiffness test.

          Related collections

          Most cited references19

          • Record: found
          • Abstract: not found
          • Article: not found

          Halbach permanent magnet machines and applications: a review

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Modeling of Axial Flux Permanent-Magnet Machines

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Quasi-3-D Analytical Modeling of the Magnetic Field of an Axial Flux Permanent-Magnet Synchronous Machine

                Bookmark

                Author and article information

                Journal
                Sensors (Basel)
                Sensors (Basel)
                sensors
                Sensors (Basel, Switzerland)
                MDPI
                1424-8220
                13 March 2019
                March 2019
                : 19
                : 6
                : 1272
                Affiliations
                State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; bigsquare@ 123456hust.edu.cn (F.Y.); zenglizhan@ 123456hust.edu.cn (L.Z.); chenxd@ 123456hust.edu.cn (X.C.); D201177131@ 123456hust.edu.cn (C.L.); ding_xj@ 123456hust.edu.cn (X.D.)
                Author notes
                [* ]Correspondence: mexinluo@ 123456hust.edu.cn ; Tel.: +86-27-8755-6594
                Author information
                https://orcid.org/0000-0002-7864-1874
                https://orcid.org/0000-0001-6999-1242
                Article
                sensors-19-01272
                10.3390/s19061272
                6470660
                30871225
                4159a072-e651-41c3-80df-5e6f2b05b49d
                © 2019 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 30 January 2019
                : 06 March 2019
                Categories
                Article

                Biomedical engineering
                dynamic torsional stiffness test,electrodynamic exciter,disk voice coil motor,halbach array,variable pole-arc ratio,quasi-3-d model

                Comments

                Comment on this article