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Design and Optimization of a Spherical Magnetorheological Actuator

Author

Listed:
  • Jakob Vizjak

    (Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroška Cesta 46, 2000 Maribor, Slovenia)

  • Anton Hamler

    (Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroška Cesta 46, 2000 Maribor, Slovenia)

  • Marko Jesenik

    (Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroška Cesta 46, 2000 Maribor, Slovenia)

Abstract

Recently, an increasing number of electromagnetic devices have been using smart fluids. These include ferrofluids, electrorheological fluids, and magnetorheological (MR) fluids. In the paper, magnetorheological fluids are considered for use in a spherical actuator for haptic applications. An approach is presented to the design and optimization of such a device, using finite element method modelling linked with differential evolution (DE). Much consideration was given to the construction of the objective function to be minimized. A novel approach to objective function assembly was used, using reference values based on the model design and created with parameters set to the midpoint values of the selected range. It was found to be a useful strategy when the reference values are unknown. There were four parameters to be optimized. Three of them gravitated towards the boundary value, and the fourth (actuator radius) was somewhere in between. The value of the objective function reached a minimum in the range of actuator radius between 42.9880 mm and 45.0831 mm, which is about a 5% difference in regard to the actuator radius. Three passes of optimization were performed with similar results, proving the robustness of the algorithm.

Suggested Citation

  • Jakob Vizjak & Anton Hamler & Marko Jesenik, 2023. "Design and Optimization of a Spherical Magnetorheological Actuator," Mathematics, MDPI, vol. 11(19), pages 1-23, September.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:19:p:4098-:d:1249405
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    References listed on IDEAS

    as
    1. Jakob Vizjak & Miloš Beković & Marko Jesenik & Anton Hamler, 2021. "Development of a Magnetic Fluid Heating FEM Simulation Model with Coupled Steady State Magnetic and Transient Thermal Calculation," Mathematics, MDPI, vol. 9(20), pages 1-22, October.
    2. Marko Jesenik & Anton Hamler & Mislav Trbušić & Mladen Trlep, 2020. "The Use of Evolutionary Methods for the Determination of a DC Motor and Drive Parameters Based on the Current and Angular Speed Response," Mathematics, MDPI, vol. 8(8), pages 1-37, August.
    3. Marko Jesenik & Marjan Mernik & Mladen Trlep, 2020. "Determination of a Hysteresis Model Parameters with the Use of Different Evolutionary Methods for an Innovative Hysteresis Model," Mathematics, MDPI, vol. 8(2), pages 1-27, February.
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