| Title: | Design and optimization of a spherical magnetorheological actuator |
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| Authors: | ID Vizjak, Jakob (Author)
ID Hamler, Anton (Author)
ID Jesenik, Marko (Author) |
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| Files: |  mathematics-11-04098.pdf (4,69 MB)
MD5: 591D4BFEC6B3F496B46CA89B462A38B7
 https://www.mdpi.com/2227-7390/11/19/4098
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FERI - Faculty of Electrical Engineering and Computer Science
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| 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. |
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| Keywords: | magnetorheological fluid, finite element method, FEM, optimization, differntial evolution, DE, actuator |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 18.08.2023 |
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| Article acceptance date: | 26.09.2023 |
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| Publication date: | 27.09.2023 |
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| Publisher: | MDPI |
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| Year of publishing: | 2023 |
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| Number of pages: | 23 str. |
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| Numbering: | Vol. 11, no. 19, [article no.] 4098 |
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| PID: | 20.500.12556/DKUM-88751  |
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| UDC: | 621.3 |
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| ISSN on article: | 2227-7390 |
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| COBISS.SI-ID: | 166722819 |
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| DOI: | 10.3390/math11194098 |
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| Publication date in DKUM: | 22.05.2024 |
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| Views: | 173 |
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| Downloads: | 11 |
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| Metadata: |     |
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| Categories: | Misc.
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