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<table>
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<tr>
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<th colspan="2">Electromechanical relay</th>
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</tr>
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<tr>
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<td style="text-align:center"><img src="Electromechanical-relay_screenshot1.png" width=100%></td>
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<td style="text-align:center"><img src="Electromechanical-relay_screenshot2.png" width=100%></td>
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</tr>
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<tr>
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<th colspan="2">Browse <a href="https://gitlab.onelab.info/doc/models/tree/master/ElectromechanicalRelay/">model files</a></th>
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</tr>
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</table>
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## Quick start
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To run the models, open `relay.pro` with Gmsh.
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## Additional info
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The electromechanical actuator comprises a yoke, two permanent magnets, two
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coils and a mover. The yoke and the mover are made of iron. Eddy currents in
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the magnets and in the laminated yoke and mover are neglected. The permanent
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magnets constitute a magnetic lock that keeps the mover either in the upper or
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lower position tending to diminish the residual airgap. The mover is moved down
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or up by applying a voltage pulse to one of the coils. The commutation is
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facilitated by two springs.
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## References
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1. R. V. Sabariego, J. Gyselinck, C. Geuzaine, P. Dular and W. Legros,
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"Application of the fast multipole method to the 2D finite element-boundary
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element analysis of electromechanical devices", COMPEL: The International
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Journal for Computation and Mathematics in Electrical and Electronic
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Engineering, 22(3):659-673, 2003. http://orbi.ulg.ac.be/handle/2268/22765
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R. V. Sabariego, "The fast multipole method for electromagnetic field
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computation in numerical and physical hybrid systems", Ph.D. thesis,
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University of Li\`ege, 2004. http://hdl.handle.net/2268/2374
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----
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*Models developed by @sabariego.* |