Shape design optimization of interdigitated electrodes for maximal electro-adhesion forces
| Autor: | Jae Hyun Kim, Se-Hyeon Kang, Seonho Cho |
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| Rok vydání: | 2020 |
| Předmět: |
Charge conservation
Control and Optimization Materials science 0211 other engineering and technologies 02 engineering and technology Mechanics Electrostatic induction Electrostatics Computer Graphics and Computer-Aided Design Finite element method Computer Science Applications Polarization density 020303 mechanical engineering & transports 0203 mechanical engineering Control and Systems Engineering Electric field Air gap (plumbing) Electrical conductor Software 021106 design practice & management |
| Zdroj: | Structural and Multidisciplinary Optimization. 61:1843-1855 |
| ISSN: | 1615-1488 1615-147X |
| Popis: | We present a shape design optimization method for interdigitated electrodes in an electro-adhesive device. In the finite element analysis of electrostatics using linear basis functions, a finite node displacement method is used for the accurate electro-adhesive force by integrating the electric field along the boundary surface. The floating potential boundary for conductive objects is handled by a charge conservation law in the electrostatic analysis as well as the shape design sensitivity analysis. In numerical examples, the structural shape of interdigitated electrodes is optimized to maximize the electro-adhesion force per unit area for both conductive and non-conductive objects. It turns out that the electro-adhesive force is mainly induced by an electrostatic induction for conductive objects and by an electric polarization for non-conductive ones. There is an optimal ratio of electrode width and air gap thickness for non-conductive objects but no limit for conductive objects. |
| Databáze: | OpenAIRE |
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