Optimal design of robust piezoelectric microgrippers undergoing large displacements
| Autor: | D. Ruiz, Ole Sigmund |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Optimal design
Unimorph Control and Optimization Computer science Large displacements 02 engineering and technology Bending Lamination (topology) 01 natural sciences Electrode profile 0203 mechanical engineering Topology optimization Sensitivity (control systems) 0101 mathematics business.industry Structural engineering Energy interpolation Computer Graphics and Computer-Aided Design Computer Science Applications 010101 applied mathematics 020303 mechanical engineering & transports Control and Systems Engineering Grippers business Engineering design process Piezoelectric effect Software |
| Zdroj: | Ruiz, D & Sigmund, O 2018, ' Optimal design of robust piezoelectric microgrippers undergoing large displacements ', Structural and Multidisciplinary Optimization, vol. 75, pp. 71-82 . https://doi.org/10.1007/s00158-017-1863-5 |
| ISSN: | 1615-1488 1615-147X |
| DOI: | 10.1007/s00158-017-1863-5 |
| Popis: | Topology optimization combined with optimal design of electrodes is used to design piezoelectric microgrippers. Fabrication at micro-scale presents an important challenge: due to non-symmetrical lamination of the structures, out-of-plane bending spoils the behaviour of the grippers. Suppression of this out-of plane deformation is the main novelty introduced in this work. In addition, a robust approach is used to control length scale in the whole domain and to reduce sensitivity of the design to small fabrication errors. Geometrically non-linear modelling is used for the in-plane deformations whereas out-of-plane motions are modelled by a linear, un-coupled plate model to save computational time. Model and resulting designs are validated by subsequent 3D geometrically non-linear modelling. |
| Databáze: | OpenAIRE |
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