Optimal design of robust piezoelectric unimorph microgrippers
Autor: | José C. Bellido, Ole Sigmund, Alex Díaz-Molina, Alberto Donoso, José Luis Sánchez-Rojas, D. Ruiz |
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Rok vydání: | 2018 |
Předmět: |
Optimal design
Piezoelectric unimorph actuators Engineering Point of interest business.industry Applied Mathematics Numerical analysis Robust formulation Topology optimization Mechanical engineering 02 engineering and technology 01 natural sciences Piezoelectricity Design for manufacturability 010101 applied mathematics 020303 mechanical engineering & transports 0203 mechanical engineering Modeling and Simulation Unimorph Electronic engineering 0101 mathematics business Actuator |
Zdroj: | Ruiz, D, Díaz-Molina, A, Sigmund, O, Donoso, A, Carlos Bellido, J & Sánchez-Rojas, J L 2018, ' Optimal design of robust piezoelectric unimorph microgrippers ', Applied Mathematical Modelling, vol. 55, pp. 1-12 . https://doi.org/10.1016/j.apm.2017.10.024 |
ISSN: | 0307-904X |
DOI: | 10.1016/j.apm.2017.10.024 |
Popis: | Topology optimization can be used to design piezoelectric actuators by simultaneous design of host structure and polarization profile. Subsequent micro-scale fabrication leads us to overcome important manufacturing limitations: difficulties in placing a piezoelectric layer on both top and bottom of the host layer. Unsymmetrical layer placement makes the actuator bend, spoiling the predicted performance of the device. The aim of this work is to maximize the in-plane displacement of a microgripper-type actuator while out-of-plane displacement at some points of interest is suppressed. This last issue is the main novelty introduced in this work, and the emphasis is placed on the modelling and its applicability rather than numerical methods. In addition, a robust formulation of the problem has been used in order to ensure minimum length scale in the optimal designs, which it is crucial from the manufacturability point of view. |
Databáze: | OpenAIRE |
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