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EnglishIPMCs are electroactive polymers which can be used both as sensors and as actuators. The modelling of IPMC transducers is an open issue relevant to the development of effective applications. A multiphysics model of IPMC actuators is here implemented. It integrates the description of the electrical, mechanical, chemical and thermal coupled physics domains in a unique solution and, as a novelty, it allows the study in the frequency domain and the comparison with experimental response of the IPMC device. The IPMC white box modelling requires several macro- and microscopic parameters, not always accessible via theoretical approaches or experimentation. This work presents a new model optimization procedure which integrates Nelder-Mead simplex method with the COMSOL Multiphysics® models. The proposed procedure uses experimental data and fits model simulations to IPMC real behavior for microscopic parameters’ identification. The model is developed for IPMCs with ethylene-glycol as the solvent
| Titolo: | An optimized frequency-dependent multiphysics model for an ionic polymer-metal composite actuator with ethylene glycol as the solvent | |
| Autori interni: | ||
| Data di pubblicazione: | 2013 | |
| Rivista: | ||
| Abstract: | IPMCs are electroactive polymers which can be used both as sensors and as actuators. The modelling of IPMC transducers is an open issue relevant to the development of effective applications. A multiphysics model of IPMC actuators is here implemented. It integrates the description of the electrical, mechanical, chemical and thermal coupled physics domains in a unique solution and, as a novelty, it allows the study in the frequency domain and the comparison with experimental response of the IPMC device. The IPMC white box modelling requires several macro- and microscopic parameters, not always accessible via theoretical approaches or experimentation. This work presents a new model optimization procedure which integrates Nelder-Mead simplex method with the COMSOL Multiphysics® models. The proposed procedure uses experimental data and fits model simulations to IPMC real behavior for microscopic parameters’ identification. The model is developed for IPMCs with ethylene-glycol as the solvent | |
| Handle: | http://hdl.handle.net/20.500.11769/16503 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/20.500.11769/16503
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