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http://dx.doi.org/10.7234/composres.2015.28.6.383

State Observer Based Modeling of Voltage Generation Characteristic of Ionic Polymer Metal Composite  

Lee, Hyung-Ki (Department of Control and Instrumentation Engineering, Pukyong National University)
Park, Kiwon (Department of Green Automobile Engineering, Youngsan University)
Kim, Myungsoo (Department of Mechanical Design Engineering, Youngsan University)
Publication Information
Composites Research / v.28, no.6, 2015 , pp. 383-388 More about this Journal
Abstract
Ionic Polymer-Metal Composite (IPMC) consisting of soft membrane plated by platinum electrode layers on both surfaces generates electric energy when subjected to various mechanical stimuli. The paper proposes a circuit model that describes the physical composition of IPMC to predict the voltage generation characteristic corresponding to bending motion. The parameter values in the model are identified to minimize the RMS error between the real and simulated outputs. Following the design of IPMC circuit model, the state observer of the model is designed by using pole placement technique which improves the model accuracy. State observer design technique is also applied to find the inverse model which estimates the input bending angles from the output voltage data. The results show that the inverse model estimates input bending angles fairly well enough for the further applications of IPMC not only as an energy harvester but also as a bending sensor.
Keywords
Ionic Polymer-Metal Composite; Circuit Model; Parameter Estimation; State Observer Design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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