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Abstract

An ion polymer metal composite (IPMC) is an electro-active polymer that bends in response to a small applied electrical field as a result of mobility of cations in the polymer network and vice versa. This article presents a novel accurate nonlinear black-box model (NBBM) for estimating the bending behavior of IPMC actuators. The NBBM is a combination of two advanced designs which are a general multi-layer perceptron neural network (GMLPNN) and a self-adjustable learning mechanism (SALM). Here, the GMLPNN is constructed with an ability to auto-adjust its structure based on its characteristic vector, while the SALM is built to take part in training the GMLPNN decisive parameters. For the model verification, an IPMC actuator is set up to investigate the IPMC characteristics as well as to generate training data. Next, the advanced NBBM model for the IPMC system is performed with suitable inputs to estimate the IPMC tip displacement. Finally, the model parameters are optimized by using the SALM mechanism with training data. The NBBM model ability is evaluated by a comparison of the estimated and real IPMC bending characteristics.

Keywords

ion polymer metal composite identification non-linear black-box model multi-layer perceptron neural network learning mechanism.

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References

Bandopadhya, D. , Bhattacharya, B. and Dutta, A. 2009. ‘‘Pseudorigid Body Modeling of IPMC for a Partially Compliant Four-Bar Mechanism for Work Volume Generation,’’ Journal of Intelligent Material Systems and Structures , 20:51-61.

Bar-Cohen, Y. 2001. Electro-Active Polymer (EAP) Actuators as Artificial Muscles: Reality, Potential, and Challenges, 2nd edn, SPIE Press, Bellingham, Washington .

Bonomo, C. , Brunetto, P. , Fortuna, L. , Giannone, P. , Graziani, S. and Strazzeri, S. 2008. ‘‘A Tactile Sensor for Biomedical Applications Based on IPMCs,’’ Sensors, Proceedings of IEEE , 8:1486-1493.

Chen, Z. , Hao, L. , Xue, D. , Xu, X. and Liu, Y. 2008b. ‘‘Modeling and Control with Hysteresis and Creep of Ionic Polymer-Metal Composite (IPMC) Actuators,’’ In: Proceedings of IEEE International on Control and Decision Conference, CCDC Conference, 2-4 July 2008, China, pp. 865-870.

Chen, Z. , Kwon, K.Y. and Xiaobo, T. 2008a. ‘‘Integrated IPMC/PVDF Sensory Actuator and Its Validation in Feedback Control,’’ Sensors and Actuators A: Physical, 144:231-241.

Chen, Z. and Tan, X. 2008. ‘‘A Control-Oriented and Physics-Based Model for Ionic Polymer-Metal Composite Actuators,’’ IEEE/ ASME Transactions on Mechatronics, 13:519-529.

Jung, H. and Gweon, D.G. 2000. ‘‘Creep Characteristics of Piezoelectric Actuators ,’’ Review of Scientific Instruments , 71:1896-1900.

Kim, K.J. and Shahinpoor, M. 2002. ‘‘Development of Three Dimensional Ionic Polymer-Metal Composites as Artificial Muscles,’’ Polymer, 43:797-802.

Kim, K.J. and Tadokora, S. 2007. Electroactive Polymers for Robotic Applications, Artificial Muscles and Sensors, Springer, London.

10.

Kim, K.J. , Yim, W. , Paquette, J.W. and Kim, D. 2007. ‘‘Ionic Polymer-Metal Composites for Underwater Operation,’’ Journal of Intelligent Material Systems and Structures, 18:123-131.

11.

Lee, S. , Kim, K.J. and Park, H.C. 2006. ‘‘Modeling of an IPMC Actuator-driven Zero-Net-Mass-Flux Pump for Flow Control,’’ Journal of Intelligent Material Systems and Structures, 17:533-541.

12.

Mallavarapu, K. and Leo, D.J. 2001. ‘‘Feedback Control of the Bending Response of Ionic Polymer Actuators,’’ Journal of Intelligent Material Systems and Structures, 12:143-155.

13.

Punning, A. , Johanson, U. , Anton, M. , Aabloo, A. and Kruusmaa, M. 2009b. ‘‘A Distributed Model of Ionomeric Polymer Metal Composite,’’ Journal of Intelligent Material Systems and Structures, 20:1711-1724.

14.

Punning, A. , Kruusmaa, M. and Aabloo, A. 2009a. ‘‘Surface Resistance Experiments with IPMC Sensors and Actuators,’’ Sensors and Actuators A: Physical, 133:200-209.

15.

Shahinpoor, M. and Kim, K.J. 2002. ‘‘Novel Ionic Polymer-Metal Composites Equipped with Physically Loaded Particulate Electrodes as Biomimetic Sensors , Actuators and Artificial Muscles,’’ Sensors and Actuators A: Physical , 96:125-132.

16.

Shahinpoor, M. and Kim, K.J. 2005. ‘‘Ionic Polymer-Metal Composites: IV. Industrial and Medical Applications,’’ Smart Materials and Structures, 14:197-214.

17.

Thinh, N.T. , Yang, Y.S. and Oh, I.K. 2009. ‘‘Adaptive Neuro-fuzzy Control of Ionic Polymer Metal Composite Actuators,’’ Smart Materials and Structures, 18:1-12.

18.

Tsiakmakis, K. , Brufau, J. , Puig-Vidal, M. and Laopoulos, T. h. 2008. ‘‘Modeling IPMC Actuators for Model Reference Motion Control,’’ In: Proceedings of IEEE International Instrumentation and Measurement Technology Conference, I2MTC Conference, 12-15 May, Canada, pp. 1168-1173.

Design and Verification of a Non-linear Black-Box Model for Ionic Polymer Metal Composite Actuators

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