Modeling, Identification, and Control of a Dielectric Electro-Active Polymer Positioning System

This paper deals with a positioning system based on a dielectric electro-active polymer membrane. The motion is generated by the deformation of the membrane caused by the electrostatic compressive force between two compliant electrodes applied on the surface of the polymer. This paper proposes a detailed electro-mechanical nonlinear model of the system, which is subsequently used to develop (in both time and frequency domains) various model-based feedback control laws. Accurate modeling is useful to compensate the nonlinear behavior of the actuator (caused by the material characteristics and geometry) and obtain PID controllers providing precise tracking of steps or sinusoidal reference signals. The various design strategies are compared on various experimental tests.

[1]  A. Ram,et al.  Behavior of Polymers , 1997 .

[2]  Micah Hodgins,et al.  Modeling and experimental validation of a bi-stable out-of-plane DEAP actuator system , 2011 .

[3]  Steven Dubowsky,et al.  Hyper-redundant robot manipulators actuated by optimized binary-dielectric polymers , 2002, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[4]  A. York,et al.  Experimental comparison of bias elements for out-of-plane DEAP actuator system , 2013 .

[5]  Ian Postlethwaite,et al.  Multivariable Feedback Control: Analysis and Design , 1996 .

[6]  Stefan Seelecke,et al.  Modeling and position control of an electromechanical actuator based on a mass-spring-biased EAP system , 2013, 2013 IEEE 18th Conference on Emerging Technologies & Factory Automation (ETFA).

[7]  G Jordan,et al.  Actuated Micro-optical Submount Using a Dielectric Elastomer Actuator , 2011, IEEE/ASME Transactions on Mechatronics.

[8]  Chih-Ming Huang,et al.  Improvement of viscoelastic effects of dielectric elastomer actuator and its application for valve devices , 2007, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[9]  D. De Rossi,et al.  Electroactive Elastomeric Actuator for All-Polymer Linear Peristaltic Pumps , 2010, IEEE/ASME Transactions on Mechatronics.

[10]  P Lotz,et al.  Fabrication and Application of Miniaturized Dielectric Elastomer Stack Actuators , 2011, IEEE/ASME Transactions on Mechatronics.

[11]  Ja Choon Koo,et al.  Electromechanically driven variable-focus lens based on transparent dielectric elastomer. , 2012, Applied optics.

[12]  M. Hoagland,et al.  Feedback Systems An Introduction for Scientists and Engineers SECOND EDITION , 2015 .

[13]  Ron Pelrine,et al.  Actuation Response of Polyacrylate Dielectric Elastomers , 2001, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[14]  R. Pelrine,et al.  Sound radiation properties of dielectric elastomer electroactive polymer loudspeakers , 2006, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[15]  Stefan Seelecke,et al.  Towards Self-Sensing of DEAP Actuators: Capacitive Sensing Experimental Analysis , 2010 .

[16]  Ja Choon Koo,et al.  Development of dielectric elastomer driven micro-optical zoom lens system , 2007, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[17]  Eric Mockensturm,et al.  Electro-elastic modeling of a dielectric elastomer diaphragm for a prosthetic blood pump , 2004, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[18]  Hidetoshi Kotera,et al.  Concepts for a new class of all-polymer micropumps. , 2006, Lab on a chip.

[19]  Rahimullah Sarban,et al.  Physical model-based active vibration control using a dielectric elastomer actuator , 2012 .

[20]  W Kaal,et al.  Electroactive Polymer Actuators in Dynamic Applications , 2011, IEEE/ASME Transactions on Mechatronics.

[21]  Stefan Seelecke,et al.  Experimental characterization of the hysteretic and rate-dependent electromechanical behavior of dielectric electro-active polymer actuators , 2010 .

[22]  D. Schroder,et al.  A multidomain model of planar electro-active polymer actuators , 2005, IEEE Transactions on Industry Applications.

[23]  J. Shamma.  Robust stability with time-varying structured uncertainty , 1994, IEEE Trans. Autom. Control..

[24]  G. Kovács,et al.  Dielectric elastomer actuators used for pneumatic valve technology , 2013 .

[25]  C. Keplinger,et al.  Röntgen’s electrode-free elastomer actuators without electromechanical pull-in instability , 2010, Proceedings of the National Academy of Sciences.

[26]  Micah Hodgins,et al.  High-Frequency Dynamic Model of a Pre-Loaded Circular Dielectric Electro-Active Polymer Actuator , 2013 .

[27]  Kazuho Ono,et al.  A lightweight push-pull acoustic transducer composed of a pair of dielectric elastomer films. , 2013, The Journal of the Acoustical Society of America.

[28]  Rocco Vertechy,et al.  Modeling and Control of Lozenge-Shaped Dielectric Elastomer Generators , 2013 .

[29]  Rahimullah Sarban,et al.  Inverse grey-box model-based control of a dielectric elastomer actuator , 2012 .

[30]  S. Dubowsky,et al.  Large-scale failure modes of dielectric elastomer actuators , 2006 .

[31]  E. Mizutani,et al.  Neuro-Fuzzy and Soft Computing-A Computational Approach to Learning and Machine Intelligence [Book Review] , 1997, IEEE Transactions on Automatic Control.

[32]  Sean R. Anderson,et al.  Bioinspired Adaptive Control for Artificial Muscles , 2013, Living Machines.

[33]  Giulio Sandini,et al.  Closed loop control of a rotational joint driven by two antagonistic dielectric elastomer actuators , 2010, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[34]  Rocco Vertechy,et al.  Dynamic modeling and experimental evaluation of a constant-force dielectric elastomer actuator , 2013 .

[35]  Edoardo Mazza,et al.  Mechanical behavior of an acrylic elastomer used in dielectric elastomer actuators , 2007 .

[36]  Zhigang Suo,et al.  Nonlinear deformation analysis of a dielectric elastomer membrane–spring system , 2010 .

[37]  R.D. Lorenz,et al.  A multiphysics model of planar electro-active polymer actuators , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[38]  Z. Suo.  Theory of dielectric elastomers , 2010 .

[39]  Steven Dubowsky,et al.  On the performance mechanisms of Dielectric Elastomer Actuators , 2007 .

[40]  Edoardo Mazza,et al.  Modeling of a pre-strained circular actuator made of dielectric elastomers , 2005 .

[41]  S.Q. Xie,et al.  An adaptive control system for dielectric elastomers , 2005, 2005 IEEE International Conference on Industrial Technology.

[42]  Ron Pelrine,et al.  Dielectric elastomer artificial muscle actuators: toward biomimetic motion , 2002, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.