The mechanism for large-volume fluid pumping via reversible snap-through of dielectric elastomer

Giant deformation of dielectric elastomers (DEs) via electromechanical instability (or the “snap-through” phenomenon) is a promising mechanism for large-volume fluid pumping. Snap-through of a DE membrane coupled with compressible air has been previously investigated. However, the physics behind reversible snap-through of a DE diaphragm coupled with incompressible fluid for the purpose of fluid pumping has not been well investigated, and the conditions required for reversible snap-through in a hydraulic system are unknown. In this study, we have proposed a concept for large-volume fluid pumping by harnessing reversible snap-through of the dielectric elastomer. The occurrence of snap-through was theoretically modeled and experimentally verified. Both the theoretical and experimental pressure-volume curves of the DE membrane under different actuation voltages were used to design the work loop of the pump, and the theoretical work loop agreed with the experimental work loop. Furthermore, the feasibility of r...

[1]  Choon Chiang Foo,et al.  Model of dissipative dielectric elastomers , 2012 .

[2]  Sung Yang,et al.  Experimental investigation of pulsatility effect on the deformability and hemolysis of blood cells. , 2010, Artificial Organs.

[3]  R. Sahu,et al.  A visco-hyperelastic approach to modelling rate-dependent large deformation of a dielectric acrylic elastomer , 2015 .

[4]  Zhigang Suo,et al.  Computational Model of Hydrostatically Coupled Dielectric Elastomer Actuators , 2012 .

[5]  Alexandre Poulin,et al.  Printing low-voltage dielectric elastomer actuators , 2015 .

[6]  Dario Albino Carnelli,et al.  Measurement of insulating and dielectric properties of acrylic elastomer membranes at high electric fields , 2012 .

[7]  Eric Mockensturm,et al.  Modeling of a dielectric elastomer diaphragm for a prosthetic blood pump , 2003, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[8]  Zhigang Suo,et al.  Resonant behavior of a membrane of a dielectric elastomer , 2010 .

[9]  S. Michel,et al.  A comparison between silicone and acrylic elastomers as dielectric materials in electroactive polymer actuators , 2009 .

[10]  Shmuel Einav,et al.  The Syncardia(™) total artificial heart: in vivo, in vitro, and computational modeling studies. , 2013, Journal of biomechanics.

[11]  D. De Rossi,et al.  Stretching Dielectric Elastomer Performance , 2010, Science.

[12]  Sergey V. Selishchev,et al.  Total Artificial Heart: State-of-the-art , 2015 .

[13]  Choon Chiang Foo,et al.  Giant, voltage-actuated deformation of a dielectric elastomer under dead load , 2012 .

[14]  Junhua Qiang,et al.  A dynamic visco-hyperelastic model of dielectric elastomers and their energy dissipation characteristics , 2013 .

[15]  Karali Patra,et al.  Experimental Study and Numerical Modelling of Creep and Stress Relaxation of Dielectric Elastomers , 2015 .

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

[17]  G. Ewald,et al.  Hemolysis in left ventricular assist device: a retrospective analysis of outcomes. , 2014, The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation.

[18]  Metin Sitti,et al.  Inflated Soft Actuators with Reversible Stable Deformations , 2016, Advanced materials.

[19]  Choon Chiang Foo,et al.  A Finite Element Method for Inhomogeneous Deformation of Viscoelastic Dielectric Elastomers , 2015 .

[20]  Zicai Zhu,et al.  Effect of mechanical pre-stretch on the stabilization of dielectric elastomer actuation , 2011 .

[21]  I. Anderson,et al.  Soft generators using dielectric elastomers , 2011 .

[22]  Zhigang Suo,et al.  Dielectric Elastomer Generators: How Much Energy Can Be Converted? , 2011, IEEE/ASME Transactions on Mechatronics.

[23]  Jim Connelly,et al.  A single center’s conversion from roller pump to centrifugal pump technology in extracorporeal membrane oxygenation , 2016, Perfusion.

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

[25]  C. Keplinger,et al.  Giant voltage-induced deformation in dielectric elastomers near the verge of snap-through instability , 2013 .

[26]  Zhigang Suo,et al.  Dielectric elastomer actuators with elastomeric electrodes , 2012 .

[27]  Alyson M. Tews,et al.  Pressure-volume characteristics of dielectric elastomer diaphragms , 2003, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[28]  Jian Zhu,et al.  Giant voltage-induced deformation of a dielectric elastomer under a constant pressure , 2014 .

[29]  Helmut F. Schlaak,et al.  Peristaltic pump made of dielectric elastomer actuators , 2009, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[30]  Z. Suo,et al.  Theory of dielectric elastomers capable of giant deformation of actuation. , 2010, Physical review letters.

[31]  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.

[32]  Xuanhe Zhao,et al.  Electromechanical instability on dielectric polymer surface: Modeling and experiment , 2013 .

[33]  R. Pelrine,et al.  Actuation Response of Polyacrylate Dielectric Elastomers , 2003 .

[34]  M. Ruel,et al.  Centrifugal pump and roller pump in adult cardiac surgery: a meta-analysis of randomized controlled trials. , 2012, Artificial organs.

[35]  Jinxiong Zhou,et al.  Homogeneous large deformation analysis of a dielectric elastomer peristaltic actuator , 2012 .

[36]  Rocco Vertechy,et al.  Reduced Model and Application of Inflating Circular Diaphragm Dielectric Elastomer Generators for Wave Energy Harvesting , 2015 .

[37]  Guoyong Mao,et al.  Dielectric elastomer peristaltic pump module with finite deformation , 2015 .

[38]  C. Keplinger,et al.  Harnessing snap-through instability in soft dielectrics to achieve giant voltage-triggered deformation , 2012 .

[39]  Choon Chiang Foo,et al.  A dielectric elastomer actuator coupled with water: snap-through instability and giant deformation , 2015, Smart Structures.

[40]  Bert Müller,et al.  Siloxane-based thin films for biomimetic low-voltage dielectric actuators , 2015 .