scholarly journals Modeling of Dielectric Electroactive Polymer Actuators with Elliptical Shapes

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5633
Author(s):  
Jakub Bernat ◽  
Jakub Kołota
Keyword(s):  
Smart Materials ◽  
Electroactive Polymers ◽  
Double Cone ◽  
Electroactive Polymer ◽  
Standard Approach ◽  
Additional Mass ◽  
Range Of Movement ◽  
Circular Shape ◽  
Polymer Actuators ◽  
The Many

Dielectric electroactive polymers have been widely used in recent applications based on smart materials. The many advantages of dielectric membranes, such as softness and responsiveness to electric stimuli, have lead to their application in actuators. Recently, researchers have aimed to improve the design of dielectric electroactive polymer actuators. The modifications of DEAP actuators are designed to change the bias mechanism, such as spring, pneumatic, and additional mass, or to provide a double cone configuration. In this work, the modification of the shape of the actuator was analyzed. In the standard approach, a circular shape is often used, while this research uses an elliptical shape for the actuator. In this study, it was shown that this construction allows a wider range of movement. The paper describes a new design of the device and its model. Further, the device is verified by the measurements.

A review on electroactive polymers development for aerospace applications

2018 ◽  
Vol 29 (19) ◽  
pp. 3681-3695 ◽  
Author(s):  
Musavir Bashir ◽  
Parvathy Rajendran
Keyword(s):  
Smart Materials ◽  
Electroactive Polymers ◽  
Fast Response ◽  
Polymer Materials ◽  
Electroactive Polymer ◽  
Sensors And Actuators ◽  
Aerospace Applications ◽  
Current Trends ◽  
Potential Applications ◽  
Active Flap

Newfangled smart materials have inspired the researchers to look for more efficient materials that can respond to specific stimuli and retain the original shape. Electroactive polymers are such materials which are capable of sensing and real-time actuation. Various electroactive polymers are excellent candidates due to high strain rate, fast response, reliability and high mechanical compliance despite tough manufacturing. In this study, electroactive polymers are reviewed and the general enabling mechanisms employing their distinct characteristics are presented, and the factors influencing the properties of various electroactive polymers are also discussed. Our study also enumerates the current trends in the development of electroactive polymers along with its progress in aerospace discipline. The electromechanical properties of electroactive polymer materials endow them the capability to work as both sensors and actuators in the field of aerospace. Hence, we provide an overview of various applications of electroactive polymers in aerospace field, notably aircraft morphing. These actuators are vastly used in aerospace applications like Mars Nano-rover, space robotic, flapping wings and active flap. Therefore, the electroactive polymer applications such as effective actuators can be investigated more in their materials, molecular interactions, electromechanics and actuation mechanisms. Considering electroactive polymers unique properties, they will endeavour the great potential applications within aerospace industry.

scholarly journals A Kirigami Approach of Patterning Membrane Actuators

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 125
Author(s):  
Harti Kiveste ◽  
Rudolf Kiefer ◽  
Rain Eric Haamer ◽  
Gholamreza Anbarjafari ◽  
Tarmo Tamm
Keyword(s):  
Computer Simulations ◽  
Polyvinylidene Fluoride ◽  
Electroactive Polymers ◽  
Electroactive Polymer ◽  
Limiting Factor ◽  
Polymer Actuators ◽  
Membrane Type ◽  
Membrane Actuators

Ionic electroactive polymer actuators are typically implemented as bending trilayer laminates. While showing high displacements, such designs are not straightforward to implement for useful applications. To enable practical uses in actuators with ionic electroactive polymers, membrane-type film designs can be considered. The significantly lower displacement of the membrane actuators due to the lack of freedom of motion has been the main limiting factor for their application, resulting in just a few works considering such devices. However, bioinspired patterning designs have been shown to significantly increase the freedom of motion of such membranes. In this work, we apply computer simulations to design cutting patterns for increasing the performance of membrane actuators based on polypyrrole doped with dodecylbenzenesulfonate (PPy/DBS) in trilayer arrangements with a polyvinylidene fluoride membrane as the separator. A dedicated custom-designed device was built to consistently measure the response of the membrane actuators, demonstrating significant and pattern-specific enhancements of the response in terms of displacement, exchanged charge and force.

Electroactive polymer actuators as artificial muscles: are they ready for bioinspired applications?

2011 ◽  
Vol 6 (4) ◽  
pp. 045006 ◽  
Author(s):  
Federico Carpi ◽  
Roy Kornbluh ◽  
Peter Sommer-Larsen ◽  
Gursel Alici
Keyword(s):  
Electroactive Polymer ◽  
Artificial Muscles ◽  
Polymer Actuators

Exploration of an Electroactive Polymer as an Actuator for Microrobotics

2003 ◽  
Vol 785 ◽  
Author(s):  
C. Bielmeier ◽  
W. Walter
Keyword(s):  
Steady State ◽  
Power Consumption ◽  
Parallel Plate ◽  
Electroactive Polymers ◽  
Electroactive Polymer ◽  
Low Power Consumption ◽  
Parallel Plate Capacitor ◽  
Steady State Current ◽  
A Current ◽  
Over Time

ABSTRACTThe development of lightweight low power consumption actuators is critical to the development of micro-robotics. Electroactive Polymers (EAP), i.e. Nafion N-117, meet these requirements. In the actuation of an EAP, the current does not remain constant over time. The development of a circuit model of current draw over time to best predict a current dynamic has been explored. While the material mimics a parallel plate capacitor, it has been found that capacitance plays no role in achieving steady state current levels. This development is critical to understanding and developing the material as an actuator.

Micro-mechanics of ionic electroactive polymer actuators

2015 ◽  
Author(s):  
Andres Punning ◽  
Inga Põldsalu ◽  
Friedrich Kaasik ◽  
Veiko Vunder ◽  
Alvo Aabloo
Keyword(s):  
Electroactive Polymer ◽  
Polymer Actuators

Hybrid Actuation in Coupled Ionic / Conducting Polymer Devices

2003 ◽  
Vol 785 ◽  
Author(s):  
Matthew D. Bennett ◽  
Donald J. Leo
Keyword(s):  
Conducting Polymer ◽  
Smart Materials ◽  
Electromechanical Coupling ◽  
Performance Metrics ◽  
Polymer Membrane ◽  
Low Frequencies ◽  
Ionic Polymer ◽  
Polymer Actuators ◽  
Ionic Conducting ◽  
Initial Results

ABSTRACTIonic polymer membrane actuators represent a relatively new and exciting entry into the field of smart materials. Several key limitations of these transducers have prevented them from experiencing widespread use, however. For example, the bandwidth of these devices is limited at very low frequencies by characteristic relaxation and at high frequencies by the low elastic modulus of the polymer. In this paper, an overview of the initial results of work with hybrid ionic / conducting polymer actuators is presented. These hybrid actuators are devices that combine the electromechanical coupling of ionic polymer actuators and conducting polymer actuators into one coupled device. Initial results show that these hybrid devices have the potential to offer marked advantages over traditional ionic polymer membrane transducers, including increased stress and strain generation and higher actuation bandwidth. Details of the preparation of these devices and performance metrics are presented and comparisons to baseline materials are made.

Martian jumping rover equipped with electroactive polymer actuators: A preliminary study

2007 ◽  
Vol 43 (1) ◽  
pp. 79-92 ◽  
Author(s):  
Federico Carpi ◽  
Aldo Tralli ◽  
Danilo Rossi ◽  
Paolo Gaudenzi
Keyword(s):  
Electroactive Polymer ◽  
Polymer Actuators ◽  
Preliminary Study
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