Electromechanical behavior of a novel dielectric elastomer sensor for compressive force detection (Conference Presentation)

2016 ◽  
Author(s):  
Junjie Liu ◽  
Guoyong Mao ◽  
Xiaoqiang Huang ◽  
Zhanan Zou ◽  
Shaoxing Qu ◽  
...  
Keyword(s):  
Compressive Force ◽  
Dielectric Elastomer ◽  
Force Detection ◽  
Electromechanical Behavior

scholarly journals Electromechanical behavior of fiber-reinforced dielectric elastomer membrane

2015 ◽  
Vol 6 (2) ◽  
pp. 124-134 ◽  
Author(s):  
Chi Li ◽  
Yuhan Xie ◽  
Guorui Li ◽  
Xuxu Yang ◽  
Yongbin Jin ◽  
...  
Keyword(s):  
Dielectric Elastomer ◽  
Fiber Reinforced ◽  
Electromechanical Behavior ◽  
Dielectric Elastomer Membrane

The Electromechanical Behavior of Dielectric Elastomer Actuator Stiffened by Fiber

2018 ◽  
Vol 765 ◽  
pp. 12-15 ◽  
Author(s):  
Long Zhou Lyu ◽  
Shi Jie Zhu
Keyword(s):  
Applied Voltage ◽  
Applied Load ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Dielectric Elastomer ◽  
Functional Material ◽  
Dielectric Elastomer Actuator ◽  
Electromechanical Behavior ◽  
Electromechanical Performance

Dielectric elastomer is functional material that can convert electrical energy to mechanical energy. In this paper, a cylindrical dielectric elastomer actuator was designed and fabricated by using fiber stiffening to improve its electromechanical performance. the effects of pre-straining, rate of applied voltage and fiber stiffening on the electromechanical behavior were investigated by the experiments. It was found that the best applied load for pre-straining was 524g based on the electromechanical tests at the applied voltage rate of 10V/s. The maximum actuated strain decreased with an increase in rate of applied voltage. When the fibers were embedded in the dielectric elastomer actuator, the maximum actuated strain was 27.5%, doubled the value of 14% without fiber stiffening at the applied voltage rate of 20V/s.

scholarly journals Improved electromechanical behavior in castable dielectric elastomer actuators

2013 ◽  
Vol 102 (7) ◽  
pp. 071906 ◽  
Author(s):  
Samin Akbari ◽  
Samuel Rosset ◽  
Herbert R. Shea
Keyword(s):  
Dielectric Elastomer ◽  
Electromechanical Behavior ◽  
Dielectric Elastomer Actuators

Performance of a Dielectric Elastomer Generator Diaphragm as a Smart Composite at Different Pre-Strain Levels

2007 ◽  
Vol 334-335 ◽  
pp. 989-992
Author(s):  
M.R. Khosroshahi ◽  
S.R. Ghaffarian ◽  
P. Khodaparast
Keyword(s):  
Energy Density ◽  
Elastic Energy ◽  
Dielectric Elastomer ◽  
Dielectric Elastomers ◽  
Smart Composite ◽  
Electromechanical Behavior ◽  
Elastic Energy Density ◽  
New Type ◽  
Volume Characteristics ◽  
Compliant Electrodes

Dielectric elastomers (DEs) could be considered as a new type of transducers. They can convert electrical and mechanical energies in a bi-directional manner. In this work, the electromechanical behavior of a DE diaphragmatic generator was investigated. Circular diaphragms were fabricated using a prestretched DE film sandwiched between laminates of compliant electrodes. A special chamber was used to apply pressure. Pressure-Volume characteristics of diaphragms were measured to calculate elastic energy density. DC voltages were applied to the electrodes and the generated voltages were measured. It was concluded that efficiency of generators was strongly dependent on the amount of biased voltage, pre-straining level and applied pressures.

Silicone Material With Enhanced Permittivity Used for Dielectric Elastomer Transducers

2019 ◽  
Author(s):  
Ozan Çabuk ◽  
Jürgen Maas
Keyword(s):  
Young’S Modulus ◽  
Young's Modulus ◽  
Single Layer ◽  
Tensile Tests ◽  
Dielectric Elastomer ◽  
Work Output ◽  
Standard Material ◽  
Electromechanical Behavior ◽  
High Elasticity ◽  
New Material

Abstract Silicone materials are very appropriate for dielectric elastomer (DE) transducer applications due to their distinguished mechanical and electrical characteristics like high elasticity and an efficient electromechanical behavior. Since the material parameter permittivity influences significantly the work output, Wacker Chemie AG developed a new silicone named ELASTOSIL® Film 5030 with increased permittivity for improving the work output. Within this contribution, the mechanical characteristics including the hyperelasticity and electromechanically coupled behavior is compared to standard silicone material ELASTOSIL® Film 2030 from Wacker Young’s modulus of both materials are obtained conducting tensile tests, while the electromechanical behavior is characterized by investigating a planar single layer DE transducer. The new material has a similar Young’s modulus compared to the standard material. Furthermore, the electrically actuated deformation of the planar single layer DE transducers made form new silicone is proportional larger to its permittivity and inversely proportional to its Young’s modulus under same electrical field applied.

Enhanced Compressive Sensing of Dielectric Elastomer Sensor Using a Novel Structure

2015 ◽  
Vol 82 (10) ◽  
Author(s):  
Junjie Liu ◽  
Guoyong Mao ◽  
Xiaoqiang Huang ◽  
Zhanan Zou ◽  
Shaoxing Qu
Keyword(s):  
Large Deformation ◽  
Plane Deformation ◽  
Compressive Force ◽  
High Sensitivity ◽  
Dielectric Elastomer ◽  
Sensor Element ◽  
Aspect Ratios ◽  
Novel Structure ◽  
And Performance ◽  
External Forces

Dielectric elastomer (DE) can undergo large deformation when subjected to external forces or voltage, leading to the variation of the capacitance. A novel DE sensor is proposed to detect compressive force. This sensor consists of a series of elements made of DE membrane with out-of-plane deformation. Each element experiences highly inhomogeneous large deformation to obtain high sensitivity. Both experimental and theoretical studies are conducted to optimize the performance of the sensor element, and the effects of the prestretches and the aspect ratios on the sensitivity are achieved. Results from the theoretical analysis based on continuum mechanics agree well with the experimental data. Furthermore, the reliability of the sensor element is illustrated by additional experimental investigation on the operation after 2000 cyclic loadings. This study provides guidance for the design and performance analysis of soft sensors.

Modeling of Viscoelastic Electromechanical Behavior in a Soft Dielectric Elastomer Actuator

2017 ◽  
Vol 33 (5) ◽  
pp. 1263-1271 ◽  
Author(s):  
Guo-Ying Gu ◽  
Ujjaval Gupta ◽  
Jian Zhu ◽  
Li-Min Zhu ◽  
Xiangyang Zhu
Keyword(s):  
Dielectric Elastomer ◽  
Dielectric Elastomer Actuator ◽  
Electromechanical Behavior
Sign in / Sign up

Export Citation Format

Share Document