Improved electromechanical behavior in castable dielectric elastomer actuators

نویسندگان

  • Samin Akbari
  • Samuel Rosset
  • Herbert R. Shea
چکیده

Related Articles Development of a non-explosive release actuator using shape memory alloy wire Rev. Sci. Instrum. 84, 015005 (2013) New Products Rev. Sci. Instrum. 84, 019501 (2013) Design and optimization of voice coil actuator for six degree of freedom active vibration isolation system using Halbach magnet array Rev. Sci. Instrum. 83, 105117 (2012) The tracking control system of the VLT Survey Telescope Rev. Sci. Instrum. 83, 094501 (2012) Multi-functional dielectric elastomer artificial muscles for soft and smart machines App. Phys. Rev. 2012, 7 (2012)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High-performance electromechanical transduction using laterally-constrained dielectric elastomers part I: Actuation processes

A dielectric elastomer transducer is a deformable capacitor, and is under development as a sensor, actuator, or generator. Among various geometric configurations, laterallyconstrained transducer, also known as pure-shear transducer, is easy to implement and effective to couple mechanical force and electrical voltage. This analytical study reveals that lateral pre-stretch enhances actuation, far...

متن کامل

Electromechanical characterisation of dielectric elastomer planar actuators: comparative evaluation of different electrode materials and different counterloads

This work intends to extend the electromechanical characterisation of dielectric elastomer actuators. Planar actuators were realised with a 50 m-thick film of an acrylic elastomer coated with compliant electrodes. The isotonic transverse strain, the isometric transverse stress and the driving current, due to a 2 s high voltage impulse, were measured for four electrode materials (thickened elect...

متن کامل

A method to analyze electromechanical stability of dielectric elastomer actuators

This letter describes a method to analyze electromechanical stability of dielectric elastomer actuators. We write the free energy of an actuator using stretches and nominal electric displacement as generalized coordinates, and pre-stresses and voltage as control parameters. When the Hessian of the free-energy function ceases to be positive-definite, the actuator thins down drastically, often re...

متن کامل

On designing dielectric elastomer actuators

Subject to a voltage, a dielectric elastomer can deform substantially, making it a desirable material for actuators. Designing such an actuator, however, has been challenging due to nonlinear equations of state, as well as multiple modes of failure, parameters of design, and measures of performance. This paper explores these issues, using a spring-roll actuator as an example. We formulate the e...

متن کامل

Helical dielectric elastomer actuators

This paper presents a new type of contractile polymer-based electromechanical linear actuator. The device belongs to the class of dielectric elastomer actuators, which are typically capable of undergoing large deformations induced by an applied electric field. It is based on a novel helical configuration, suitable for the generation of electrically driven axial contractions and radial expansion...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013