Publications associées à Déplacement (géométrie)

3D printed large amplitude torsional microactuators powered by ultrasound

Mahmut Selman Sakar, Mehdi Ali Gadiri, Junsun Hwang, Amit Yedidia Dolev

Here, we introduce a design, fabrication, and control methodology for large amplitude torsional microactuators powered by ultrasound. The microactuators are 3D printed from two polymers with drastically different elastic moduli as a monolithic compliant me ...

2024

Vertical and Leg Stiffness Modeling During Running: Effect of Speed and Incline

Kamiar Aminian, Frédéric Meyer, Grégoire Millet, Mathieu Pascal Falbriard

A spring mass model is often used to describe human running, allowing to understand the concept of elastic energy storage and restitution. The stiffness of the spring is a key parameter and different methods have been developed to estimate both the vertica ...

GEORG THIEME VERLAG KG2023

Control-oriented modeling and analysis of tubular dielectric elastomer actuators dedicated to cardiac assist devices

Yves Perriard, Yoan René Cyrille Civet, Thomas Guillaume Martinez, Armando Matthieu Walter, Ning Liu

This paper deals with the control-oriented modeling of a multilayered dielectric elastomer actuator based tube. The actuator is clamped at both sides and performs a radial displacement. The hyperelastic deformation and the viscoelastic performance, togethe ...

2022

Unraveling looping efficiency of stochastic Cosserat polymers

Raushan Singh, Giulio Corazza

Understanding looping probabilities, including the particular case of ring closure or cyclization, of fluctuating polymers (e.g., DNA) is important in many applications in molecular biology and chemistry. In a continuum limit the configuration of a polymer ...

AMER PHYSICAL SOC2022

Design and modelling of a tubular dielectric elastomer actuator with constrained radial displacement as a cardiac assist device

Yves Perriard, Yoan René Cyrille Civet, Armando Matthieu Walter, Jonathan André Jean-Marie Chavanne

In this paper, we propose an improvement of a dielectric elastomer actuator (DEA) based augmented aorta. The actuator is a multi-layered tubular DEA subject to the internal pressure of the blood. When activated in synchronisation with the heart, the DEA su ...

IOP PUBLISHING LTD2021

Smart Slit Assembly Employing Continuously Tunable MEMS Shutter

Niels Quack, Hamed Sattari, Gergely Huszka, Anton Lagosh, Benedikt Guldimann

We present the concept and detailed design of a Smart Slit Assembly for next generation spectrometers, and we experimentally demonstrate operation of an individual 221 mu m x 111 mu m smart slit channel employing a MEMS actuated shutter to continuously mod ...

SPIE-INT SOC OPTICAL ENGINEERING2021

Redefining Energy Density for an uniaxial Dielectric Elastomer Actuator

Yves Perriard, Yoan René Cyrille Civet, Jonathan André Jean-Marie Chavanne

The dielectric elastomer actuator (DEA) is a technology known to potentially provide high energy density (0.3 - 0.4 J.cm(-3)). However, in the literature, few demonstrations have been done to evaluate this figure. To well understand the ability of this tec ...

IEEE2021

Case-Study on the Creep Behavior of Interconnected Timber Elements using Wood-Wood Connections

Yves Weinand, Julien Gamerro, Martin Thomas Nakad, Jean-François Bocquet

With the increasing use of automation and computer-aided manufacturing in timber construction, a standardized timber construction system using digitally produced wood-wood connections has recently been developed for basic building components. Its structura ...

EPFL2021

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Déplacement (géométrie)

3D printed large amplitude torsional microactuators powered by ultrasound

Micro- or nanostructured optical element

Vertical and Leg Stiffness Modeling During Running: Effect of Speed and Incline

Control-oriented modeling and analysis of tubular dielectric elastomer actuators dedicated to cardiac assist devices

Unraveling looping efficiency of stochastic Cosserat polymers

An unrefinement algorithm for planar THB-spline parameterizations

Design and modelling of a tubular dielectric elastomer actuator with constrained radial displacement as a cardiac assist device

Smart Slit Assembly Employing Continuously Tunable MEMS Shutter

Redefining Energy Density for an uniaxial Dielectric Elastomer Actuator

Case-Study on the Creep Behavior of Interconnected Timber Elements using Wood-Wood Connections

Graph Chatbot

Chattez avec Graph Search

3D printed large amplitude torsional microactuators powered by ultrasound

An unrefinement algorithm for planar THB-spline parameterizations

Unraveling looping efficiency of stochastic Cosserat polymers

Design and modelling of a tubular dielectric elastomer actuator with constrained radial displacement as a cardiac assist device

Micro- or nanostructured optical element

Control-oriented modeling and analysis of tubular dielectric elastomer actuators dedicated to cardiac assist devices

Vertical and Leg Stiffness Modeling During Running: Effect of Speed and Incline

Redefining Energy Density for an uniaxial Dielectric Elastomer Actuator

Smart Slit Assembly Employing Continuously Tunable MEMS Shutter

Case-Study on the Creep Behavior of Interconnected Timber Elements using Wood-Wood Connections