Publication

Rollable Multisegment Dielectric Elastomer Minimum Energy Structures for a Deployable Microsatellite Gripper

Publications associées (27)

Design of an intake and a thruster for an atmosphere-breathing electric propulsion system

Francesco Romano, Thomas Binderup Jensen

Challenging space missions include those at very low altitudes, where the atmosphere is the source of aerodynamic drag on the spacecraft, that finally defines the mission's lifetime, unless a way to compensate for it is provided. This environment is named ...

2022

Lifetime of dielectric elastomer actuators under DC electric fields

Fabio Beco Albuquerque

Dielectric elastomer actuators (DEAs) are interesting soft actuators compared to other actuation technologies owing to large achievable actuation strains, high energy density and fast actuation. However, because DEAs need to be operated under high electric ...

EPFL2022

Synthesis of Novel Integrated Actuators Powered by Shape Memory Alloys

Sean Thomas

In the modern age of miniaturisation, Smart Materials, a type of material that reacts mechanically to a certain stimulus, have become an integral part of this revolution. Among these materials, Shape Memory Alloys (SMAs), which have the highest volumetric ...

EPFL2022

Actuator, valve actuator unit and valve

Herbert Shea, Fabio Beco Albuquerque

An actuator (22) comprises at least one actuator body (32) of dielectric elastomeric material and two electrodes (34, 36) being attached to opposite surfaces of the actuator body (32), respectively. At least one of the actuator body (32) and at least one o ...

2022

Electromagnetic actuator design for distributed stiffness

Jamie Paik, Fabio Zuliani

Origami robots characterized by rigid plates linked together with flexible joints have inherent compliance and large deformations. Their low-profile design and folding mechanical transmissions provide substantial force and torque, especially for wearables ...

IOP Publishing Ltd2022

Deformation and Fracture of Tough Microstructured Hydrogels

Michael David Kessler

Many natural materials are structured on different length scales. This structuring often leads to an intricate interplay between soft and stiff components, which significantly improves the fracture toughness of these materials. A class of soft material tha ...

EPFL2022

Highly Stretchable Silicone Elastomer Applied in Soft Actuators

Fabio Beco Albuquerque, Pengpeng Hu

In this work, a highly stretchable silicone elastomer is incorporated into dielectric elastomer actuators (DEAs) in order to decrease operation voltages by applying high prestretches. Results show that the fabricated DEAs (5 mm diameter circle active regio ...

WILEY-V C H VERLAG GMBH2022

Intensifying space activity calls for increased scrutiny of risks

Romain Buchs

As the pace of space activities accelerates and societies become more reliant on space-based systems, the associated risks deserve more attention. Satellites form a critical infrastructure on which military, civil and commercial entities rely. The services ...

EPFL International Risk Governance Center2021

Shape programmable multi-stable polymer actuators

Bekir Aksoy

Recent advances in soft actuators have enabled systems that are safer to interact with, better at handling fragile objects, able to produce complex shapes with fewer components. However, being inherently soft differs these actuators from their rigid counte ...

EPFL2021

Design of an intake and a thruster for an atmosphere-breathing electric propulsion system

Francesco Romano, Thomas Binderup Jensen

2022

Lifetime of dielectric elastomer actuators under DC electric fields

Fabio Beco Albuquerque

EPFL2022

Synthesis of Novel Integrated Actuators Powered by Shape Memory Alloys

Sean Thomas

EPFL2022

Actuator, valve actuator unit and valve

Herbert Shea, Fabio Beco Albuquerque

2022

Electromagnetic actuator design for distributed stiffness

Jamie Paik, Fabio Zuliani

IOP Publishing Ltd2022

Deformation and Fracture of Tough Microstructured Hydrogels

Michael David Kessler

EPFL2022

Highly Stretchable Silicone Elastomer Applied in Soft Actuators

Fabio Beco Albuquerque, Pengpeng Hu

WILEY-V C H VERLAG GMBH2022

Intensifying space activity calls for increased scrutiny of risks

Romain Buchs

EPFL International Risk Governance Center2021

Shape programmable multi-stable polymer actuators

Bekir Aksoy

EPFL2021

A High Efficiency Pneumatic Drive System Using Vane-Type Semi-Rotary Actuators

Alfred Rufer

A compressed air driven generator is proposed, where the pneumatic energy is converted into mechanical energy using two vane-type rotational actuators. The use of a second actuator with a higher displacement in order to produce a thermodynamic expansion al ...

UNIV NIS2021