Publication
Monolithic transparent 3D dielectrophoretic micro-actuator fabricated by femtosecond laser
Publications associées (51)
Additively manufactured stretchable zipping electrostatic actuators
The use of soft and stretchable materials allows the development of adaptive robotic systems and human-machine interfaces that are more natural and comfortable to interact with. One of the application fields that benefits the most from these compliant mate ...
EPFL2024Design of adaptive structures through energy minimization: extension to tensegrity
This paper gives a new formulation to design adaptive structures through total energy optimization (TEO). This methodology enables the design of truss as well as tensegrity configurations that are equipped with linear actuators to counteract the effect of ...
2021Design 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 LTD2021A Monolithic Gimbal Micro-Mirror Fabricated and Remotely Tuned with a Femtosecond Laser
Yves Bellouard, Saood Ibni Nazir
With the advent of ultrafast lasers, new manufacturing techniques have come into existence. In micromachining, the use of femtosecond lasers not only offers the possibility for three-dimensional monolithic fabrication inside a single optically transparent ...
2019Dynamically reconfigurable DEAs incorporating shape memory polymer fibers
We present variable stiffness dielectric elastomer actuators (DEAs), combining a single DEA actuator with embedded shape memory polymer (SMP) fibers, which can be electrically addressed to locally reduce the stiffness by a factor of 100. The device accommo ...
SPIE-INT SOC OPTICAL ENGINEERING2019Local tuning of fused silica thermal expansion coefficient using femtosecond laser
Yves Bellouard, Pieter Vlugter, Erica Kathleen Block
Femtosecond laser exposure of fused silica in the nonablative regime can lead to various localized bulk modifications of the material structure. In this paper, we show that these laser-induced modifications can be used to tune silica thermal expansion prop ...
2019Improved modelling of a monomorph piezoelectric actuator for linear self-sensing applications
Yves Perriard, Louis Antoine Masson
Based on a previous approach for the modelling of piezoelectric monomorph benders, a new, more complete, analytical model is proposed. Some previously neglected features of the actuator stack, notably the thickness of the electrodes and the presence of iso ...
IEEE2019Design of an Innovative Cylindrical Spring with a Negative Stiffness
Yves Perriard, Yoan René Cyrille Civet, Jonathan André Jean-Marie Chavanne
Interest in the dielectric electroactive polymer is growing in the medical field because of the large similarity with the biological muscles. With the objective to create an artificial pump based on DEAP, this paper presents the concept of an innovative sp ...
IEEE2018Device having a plurality of latching micro-actuators and method of operating the same
Herbert Shea, Samuel Rosset, Nadine Besse, Juan José Zarate
An actuator device including a plurality of transducer actuators, and a common pneumatic actuation mechanism for shaping the plurality of transducer actuators, wherein each actuator of the plurality of transducer actuators includes a shape memory polymer m ...
20183D monolithic dielectrophoretic actuators and resonators written by femtosecond laser
The last few decades have witnessed exciting advances in micro-opto-electro-mechanical systems (MOEMS) including revolutionary development of fabrication processes and an ever increasing expansion of their domain of applications. In parallel, femtosecond l ...
EPFL2017