Publications by Yves Perriard | EPFL Graph Search

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Diabetic foot ulceration is a serious challenge worldwide which imposes an immense risk of lower extremity amputation and in many cases may lead to the death. The presented work focuses on the offloading requirements using an active approach and considers ...

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 ...

This paper presents a method to dynamically filter the position and the speed of a linear actuator during its closing. A previous paper presented position detection without external sensor but, by simply deriving it, the corresponding speed was not usable ...

We are developing haptic interfaces compatible with functional Magnetic Resonance Imaging (fMRI) for neuroscience studies. The presented prototype with one rotary degree of freedom is actuated by a traveling wave ultrasonic motor operating under admittance ...

Self-sensing actuation in piezoelectric actuators has been a growing research topic since 1992, with two main approaches having been identified: either by evaluating the dielectric displacement field within the piezoelectric through a measurement bridge, e ...

We present an original analytical determination of the force acting on the moving coil in an electromagnetic actuator. The actuator magnetic field is solved analytically by Schwarz-Christoffel (SC) mapping. The SC integral is solved analytically using the ...

An analytical solution for the torque and power of a solid-rotor two-pole three-phase slotless induction motor is presented. The field excitation is a current layer placed at the stator interior surface. The solution is based on an analytical solution of t ...

This paper presents a solution to design a linear reluctant transducer characterized by a quasi-linear force versus the displacement and to simplify the electronic supply as well as the control. The model, the verification by a finite element simulation and an application as a vibrator generation system are developed

Slotless brushless dc motors find more and more applications due to their high performance and their low production cost. This paper focuses on the windings inserted in the air gap of these motors and, in particular, to an original production technique tha ...

This paper presents a very-high-speed (VHS) slotless permanent-magnet motor design procedure using an analytical model. The model is used to design the optimal prototype (target: 200 kr/min, 2 kW). The multiphysics analytical model allows a quick optimizat ...

This paper describes a new method to estimate the standstill position of permanent-magnet synchronous motors (PMSMs). The method is based on the anisotropic properties of permanent magnets and is therefore referred to as a magnetic anisotropy method (MAM). ...

The article presents two different torque measurement methods for very high speed synchronous motors: one uses an eddy current brake, and the other is an inertial method. The article also presents a ball bearings friction torque measurement method designed ...

Although heart transplant is the preferred solution for patients suffering from heart failures, cardiac assist devices remain key substitute therapies. Among them, aortic augmentation using dielectric elastomer actuators (DEAs) might be an alternative tech ...

Yves Perriard

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Prototyping and Experimental Analysis of Active Offloading Footwear for Patients With Diabetes Using an Array of Magnetorheological Fluid–Based Modules

Analytical and experimental investigation on the force and torque of a reaction sphere for satellite attitude control

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

Inductive Supply for Highly Insulated Device

Kalman Filter to Measure Position and Speed of a Linear Actuator

FMRI compatible haptic interface actuated with traveling wave ultrasonic motor

Haptic tactile interface (HTI): Friction coefficient measurements

Study of self-sensing actuation strategies for quasi-static piezoelectric actuators

Analytical Force Determination in an Electromagnetic Actuator

An Analytical Solution for the Torque and Power of a Solid-Rotor Induction Motor

Linear reluctant transducer for vibrator application

Design of an Haptic Tactile Interface (HTI) with Friction Coefficient Measurements

Theoretical and Experimental Investigation of Flex-PCB Air-Gap Windings in Slotless BLDC Machines

Minimizing the circulating currents of a slotless BLDC motor through winding reconfiguration

Dynamic Winding Reconfiguration of a Brushless DC Motor

Very High Speed Slotless Permanent Magnet Motors: Analytical Modeling, Optimization, Design and Torque Measurement Methods

A New Standstill Position Detection Technique for Nonsalient Permanent-Magnet Synchronous Motors Using the Magnetic Anisotropy Method

Torque Measurement Methods for Very High Speed Synchronous Motors

A novel soft cardiac assist device based on a dielectric elastomer augmented aorta: An in vivo study

Study of Various Winding Topologies for Self-Shielding Induction Cookers