A review of ultrasonic reflectometry for the physical characterization of lubricated tribological contacts: history, methods, devices, and technological trends

M Schirru, M Varga - Tribology Letters, 2022 - Springer
Although “film thickness” and “viscosity” represent two of the most important physical
parameters in lubricated tribological contacts, their in situ measurement in tribosystems is …

Programming shape-morphing electroactive polymers through multi-material topology optimisation

R Ortigosa, J Martínez-Frutos, AJ Gil - Applied Mathematical Modelling, 2023 - Elsevier
This paper presents a novel engineering strategy for the design of Dielectric Elastomer (DE)
based actuators, capable of attaining complex electrically induced shape morphing …

Piezoelectric MEMS resonator-based oscillator for density and viscosity sensing

T Manzaneque, V Ruiz-Díez, J Hernando-García… - Sensors and Actuators A …, 2014 - Elsevier
The resonant characteristics of a mechanical resonator immersed in liquid provide valuable
parameters for density and viscosity sensing. In particular, the combination of …

Structural design for desired eigenfrequencies and mode shapes using topology optimization

TD Tsai, CC Cheng - Structural and Multidisciplinary Optimization, 2013 - Springer
A technique is proposed for determining the material distribution of a structure to obtain
desired eigenmode shapes for problems of maximizing the fundamental eigenfrequency …

Flow-through sensor based on piezoelectric MEMS resonator for the in-line monitoring of wine fermentation

J Toledo, V Ruiz-Díez, G Pfusterschmied… - Sensors and Actuators B …, 2018 - Elsevier
The traditional procedure followed by winemakers for monitoring grape must fermentation is
not automated, has not enough accuracy or has only been tested in discrete must samples …

Design-dependent performance of self-actuated and self-sensing piezoelectric-AlN cantilevers in liquid media oscillating in the fundamental in-plane bending mode

M Kucera, E Wistrela, G Pfusterschmied… - Sensors and Actuators B …, 2014 - Elsevier
In this work the electrical performance of micromachined piezoelectric cantilevers having
different designs is investigated in liquid environment, thus making most beneficially use of …

[HTML][HTML] A computational framework for topology optimisation of flexoelectricity at finite strains considering a multi-field micromorphic approach

R Ortigosa, J Martínez-Frutos, AJ Gil - Computer Methods in Applied …, 2022 - Elsevier
This paper presents a novel in-silico framework for the design of flexoelectric energy
harvesters at finite strains using topology optimisation. The main ingredients of this work can …

Thermoelastic damping in the size-dependent microplate resonators based on modified couple stress theory

ZY Zhong, WM Zhang, G Meng… - Journal of …, 2014 - ieeexplore.ieee.org
The dynamic properties and behaviors of microplate resonators have been experimentally
shown to be size dependent. The thermoelastic damping plays an important role on the …

In-silico design of electrode meso-architecture for shape morphing dielectric elastomers

J Martínez-Frutos, R Ortigosa, AJ Gil - Journal of the Mechanics and Physics …, 2021 - Elsevier
This paper presents a novel in-silico tool for the design of complex multilayer Dielectric
Elastomers (DEs) characterised by recently introduced layer-by-layer reconfigurable …

Electrode-shaping for the excitation and detection of permitted arbitrary modes in arbitrary geometries in piezoelectric resonators

JS Pulskamp, SS Bedair, RG Polcawich… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
This paper reports theoretical analysis and experimental results on a numerical electrode
shaping design technique that permits the excitation of arbitrary modes in arbitrary …