Recent advances in the application of piezoelectric materials in microrobotic systems

A Fath, T ** materials
D Shen, J Wen, J Ma, Y Hu, R Wang, J Li - Sensors and Actuators A …, 2020 - Elsevier
Asymmetric inertial piezoelectric actuators are driven by the inertial impact difference
between the forward and backward cycle. Typical ways to create inertial impact difference …

Piezoelectric Actuators Application and Hysteresis Modelling: A Brief Survey

Y Yang - Open Access Library Journal, 2023 - scirp.org
In modern life and production, there exists a global energy crisis, an increasing demand for
advanced medical services, and a need to integrate and miniaturize industrial products. The …

Research on variable stiffness asymmetrical resonant linear piezoelectric actuator based on multi-modal drive

L He, X Yue, H Dou, X Ge, Z Wan… - Smart Materials and …, 2023 - iopscience.iop.org
In this paper, a linear piezoelectric motor with variable stiffness and asymmetric resonance
is proposed, which is driven by a single harmonic signal. Working in the resonant state …

On the effect of water-induced degradation of thin-film piezoelectric microelectromechanical systems

RP Dahl-Hansen, F Tyholdt, J Gjessing… - Journal of …, 2020 - ieeexplore.ieee.org
Lifetime and reliability in realistic operating conditions are important parameters for the
application of thin-film piezoelectric microelectromechanical systems (piezoMEMS) based …

Dynamic structural and contact modeling for a silicon hexapod microrobot

J Qu, J Choi, KR Oldham - Journal of …, 2017 - asmedigitalcollection.asme.org
This paper examines the dynamics of a type of silicon-based millimeter-scale hexapod,
focusing on interaction between structural dynamics and ground contact forces. These …

Design and analysis of varied gaits in elastic vibratory milli-robots

J Qu, B Zhang, KR Oldham - International Journal of Intelligent Robotics …, 2018 - Springer
This paper introduces a simple centimeter-scale robot design that uses one or more pairs of
piezoelectric, simultaneously-actuated legs to achieve multiple terrestrial gaits, notably …

[HTML][HTML] Electrochemically driven degradation of chemical solution deposited ferroelectric thin-films in humid ambient

RP Dahl-Hansen, JM Polfus, E Vøllestad… - Journal of Applied …, 2020 - pubs.aip.org
The ambient humidity significantly accelerates the degradation of lead zirconate titanate
(PZT) films in microelectromechanical systems; the cause of such degradation is under …

Structural robustness and actuation performance of multilayered thin-film actuators based on Ni-Co flexible substrate

BK Kim, Y Kim - Sensors and Actuators A: Physical, 2024 - Elsevier
This paper presents a comprehensive evaluation of multilayered thin-film actuators based
on metal substrates made of Ni and Co alloys. The focus was on improving the structural …

A novel design approach for micro-robotic appendages comprised of active and passive elements with disparate properties

A Milojević, M Shin, KR Oldham - Journal of Intelligent …, 2022 - journals.sagepub.com
Recent innovations in microsystems materials and fabrication permit the creation of complex
microactuation mechnisms with heterogeneous properties and behaviors. Meanwhile …