Results 11 to 20 of about 183,753 (281)

Stress Control of a Piezoelectric Lumped-element Model − ‎Theoretical Investigation and Experimental Realization [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
This contribution focuses on force- and stress-tracking of a multi-degree of freedom system by eigenstrain actuation. The example under consideration is an axially excited piezoelectric bar which can be modeled as a lumped parameter system.
Juergen Schoeftner   +2 more
doaj   +1 more source

Fractional-Order Modeling of Piezoelectric Actuators with Coupled Hysteresis and Creep Effects

open access: yesFractal and Fractional, 2023
A novel fractional-order model, incorporating coupled hysteresis and creep effects, is proposed for typical piezoelectric actuators in this study. Throughout the actuation process, various nonlinear behaviors such as piezoelectric hysteresis, non-local ...
Yifan Xu   +4 more
doaj   +1 more source

Microfluidic Cell Transport with Piezoelectric Micro Diaphragm Pumps

open access: yesMicromachines, 2021
The automated transport of cells can enable far-reaching cell culture research. However, to date, such automated transport has been achieved with large pump systems that often come with long fluidic connections and a large power consumption.
Agnes Bußmann   +7 more
doaj   +1 more source

Acoustic Biosensors and Microfluidic Devices in the Decennium: Principles and Applications

open access: yesMicromachines, 2021
Lab-on-a-chip (LOC) technology has gained primary attention in the past decade, where label-free biosensors and microfluidic actuation platforms are integrated to realize such LOC devices.
Minu Prabhachandran Nair   +2 more
doaj   +1 more source

Review on high temperature piezoelectric ceramics and actuators based on BiScO3–PbTiO3 solid solutions [PDF]

open access: yesJournal of Advanced Dielectrics, 2014
In recent years, industries in the fields of petrochemical, automotive, and aerospace have expressed their interest in utilizing piezoelectric actuators for high-temperature (HT) operations at the temperature above 150°C.
Jianguo Chen   +2 more
doaj   +1 more source

Design and Experiment of a Clamping-Drive Alternating Operation Piezoelectric Actuator

open access: yesMicromachines, 2023
In recent years, piezoelectric actuators, represented by inertial and inchworm actuators, have been widely applied because of their high accuracy and excellent responsiveness.
Mengxin Sun, Zhenwei Cao, Lukai Zheng
doaj   +1 more source

The Development of a PiezoelectricI Fan System for the Flapping Wing Micro-Air-Vehicle Application [PDF]

open access: yes, 2008
A micro air vehicle (MAV) is a semiautonomous airborne vehicle which measures less than 15 cm in any dimension. It can be used to access situations too dangerous for direct human intervention, e.g., explosive devices planted in buildings and video ...
Chung, Hsien-Chun
core   +4 more sources

Review on Multi-Degree-of-Freedom Piezoelectric Motion Stage

open access: yesIEEE Access, 2018
Multi-degree-of-freedom (multi-DOF) piezoelectric motion stage is an important part of modern manufacturing industry. In order to perform high precision outputs in a large travel range, various multi-DOF piezoelectric motion stages have been proposed and
Yingxiang Liu, Jie Deng, Qi Su
doaj   +1 more source

Optimization design of multi-material micropump using finite element method [PDF]

open access: yes, 2009
This paper presents a micropump fabricated from low-cost materials with specific goal of cost reduction. The micropump does not require any valve flap and comprises of one plastic pump polyether-ether-ketone (PEEK) body, one metal diaphragm, and three
Wacklerle, M.   +6 more
core   +1 more source

Experiment and Modeling on Macro Fiber Composite Stress-Induced Actuation Function Degradation

open access: yesApplied Sciences, 2019
The effect of stress depolarization will cause actuation function degradation of a piezoelectric actuator, which can eventually trigger function failure of the piezoelectric smart structure system.
Wei Wang, Zikuo Zhang, Zhichun Yang
doaj   +1 more source

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