Results 21 to 30 of about 6,933 (260)

A Charge Controller for Synchronous Linear Operation of Multiple Piezoelectric Actuators

open access: yesIEEE Access, 2019
The charge controller can greatly improve the hysteresis of the piezoceramic without the sensor. It is widely used in open-loop controlled nano-positioning systems.
Tao Jin   +3 more
doaj   +1 more source

Comparison of smart panels for tonal and broadband vibration and sound transmission active control

open access: yesInternational Journal of Smart and Nano Materials, 2020
This paper presents a comprehensive overview of the principal features of smart panels equipped with feed-forward and feedback systems for the control of the flexural response and sound transmission due respectively to tonal and to stochastic broadband ...
Paolo Gardonio   +2 more
doaj   +1 more source

An Umbrella-Shaped Linear Piezoelectric Actuator Based on Stick-Slip Motion Principle

open access: yesIEEE Access, 2019
Piezoelectric actuators are widely utilized in many research and industrial fields, since they could achieve high positioning accuracy based on inverse piezoelectric effect.
Jiafeng Yao   +6 more
doaj   +1 more source

Optimal Placement and Active Control Methods for Integrating Smart Material in Dynamic Suppression Structures

open access: yesVibration, 2023
To simulate a lightweight structure with integrated actuators and sensors, two-dimensional finite elements are utilized. The study looks at the optimal location and active vibration control for a piezoelectric smart flexible structure.
Amalia Moutsopoulou   +4 more
doaj   +1 more source

Path-length control for a reflector antenna using piezoelectric actuators and a focus adjustment mechanism

open access: yesNihon Kikai Gakkai ronbunshu, 2016
A novel method for recovering antenna gains of a reflector antenna system using piezoelectric stack actuators and a focus adjustment mechanism is developed and its feasibility is investigated.
Hiroaki TANAKA
doaj   +1 more source

Aluminum Nitride Out-of-Plane Piezoelectric MEMS Actuators

open access: yesMicromachines, 2023
Integrating microelectromechanical systems (MEMS) actuators with low-loss suspended silicon nitride waveguides enables the precise alignment of these waveguides to other photonic integrated circuits (PICs).
Almur A. S. Rabih   +3 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Individual drive and control of piezoelectric actuators with a single power supply unit by using variable resistors

open access: yesNihon Kikai Gakkai ronbunshu, 2018
A new method of driving and controlling multiple piezoelectric actuators individually with a single power supply unit using variable resistors was developed, and its effectiveness was investigated.
Anzu SUMITA   +2 more
doaj   +1 more source

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