Results 1 to 10 of about 142,003 (198)

Antagonist Concepts of Polypyrrole Actuators: Bending Hybrid Actuator and Mirrored Trilayer Linear Actuator [PDF]

open access: yesPolymers, 2021
Following the natural muscle antagonist actuation principle, different adaptations for “artificial muscles” are introduced in this work. Polypyrrole (PPy) films of different polymerization techniques (potentiostatic and galvanostatic) were analyzed and their established responses were combined in several ways, resulting in beneficial actuation modes. A
Rudolf Kiefer   +2 more
exaly   +4 more sources

A Small-Scale Hopper Design Using a Power Spring-Based Linear Actuator [PDF]

open access: yesBiomimetics, 2023
Hopping locomotion has the potential to enable small-scale robots to maneuver lands quickly while overcoming obstacles bigger than themselves. To make this possible, in this paper, we propose a novel design of a high-power linear actuator for a small ...
Seon-Gyo Yang   +3 more
doaj   +2 more sources

Linear pneumatic actuator [PDF]

open access: yesMATEC Web of Conferences, 2017
The paper presents a linear pneumatic actuator with short working stroke. It consists of a pneumatic motor (a simple stroke cylinder or a membrane chamber), two 2/2 pneumatic distributors “all or nothing” electrically commanded for controlling the intake/
Avram Mihai   +3 more
doaj   +2 more sources

Self-Tuning Control Using an Online-Trained Neural Network to Position a Linear Actuator [PDF]

open access: yesMicromachines, 2022
Linear actuators are widely used in all kinds of industrial applications due to being devices that convert the rotation motion of motors into linear or straight traction/thrust motion.
Rodrigo Hernandez-Alvarado   +3 more
doaj   +2 more sources

Investigation on a Linear Piezoelectric Actuator Based on Stick-Slip/Scan Excitation

open access: yesActuators, 2021
To perform a high resolution and long stroke application in optical precision instruments, a linear piezoelectric actuator operated in stick-slip/scan modes for driving a linear motion table is presented.
Yunlai Shi, Chengshu Lou, Jun Zhang
doaj   +3 more sources

Thermal analysis of an electromagnetic linear actuator

open access: yesAdvances in Mechanical Engineering, 2017
This article presents a new electromagnetic linear actuator applied in the electromagnetic-driven valve train. To clarify the actuator’s temperature rise and heat distribution, a heat transfer model was established by analyzing the complex heat exchange ...
Jianguo Dai   +3 more
doaj   +2 more sources

Design Methodology of a Dual-Halbach Array Linear Actuator with Thermal-Electromagnetic Coupling [PDF]

open access: yesSensors, 2016
This paper proposes a design methodology for linear actuators, considering thermal and electromagnetic coupling with geometrical and temperature constraints, that maximizes force density and minimizes force ripple.
Paulo Roberto Eckert   +4 more
doaj   +2 more sources

Design and experimental research of an improved stick–slip type piezo-driven linear actuator

open access: yesAdvances in Mechanical Engineering, 2015
A piezo-driven linear actuator based on the improved stick–slip principle is developed in this article. With the help of two piezo-stacks and flexure hinges, the preload force can be changed, so the designed actuator can realize relatively large linear ...
Jianping Li   +4 more
doaj   +2 more sources

Design and Control of New Brake-by-Wire Actuator for Vehicle Based on Linear Motor and Lever Mechanism

open access: yesIEEE Access, 2021
The brake-by-wire actuator was considered to be the next generation of vehicle brake, which uses cables to transmit signals and energy, and uses electric motor instead of hydraulic element or pneumatic element.
Fei Xiao   +5 more
doaj   +1 more source

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