Results 21 to 30 of about 3,404,001 (242)

Feedback and Control of Linear Electromagnetic Actuators for Flapping Wing MAVs

open access: yesAerospace, 2023
We present a method for generating feedback and controlling multi-coil linear electromagnetic actuators for flapping wing systems. This has been achieved with a system capable of self-lifting, constructed using 3D-printed structures and miniaturised ...
Blake McIvor, John McGuire, Javaan Chahl
doaj   +1 more source

On force generation in electro-fluidic linear actuators with ferrofluid

open access: yesScientific Reports, 2022
In ferrofluid actuation systems, forces are generated by actively controlling pressure and flow within the fluid using an applied magnetic field. There are multiple contributing factors in force generation involving complex non-linear couplings between ...
Matthew O. T. Cole, James Moran
doaj   +1 more source

Rod-shaped linear inertial type piezoelectric actuator / [PDF]

open access: yes, 2023
This article presents a numerical and experimental investigation of a novel rod-shaped linear piezoelectric actuator that consists of a square cross-section-shaped rod with eight piezo ceramic plates and a cylindrical guidance rail.
Andrius Čeponis   +9 more
core   +1 more source

Fault Monitoring and Diagnosis of Actuators in Electromagnetic Valve-Train Based on Neural Networks Optimization Algorithm

open access: yesIEEE Access, 2019
In order to realize fully flexible variable valve lift and improve the intake efficiency of the engine, a new electromagnetic valve-train (EMVT) was designed to replace the traditional CAM in the engine valve-train.
Tongjun Guo   +4 more
doaj   +1 more source

Energy Efficiency of Linear Electromagnetic Actuators for Flapping Wing Micro Aerial Vehicles

open access: yesEnergies, 2020
The development of flapping wing systems has been restricted by high power density requirements, comparatively large forces and the requirement for light weight.
Blake McIvor, Javaan Chahl
doaj   +1 more source

Electromechanical energy conversion inside an electromagnetic vibratory actuator: Modeling, simulation, and validation [PDF]

open access: yesFME Transactions
This paper covers the development and validation of a nonlinear mathematical model of an electromagnetic vibratory actuator used in vibratory conveyors.
Ilić Uroš Lj.   +3 more
doaj   +1 more source

Optimal Design and Experimental Research on a New Hybrid Electromagnetic Actuator for Vehicles

open access: yesIEEE Access, 2020
In this study, a new hybrid electromagnetic actuator (HEMA) that integrates a cylindrical permanent magnet linear synchronous motor and a hydraulic damper is proposed and designed to solve the problem of poor reliability of a linear electromagnetic ...
Xiangpeng Meng   +3 more
doaj   +1 more source

An Interval Approach for Robust Parameterization of Controllers for Electric Drives

open access: yesMachines, 2022
Uncertain models, e.g., due to component variations and measurement errors during system identification, in combination with the desire to be able to provide guarantees regarding system performances a priori, represent major challenges for users when ...
Philipp Schäfer, Stefan Krebs
doaj   +1 more source

Input-output linearization and fractional robust control of a non-linear system [PDF]

open access: yes, 2001
This article deals with the association of a linear robust controller and an input-output linearization feedback for the control of a perturbed and non-linear system.
Oustaloup, Alain   +7 more
core   +1 more source

Analysis of the impact of changes in the stator magnetic circuit on static properties of the electromagnetic linear motor model [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2018
In this paper, the static characteristics as a function of changes in geometric dimensions of the stator magnetic circuit of the linear stepper actuator with permanent magnets is presented.
Krzysztof Just, Paweł Piskur
doaj   +1 more source

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