Results 21 to 30 of about 148,529 (236)

Control of an electromechanical actuator for camless engines [PDF]

Proceedings of the 2003 American Control Conference, 2003., 2004
This paper presents a gray box approach for identifying physical parameters of an electromechanical actuator based on frequency response data. A feedforward and linear-quadratic regulator feedback controller was developed to control the EMCV actuator for soft seating.
Chun Tai, Tsu-Chin Tsao
openaire   +2 more sources

Molecular forces in electromechanical integrated electrostatic harmonic actuator

AIP Advances, 2017
Authors invent an electromechanical integrated electrostatic harmonic actuator. It is more favorable for miniaturization of the electromechanical devices.
Lizhong Xu, Xufei Shi
doaj   +1 more source

Optimizing the Location of the Piezoelectric Actuator and Analyzing Its Effect on the Dynamics of Asymmetric Flexible Spacecraft

Aerospace, 2023
To address the challenge of optimizing the placement of actuators on an asymmetric spacecraft continuum system, this paper develops a rigid–flexible electromechanical coupling dynamic model that integrates the interactions among rigidity, flexibility ...
Kai Cao, Renyuan Xie, Jianmin Zhou, Xiaowei Zhang, Jingji Wang, Shuang Li   +5 more
doaj   +1 more source

Optimization and characterization by finite element method of an electromechanical actuator for more electric aircraft applications

, 2006
The future More Electric Aircraft (MEA) technology focus on increasing the use of electrical equipment to a larger extent, e.g. replacing conventional hydraulic and pneumatic actuators with electromechanical or electro hydrostatic actuators to reduce ...
Torabzadeh-Tari, Mohsen, Engdahl, Göran, Austrin, Lars, Larsen, Martin   +3 more
core   +2 more sources

Numerical research on the cooling performance of an aircraft electromechanical actuator based on heat pipes-fuel and heat pipes-ram air cooling conception

Advances in Mechanical Engineering, 2022
Numerical research is carried out on the cooling performance of an aircraft electromechanical actuator (EMA) using heat pipes. The theoretical model is established to describe the heat transfer processes in the EMA, which is validated by comparing the ...
Wenlei Lian, Jinhua Zhang, Hao Wan
doaj   +1 more source

Sensor-less parameter estimation of electromagnetic actuator for shunt damping

Nihon Kikai Gakkai ronbunshu, 2015
Electromagnetic shunt damping is a sensor-less passive damping technique using an electromagnetic actuator. The accurate values of the parameters of the system are essentially required for designing a controller in the damping technique.
Toru IKEGAME, Kentaro TAKAGI, Tsuyoshi INOUE, Ichiro JIKUYA   +3 more
doaj   +1 more source

Joint state and electromechanical actuator fault estimation in unmanned aerial vehicles using a hybrid bidirectional long short-term memory extended Kalman filter framework

Electrical engineering & Electromechanics
Introduction. Accurate state and electromechanical actuator fault estimation is essential for ensuring reliable navigation and fault-tolerant operation of unmanned aerial vehicles (UAVs) operating under noisy and uncertain environments.
K. Khemiri, K. Abidette, R. Djebali
doaj   +1 more source

Dynamic Electromechanical Coupling of Piezoelectric Bending Actuators [PDF]

Micromachines, 2016
Electromechanical coupling defines the ratio of electrical and mechanical energy exchanged during a flexure cycle of a piezoelectric actuator. This paper presents an analysis of the dynamic electromechanical coupling factor (dynamic EMCF) for cantilever based piezoelectric actuators and provides for the first time explicit expressions for calculation ...
Mostafa R. A. Nabawy, William J. Crowther   +1 more
openaire   +3 more sources

An Approach to the Prototyping of an Optimized Limited Stroke Actuator to Drive a Low Pressure Exhaust Gas Recirculation Valve

Sensors, 2016
The purpose of this article is to describe the design of a limited stroke actuator and the corresponding prototype to drive a Low Pressure (LP) Exhaust Gas Recirculation (EGR) valve for use in Internal Combustion Engines (ICEs). The direct drive actuator
Christophe Gutfrind, Laurent Dufour, Vincent Liebart, Jean-Claude Vannier, Pierre Vidal   +4 more
doaj   +1 more source

Electronically Controlled Actuators for a Micro Wind Turbine Furling Mechanism

Energies, 2020
This paper presents two electromechanical systems used for the overspeed protection of small wind turbines. The actuators have the purpose of rotating the back rudder (tail vane) of the wind turbine when the blades are overspeeding.
Mihai Chirca, Marius Dranca, Claudiu Alexandru Oprea, Petre-Dorel Teodosescu, Alexandru Madalin Pacuraru, Calin Neamtu, Stefan Breban   +6 more
doaj   +1 more source