Results 51 to 60 of about 3,437 (181)

Study on the Vibration Characteristics of Separated Armature Assembly in an Electro-Hydraulic Servo Valve Under Interference Fit

open access: yesActuators
The electro-hydraulic servo valve is a critical component that transforms electrical signals into hydraulic signals, thereby controlling the hydraulic system. It finds extensive application in precision control systems.
Tong Li   +4 more
doaj   +1 more source

Adaptive mixing formation control of multiquadrotor unmanned aerial vehicle systems

open access: yesAsian Journal of Control, Volume 28, Issue 3, Page 1073-1085, May 2026.
Abstract This paper presents a distributed adaptive mixing control (AMC) design for formation maintenance of systems of multiquadrotor UAVs (q‐UAVs) during commanded path‐tracking maneuvers. The proposed formation control scheme has a two‐level structure. The high level defines the desired trajectories for rigid and persistent formation acquisition and
Nasrettin Köksal   +2 more
wiley   +1 more source

THE STUDY OF STRESS-STRAIN STATE OF CONCRETE BENDING ELEMENT REINFORCED WITH CONVENTIONAL REINFORCEMENT, WITH AMENDMENTS NO. 1 TO SNIP 2.03.01-84*

open access: yesNauka ta progres transportu, 2009
This article presents the results of experimental-and-theoretical research of stressed-and-strained state of flexible ferro-concrete structural member provided with the conventional steel reinforcement and subjected to bending as per Modification № 1 to ...
I. I. Kyrpa, P. O. Pshinko
doaj  

Experimental studies of reinforced concrete beams with longitudinal armature of class A500S reinforced by composite system RUREDIL X MESH GOLD.

open access: yesNauka ta progres transportu, 2011
Strengthening of reinforced concrete with longitudinal reinforcement class (A500С) composite beam system Ruredil X Mesh Gold substantially increased their strength, hardness and fracture toughness.
I.V. Melnyk   +3 more
doaj  

Analysis of in-bore magnetic field in C-shaped armature railguns

open access: yesDefence Technology, 2019
In order to analysis the distribution characteristics of in-bore magnetic field for C-shaped armature electromagnetic railgun, a computational model considering dynamic contact pressure is established.
Qiang Yin   +3 more
doaj   +1 more source

Understanding the behaviour of magnetic field distribution of railgun under transient conditions using finite element method

open access: yesMeasurement: Sensors
The magnetic field distribution in the rails is a crucial factor in comprehending railgun behaviour. The projectile's rapid movement has a significant impact on the magnetic field.
R. Karpagam   +3 more
doaj   +1 more source

Influence of Winding Configurations and Stator/Rotor Pole Combinations on Field Back-EMF Ripple in Switched Flux Hybrid Excited Machines

open access: yesEnergies
Similar to armature back electromotive force (armature back-EMF), the back-EMF also exists in the field winding of hybrid excited machines. However, the existence of field back electromotive force (field back-EMF) is harmful to the safe and stable ...
Zhiyu Yang   +5 more
doaj   +1 more source

Dynamic Inductance Gradient Analysis of Series-Enhanced Four-Rail Electromagnetic Launcher

open access: yesIEEE Access
To accurately describe the dynamic inductance gradient during the operation process of the series enhanced four-rail electromagnetic rail launcher, an equivalent geometric model based on skin depth is constructed.
Bo-Lin Cai, Gang Feng, Ke-Feng Yang
doaj   +1 more source

INFLUENCE OF GEOMETRICAL PARAMETERS OF THE INDUCTOR AND ARMATURE ON THE INDICATORS OF A LINEAR PULSE ELECTROMECHANICAL CONVERTER OF AN ELECTRODYNAMIC TYPE

open access: yesElectrical engineering & Electromechanics, 2019
Purpose. The aim of the paper is to study the influence of geometrical parameters, namely, the number of layers and the cross section of the copper tire of the inductor and the armature coils on the power and speed indicators of a linear pulse ...
V. F. Bolyukh   +2 more
doaj   +1 more source

Research on Armature Structure Optimization and Performance of Asynchronous Induction Coil Thruster

open access: yesInternational Transactions on Electrical Energy Systems
Excessive armature mass fraction in asynchronous induction coil thrusters critically constrains payload capacity and propulsion efficiency. This study addresses this limitation through two lightweight strategies: axial height reduction and dual-segment ...
Wei Li, Qi Meng, Ling Xiong, Lu Zhang
doaj   +1 more source

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