Results 11 to 20 of about 2,867 (214)

Sensorless Speed/Torque Control of DC Machine Using Artificial Neural Network Technique

open access: yesTikrit Journal of Engineering Sciences, 2016
In this paper, Artificial Neural Network (ANN) technique is implemented to improve speed and torque control of a separately excited DC machine drive. The speed and torque sensorless scheme based on ANN is estimated adaptively.
Rakan Kh. Antar, Ahmed A. Allu
doaj   +3 more sources

Two-step sine movable tooth drive

open access: yesAdvances in Mechanical Engineering, 2017
For sine movable tooth drive, the movable tooth number must be increased to obtain large speed ratio of the drive which increases largely radial size of the drive. Here, a two-step sine movable tooth drive is proposed.
Lizhong Xu, Wentao Song, Ran Li
doaj   +1 more source

Toroidal drive with half stator

open access: yesAdvances in Mechanical Engineering, 2015
The toroidal drive can transmit large torque. However, it is a hard work to produce small toroidal stator which limits the miniaturization of the toroidal drive.
Lizhong Xu, Linping Fu
doaj   +1 more source

Permanent magnetic toroidal drive with half stator

open access: yesAdvances in Mechanical Engineering, 2017
A permanent magnetic toroidal drive with a half stator is proposed that avoids noise and mechanical vibrations. The effects of the system parameters on the output torque of the drive were investigated. A model machine was designed and produced.
Lizhong Xu, Ran Li, Wentao Song
doaj   +1 more source

Investigation of the Mechanical and Electromechanical Starting Characteristics of an Asynchronous Electric Drive of a Two-Piston Marine Compressor

open access: yesJournal of Marine Science and Engineering, 2021
In the article, the mechanical and electromechanical starting characteristics of an asynchronous electric drive of a two-piston ship compressor are investigated by a numerical method.
Sergei G. Chernyi   +3 more
doaj   +1 more source

ELECTRIC DRIVE SETTING TORQUE CALCULATION METHOD IN ELECTRIC DRIVE SHUT-OFF VALVE SYSTEM WITH RECTILINEA DISPLACEMENT OF THE VALVE CLOSURE

open access: yesЗаписки Горного института, 2018
A new method for calculating the setting torque magnitude of the electric drive in the electric drive shut-off system as the main elements ensuring the safety of oil pipelines and main gas pipelines is presented.
S. A. Vasin, E. V. Plakhotnikova
doaj   +1 more source

Parasitic Effects of PWM-VSI Control Leading to Torque Harmonics in AC Drives

open access: yesEnergies, 2021
Precise torque control without pulsations is one of the major quality issues in pulse-width modulated voltage-source inverter (PWM-VSI) drives. Theoretically, it could be postulated that at frequencies of some kHz, the machine’s inertia absorbs switching
Juriy Plotkin   +3 more
doaj   +1 more source

Research on Yaw Moment Control System for Race Cars Using Drive and Brake Torques

open access: yesVehicles, 2023
The yaw acceleration required for circuit driving is determined by the time variation of the yaw rate due to two factors: corner radius and velocity at the center of gravity. Torque vectoring systems have the advantage where the yaw moment can be changed
Ikkei Kobayashi   +9 more
doaj   +1 more source

Dynamics of the machine aggregate with a milling mechanism of the cotton bundle disassembler

open access: yesСовременные инновации, системы и технологии, 2022
The article covers the dynamics of the machine aggregate with a milling mechanism of the cotton bundle disassembler, taking into account the mechanical characteristics of the electric drive, technological resistance and torque of friction forces.
М.Т. Ходжиев   +2 more
doaj   +1 more source

Harmonic Drive with a Built-in Torque Sensor and Its Application to Torque Control

open access: yesJournal of Robotics and Mechatronics, 1991
In this paper, first a method of torque measurement using elasticity contained in harmonic drive system is outlined. This method of torque measurement does not require changing the structure of the driving system nor inserting a new elastic body for torque measurement.
Minoru Hashimoto   +2 more
openaire   +1 more source

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