Results 1 to 10 of about 11,763 (288)

Investigation of temperature rise characteristics in the pre-stage of a deflector jet servo valve [PDF]

open access: yesScientific Reports
In aerospace equipment, the deflector jet servo valve is a high-end core control component of electro-hydraulic servo systems. The pre-stage is crucial because of the compact structure and complex jet morphology.
Li Ma   +4 more
doaj   +2 more sources

No-backlash control system by two-motor drive (The analysis and experiments on the influence of the viscous friction difference between the two motors)

open access: yesNihon Kikai Gakkai ronbunshu, 2022
A no-backlash drive control technique which used two motors for forward rotation and reverse rotation to drive one load so as to cancel backlash has been using the same motor so far.
Akihiro MAEKAWA, Kento KOKUBO
doaj   +1 more source

Modelling of Electro-mechanical Servo System Based on the Planetary Roller Screw Mechanism [PDF]

open access: yesMATEC Web of Conferences, 2020
Taking the electro-mechanical servo system as the research object, considering the contact stiffness, friction and clearance of the main components in the electro-mechanical servo system, the analysis model of the electro-mechanical servo system based on
Zhang Jianxin   +3 more
doaj   +1 more source

Feasibility analysis of novel Maglev EDM by comparing with conventional micro EDM

open access: yesScientific Reports, 2022
EDM is the most popular unconventional machining process. The present technology of EDM consists of a pulsed or capacitive type power supply in which the pulsed type power supply is more popular and effective.
Mangal Singh Sisodiya   +2 more
doaj   +1 more source

Research on frequency characteristic test method of servo mechanism based on schroeder phased harmonic signal [PDF]

open access: yesE3S Web of Conferences, 2019
The traditional frequency response test mainly adopts the sweep frequency sinusoid signal testing method, which has high accuracy, but takes a long time. This paper introduces the basic theory of the Schroeder Phased Harmonic Signal (SPHS) testing method.
Su Changpeng   +4 more
doaj   +1 more source

Hybrid Visual Servo Control of a Robotic Manipulator for Cherry Tomato Harvesting

open access: yesActuators, 2023
This paper aims to develop a visual servo control of a robotic manipulator for cherry tomato harvesting. In the robotic manipulator, an RGB-depth camera was mounted to the end effector to acquire the poses of the target cherry tomatoes in space.
Yi-Rong Li   +3 more
doaj   +1 more source

No-backlash control system by two-motor drive (The analyses of backlash occurrence mechanism)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
We analyze backlash occurrence mechanism of a no-backlash drive control technique in which two motors drive a load axis, as one is for a plus direction and another is for a minus direction, into the simulation and the experiment.
Akihiro MAEKAWA, Yusuke SUGIURA
doaj   +1 more source

No-backlash control system by two-motor driver (The analysis and experiments on total current reduction)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
A no-backlash drive control technique in which two motors drive a load axis, as one is for a forward direction and another is for a reverseone,hastwo problems :1)the drive system has a remarkable power loss, 2) the 1st natural frequency of the drive ...
Akihiro MAEKAWA, Yusuke SUGIURA
doaj   +1 more source

Mechanism Analysis of Time-Dependent Characteristic of Dynamic Errors of Machine Tools

open access: yesMachines, 2022
The Dynamic Errors (DEs) of individual axes present Time-dependent Characteristics (TDCs) because the setpoints, as the input of the servo feed system, change in velocity, acceleration and jerk during the feed motion.
Dun Lyu   +4 more
doaj   +1 more source

Design of a servo mechanism for controlling missile fins in pitch and yaw planes [PDF]

open access: yesScientific Technical Review
This paper explores the design and implementation of a servo mechanism utilizing DC electromotors for control of missile fin position. This research is focused on the analysis and optimization of DC electromotors to enhance the performance of servo ...
Jovičić Nebojša   +3 more
doaj   +1 more source

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