Results 1 to 10 of about 2,879,970 (295)

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   +4 more sources

High mechanical advantage design of six-bar Stephenson mechanism for servo mechanical presses

open access: yesAdvances in Mechanical Engineering, 2016
This article proposed a two-phase design scheme of Stephenson six-bar working mechanisms for servo mechanical presses with high mechanical advantage. In the qualitative design phase, first, a Stephenson six-bar mechanism with a slide was derived from ...
Jianguo Hu, Yousong Sun, Yongqi Cheng
doaj   +2 more sources

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

Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism [PDF]

open access: yesEngineering and Technology Journal, 2020
An electro-hydraulic elevator is a new type of enhanced elevators that are used in low-rise buildings that do not exceed more than three floors. In this paper, an electro-hydraulic servo system for controlling the speed of a hydraulic elevator prototype ...
Jamal Mohammed   +2 more
doaj   +1 more source

Tandem control method of two axes with different reduction ratios (Comparison of three methods to equalize the transmission torque for a load)

open access: yesNihon Kikai Gakkai ronbunshu, 2023
Tandem control is the control to drive one load with multiple motors. We compare three tandem control methods to suppress the natural vibration of the system: 1) a common torque method, 2) an average rate feedback method, 3) an individual rate feedback ...
Akihiro MAEKAWA, Takuya IMAEDA
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

Resonant Suppression Method Based on PI control for Serial Manipulator Servo Drive System

open access: yesScience Progress, 2020
A typical serial manipulator consists of a servo motor, a serial mechanism and an independent joint placed between the motor and the serial mechanism.
Xiaopeng Li   +3 more
doaj   +1 more source

A proposal of control system for natural frequency reducing method of anti-vibration apparatus

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In the field of precision positioning such as semiconductor exposure apparatus, weak disturbance vibration from the floor influences processing accuracy.
Sanga TAKAGI, Shinji WAKUI
doaj   +1 more source

Tandem control method of two axes with different reduction ratios (Comparison of three methods for the natural vibration suppression)

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Tandem control is the control to drive one load with multiple motors. Its basic method is a common torque method. The common torque method is that the position signal and the rate signal from the motor 1 feedbacks to obtain the torque reference value of ...
Akihiro MAEKAWA   +3 more
doaj   +1 more source

Robust controller design for dual-stage actuator against resonant frequency variations in load devices

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper presents a controller design approach for load devices to provide robust properties against variations in resonant frequencies and disturbance forces in the mechanism.
Yusaku SHINOHARA   +4 more
doaj   +1 more source

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