Results 21 to 30 of about 10,463 (163)

Design and development of the apply force tester based on pneumatic servo control

open access: yesMATEC Web of Conferences, 2015
Based on the requirement of compression and tension test in toy safety standard, combined with the PLC technology, taken pneumatic servo system to design and develop the automatic apply force tester and realized to precise control of the force and ...
Xu Xiaoguang   +4 more
doaj   +1 more source

Hovering of coaxial Trirotor helicopter constructed with coaxial mechanism driven by a motor

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This paper proposes a coaxial trirotor helicopter constructed with coaxial mechanism driven by one motor. There two types of trirotor unmanned aerial vehicles (UAVs) are existed.
Yoshihiro TAKITA   +2 more
doaj   +1 more source

Linkage and Cam Design with MechDev based on Non-Uniform Rational B-Splines

open access: yesMachines, 2020
Several software products exist in order to support engineers during the mechanism design process. The software “Mechanism Developer” (abbr. MechDev) is one of these products. MechDev provides many functionalities concerning the kinematic and
Mario Müller   +3 more
doaj   +1 more source

Mechanism of temperature-induced zero drift on electro-hydraulic servo valve

open access: yesAIP Advances, 2021
An electro-hydraulic servo valve is objectively asymmetrical in the process of fabrication and assembly, and the zero position is the result of comprehensive adjustment.
Li Ma, Hao Yan, Cunkun Cai, Yukai Ren
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

Mechanism of Temperature’s Acting on Electro-Hydraulic Servo Valve

open access: yesIEEE Access, 2019
To understand temperature's influence on the electro hydraulic servo valve, a theoretical model of describing the detailed mechanism is necessary. For a servo valve experiencing actual working conditions, the temperature variation acts on the performance
Hao Yan, Yang Liu, Li Ma
doaj   +1 more source

Accurate transmission performance evaluation of servo-mechanisms for robots

open access: yesRobotics and Computer-Integrated Manufacturing, 2022
Abstract: The Servo-Mechanisms (SMs) mounted in industrial robots joints are a major source of positioning accuracy errors. To improve robots precision performance, researchers have been focusing on the development of novel SMs design and control strategies, which need extensive experimental analyses to tune their parameters.
Pietro Bilancia   +4 more
openaire   +1 more source

Fractional-Order Modeling and Identification for Dual-Inertia Servo Inverter Systems with Lightweight Flexible Shaft or Coupling

open access: yesFractal and Fractional
To effectively mitigate resonance in dual-inertia servo inverter systems with a lightweight flexible shaft or coupling, the precise modeling of the dual-mass mechanism is essential.
Xiaohong Wang   +4 more
doaj   +1 more source

Analysis and experimental validation of a pressure control method using magneto-rheology fluid flows

open access: yesThe Journal of Engineering, 2018
In this study, a spool actuating mechanism using controlled pressure difference is proposed for a large hydraulic servo valve. The actuating mechanism is accomplished by tuning magneto-rheological (MR) fluid flow.
Fan Wang, Ning Guo, Linxiang Wang
doaj   +1 more source

Research on thermodynamic modeling and temperature prediction of double flapper-nozzle servo valves

open access: yesCase Studies in Thermal Engineering
The thermal characteristic design of the aerospace servo valve is of significant importance due to the high temperature operating conditions. This paper aims to study the law of temperature variation of the internal chambers and shell of the servo valve ...
Lei Li, Gen Wang, Libo Qiu, Cunkun Cai
doaj   +1 more source

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