Results 21 to 30 of about 249,552 (211)

Structural Analysis and Improvement Design of Brake Pressure Valve Feedback Stage in Multivalve Parallel Brake System

open access: yesShock and Vibration, 2021
The wheel brake device is one of the most widely used landing deceleration devices in modern aircraft. For large aircraft, a multivalve parallel brake system is usually used.
Zhi-peng Huang   +6 more
doaj   +1 more source

Investigation of a Digital Hydraulic Valve Operated by Servo Motors

open access: yes, 2021
This paper describes a new type of digital hydraulic valve run by two servo motors. Digital hydraulics is a cutting edge technology, which saves more exhausted energy than conventional hydraulic valves.
Cetin, Muhammet Huseyin   +7 more
core   +4 more sources

Analysis and Suppression of Self-Excited Oscillations in Pressure Servo Valve System

open access: yesApplied Sciences, 2022
In this paper, the phenomenon of pressure servo valve system self-excited oscillation is studied, the dynamic model of the system is established, and the validity of the model is verified by experimental analysis.
Jian Huang   +4 more
doaj   +1 more source

Robust LQR Design Method for the Aero-Engine Integral Constant Pressure Drop Control Valve with High Precision

open access: yesAerospace, 2023
The closed-loop constant pressure drop control valve is widely used in aero-engine fuel servo metering systems. However, the available constant pressure drop control valve cannot realize servo tracking without static error and, often, a high proportional
Wenshuai Zhao   +4 more
doaj   +1 more source

An adjustable parameter water hammer wave hose testbench [PDF]

open access: yesE3S Web of Conferences, 2021
In this paper, based on the servo valve controlled pressure cylinder, a scheme of hydraulic pipeline adjustable parameters water hammer wave test system is proposed.
Wang Zhe   +3 more
doaj   +1 more source

Establishment and Experimental Verification of a Nonlinear Position Servo System Model for a Magnetically Coupled Rodless Cylinder

open access: yesActuators, 2022
The nonlinear characteristics of the pneumatic servo system are the main factors limiting its control accuracy. A new mathematical model of the nonlinear system of the valve control cylinder is proposed in order to improve the control accuracy of the ...
Yeming Zhang   +6 more
doaj   +1 more source

Sistem Kontrol Kadar Gas Karbon Monoksida (CO) Pada Aplikasi Modified Atmosphere Packaging (MAP) Berbasis Fuzzy Logic

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2020
Karbon Monoksida (CO) dalam teknologi makanan digunakan sebagai salah satu gas komponen penyusun dalam proses Modified Atmosphere Packaging (MAP). Karbon Monokida pada proses MAP digunakan untuk mempertahankan warna daging, dengan konsentrasi 0,3 hingga ...
Reza Supriyatna   +2 more
doaj   +1 more source

Measurement of the mass-flow-rate characterization parameters of high-pressure pneumatic servo slide valves

open access: yesScientific Reports, 2022
The mass-flow-rate characteristics of high-pressure pneumatic servo valves (HPSVs) have an important effect on the dynamic performance of high-pressure servo systems.
Dijia Zhang   +4 more
doaj   +1 more source

Comparison of oil output of servo valve when servo valve is stuck.

open access: yes, 2023
Comparison of oil output of servo valve when servo valve is stuck.
Qing Li (84975), Ling Zhong (209116)
core   +1 more source

Numerical Simulation of Jet Pipe Servo Valve [PDF]

open access: yes, 2020
The jet pipe servo valve (jet valve) is the most widely used flow control servo valve on aircrafts and spacecrafts. However, the valve has not been simulated accurately due to its special structure and complex internal flow field.
Junshuo Chen   +3 more
core   +1 more source

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