scholarly journals Vertical Vibration Suppression of a Railway Vehicle by Damping Control of an Air Spring with Flow Control Valve

2009 ◽  
Vol 40 (6) ◽  
pp. 103-110 ◽  
Author(s):  
Akihito KAZATO ◽  
Yoshiki SUGAHARA ◽  
Reiko KOGANEI ◽  
Kazushi SANADA
Keyword(s):  
Flow Control ◽  
Vibration Suppression ◽  
Control Valve ◽  
Vertical Vibration ◽  
Railway Vehicle ◽  
Flow Control Valve ◽  
Air Spring ◽  
Damping Control

1203 Development of Air Spring Car-body Tilt Control System using by Proportional Flow Control Valve

2009 ◽  
Vol 2009.18 (0) ◽  
pp. 103-104
Author(s):  
Akiyoshi UEKURA ◽  
Hiroyuki KATO ◽  
Kouji ASANO ◽  
Daisuke SHINAGAWA ◽  
Shoji NEGORO
Keyword(s):  
Control System ◽  
Flow Control ◽  
Control Valve ◽  
Body Tilt ◽  
Flow Control Valve ◽  
Air Spring ◽  
Car Body ◽  
Proportional Flow

A Multi-modes Flow Control Valve for Simplifying the Driving System of Pneumatic Soft Robots

2020 ◽  
pp. 1-1
Author(s):  
Yang Yang ◽  
Yongjian Zhao ◽  
Songyi Zhong ◽  
Yan Peng ◽  
Yi Yang ◽  
...  
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Soft Robots ◽  
Driving System

Pattern Recognition Approach to Fault Diagnosis in the DAMADICS Benchmark Flow Control Valve

2003 ◽  
Vol 36 (5) ◽  
pp. 861-866 ◽  
Author(s):  
A. Marciniak ◽  
C.D. Bocăială ◽  
R. Louro ◽  
J. Sa da Costa ◽  
J. Korbicz
Keyword(s):  
Pattern Recognition ◽  
Fault Diagnosis ◽  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Pattern Recognition Approach

Design and evaluation of orifice arrangement for particle-excitation flow control valve

2011 ◽  
Vol 171 (2) ◽  
pp. 283-291 ◽  
Author(s):  
Daisuke Hirooka ◽  
Koichi Suzumori ◽  
Takefumi Kanda
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve

Design and Analysis of a Flow-Control Valve With Controllable Pressure Compensation Capability for Mobile Machinery

2021 ◽  
Author(s):  
Bo Wang ◽  
Yunwei Li ◽  
Long Quan ◽  
Lianpeng Xia
Keyword(s):  
Pressure Drop ◽  
Flow Control ◽  
Pressure Difference ◽  
Control Valve ◽  
Flow Control Valve ◽  
Continuous Control ◽  
Small Flow ◽  
Pressure Compensation ◽  
Force Compensation ◽  
Control Accuracy

Abstract There are the problems in the traditional pressure-compensation flow-control valve, such as low flow control accuracy, small flow control difficulty, and limited flow range. For this, a method of continuous control pressure drop Δprated (i.e. the pressure drop across the main throttling orifice) to control flow-control valve flow is proposed. The precise control of small flow is realized by reducing the pressure drop Δprated and the flow range is amplified by increasing pressure drop Δprated. At the same time, it can also compensate the flow force to improve the flow control accuracy by regulating the pressure drop Δprated. In the research, the flow-control valve with controllable pressure compensation capability (FVCP) was designed firstly and theoretically analyzed. Then the sub-model model of PPRV and the joint simulation model of the FVCP were established and verified through experiments. Finally, the continuous control characteristics of pressure drop Δprated, the flow characteristics, and flow force compensation were studied. The research results demonstrate that, compared with the traditional flow-control valve, the designed FVCP can adjust the compensation pressure difference in the range of 0∼3.4 MPa in real-time. And the flow rate can be altered within the range of 44%∼136% of the rated flow. By adjusting the compensation pressure difference to compensate the flow force, the flow control accuracy of the multi-way valve is improved, and the flow force compensation effect is obvious.

scholarly journals Investigation of thermal mechanical coupling numerical simulation and theoretical study of k-shaped combined metal seal of downhole flow control valve

2021 ◽  
Vol 25 (4 Part B) ◽  
pp. 3053-3061
Author(s):  
Linfeng Zhang ◽  
Dongsheng He ◽  
Ya Tan ◽  
Liangbin Xu
Keyword(s):  
Flow Control ◽  
Contact Stress ◽  
Base Alloy ◽  
Thermal Structure ◽  
Control Valve ◽  
Flow Control Valve ◽  
Beam Model ◽  
Mechanical Coupling ◽  
Metal Seal ◽  
Seal Assembly

The K-shaped seal assembly is composed of K-shaped metal seal, high temperature nickel base alloy (GH4169). Its sealing performance directly affects the reliability and stability of flow control system. The 2-D axisymmetric K-shaped metal seal is abstracted as the combination of interference fit model and cantilever beam model. Considering the influence of temperature on the seal, based on the 2-D constitutive relation of elastic medium and heat conduction theory, the theoretical model between contact stress and self variation of K-shaped metal seal ring is deduced by using inverse method. Using ABAQUS thermal structure coupling analysis method, the thermal mechanical coupling finite element model of K-shaped seal assembly is established. The theoretical analytical solution proposed in this paper can be used to calculate the approximate solution of contact stress of radial metal seal under current oilfield conditions, and provides theoretical support for the numerical calculation of thermal stress of radial metal seal.

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