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       HydrHydrHydraulics PneumaticHydraulics Pneumatics & Seals,by General Administration of Press and Publication , is a bimonthly magazine organized by China Hydraulics Pneumatics & Seals Association. It mainly focus on engineering technician and management personnel from the enterprises 、research institutes 、universities and colleges .Hydraulics Pneumatics & Seals is published both at home and abroad, and it has already been the 125 issue since its founding from 1981.

Content of 2018-05

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Overview & Comment

Compare of Three Kinds of Commonly Used Hydraulic System for Hydraulic Excavator ........WEI Hui-zhou, YU You-en(1)

 

Design & Research

Structural Design and Calculation of the Cryogenic Ball Valve.........WANG Yang-yang, JIA Chen(4)

Numerical Simulation of Mechanical Seal End-temperature Under Dry Friction Condition ........................LIU Jie,et al(8)

Modeling and Simulation of Hydraulic System for Marine Pump-controlled Steering Gear ..........................LIU Wang-sheng,et al(12)

Research on Mud Scraping Device of Pneumatic Drilling Tools............ZHU He,et al(16)

Finite Element Analysis of Cylinder O-ring for Underwater Hydraulic Vehicle .........................................SANG Yong,et al(18)

Modeling and Simulation of Air Brake Control Unit for Subway Vehicles....KOU Liang-peng(23)

Design an Analysis of Hydraulic Casing Basket........................ ZHU Jian-dong,et al(26)

FaiFailure Research of Aviation Aluminum Pipe Connection Assemblies Under Hydraulic Pulse .............................. WU Zi-long,et al(29)

The Key Technology Research of Multi-way Valve with High Pressure, Large Flow Cavitation Prevention Safety Valve............. YU Zhi-yong, WU Rui-nan(33)

 

System & Application

Application Status and Existing Problems Analysis of Centralized Lubrication System for MW Class Wind Power Generator Components................................. WANG Li-fei,et al(35)

The Improvement of Assembly Mode for Hydraulic Cylinder Piston Seal .... SUN Hong-jun(39)

Research on the Simulation Analysis and Control Measures of Erection Hydraulic System Out of Control with Over the Center of Gravity ............................... GUO Xiao-qiang,et al(41)

Analysis and Research on Control Methodology of Rotary Weapons Bay Door Drive System .............................. ....LI Xiang,et al(45)

Research on Screw Rejection Depth and Tightening Torque for Aluminum Hydraulic Valve Group ............WANG Zhong-feng,et al(48)

Cause Analysis and Improvement for Suction Vacuum When a Kind of Wheel Excavator Stops While High Speed Driving...........................................YU You-en,et al(51)

The Design and Application of Manually Four Seven-way Valve............ZHANG Lian-ren(54)

Study on Hydraulic System of Wave Power Generation....................NING Yan-chun,et al(57)

 

New Product,New Technology & New Process

A New Dedicated Welding Machine for the Die-casting Reactor Outer Ring .... XU Long(61)

A Self-innovative Numerical Control Proportional Cartridge Valve with Rotating Core ..........................GUO Jian-ye(64)

The Unloading Structure of Hydrodynamic Torque Converter..............CHEN Li-zhu, SHI Shuai(68)

Focused on Test Technique Improved Design of Cylinder Piston Rod Small End Against Fracture Based on Ansys and Accelerated Life Test Bench ....................................... LI Rui-sheng,et al(71)

Application on Energy Saving for Constant Pressure Variable Pump Test Table ....LIU Hua,et al(74)

Study on Comprehensive Test Bench for Hydraulic Motor.......LI Xiang-yang, CHEN Wan-qiang(77)

Analysis of Type Test Stand based on LabVIEW Software to Test the Performance of Excavator with Multiple Valve.................. WANG Dong-sheng(81)

Automatic Test System for Variable-speed Control Valve Based on the PLC Control ....................................... JIANG Jun,et al(85)