Design of Hydraulic System for Electrohydraulic Servo Valve Test Bed

2013 ◽  
Vol 288 ◽  
pp. 84-87
Author(s):  
Dong Hai Su ◽  
Xiao Dong Tang
Keyword(s):  
Hydraulic System ◽  
High Efficiency ◽  
Performance Testing ◽  
Test System ◽  
Test Bed ◽  
Servo Valve ◽  
System A ◽  
Automated Test System ◽  
Static Performance ◽  
High Degree

According to the needs of the electrohydraulic servo valve dynamic and static performance testing, designed an automated test system for the test of the static characteristics and dynamic characteristics test combinations together. Its advantage includes a stable system, a high degree of automation, simple operation, and high efficiency, full-featured.

Analysis and Research of Hydraulic Roof Bolter in Performance Testing

2015 ◽  
Vol 733 ◽  
pp. 607-610
Author(s):  
Bin Zhou ◽  
Ying Yang ◽  
Kun Ming Yang ◽  
Yuan Bo Dong
Keyword(s):  
Rotational Speed ◽  
Performance Testing ◽  
Test System ◽  
Test Methods ◽  
Operating Principle ◽  
Roof Bolter ◽  
Speed Flow ◽  
High Degree

We propose a test system which is easy to operate, and has high degree of automation, and introduce its detail of operating principle and test methods, and according to the requirements of the hydraulic jumbler performance, mainly test the rotational speed, flow, torque and propulsion and other performances of the hydraulic bolt rig. The measured results were analyzed and studied, and then the measures for improvement were proposed.

Development of a High-Efficiency CVT

2010 ◽  
Vol 29-32 ◽  
pp. 2374-2379
Author(s):  
Jian Jun Hao ◽  
Jian Wei Wei ◽  
Wei Lv ◽  
Nai Shi Cheng
Keyword(s):  
Hydraulic System ◽  
High Efficiency ◽  
Test Results ◽  
Power Performance ◽  
Special Design ◽  
Axial Thrust ◽  
System A ◽  
Actuation System ◽  
Low Efficiency ◽  
Disc Spring

Aim to conquer the low efficiency of the current auto-CVT actuated by hydraulic system, a new design was proposed based on the analysis of the energy loss, which used compounded disc spring clamp set and motorized actuation system. Through the special design of the compounded disc spring and the balance spring, the axial thrust was well counterpoised, thus it achieved the result that the actuation system could be droved by low power motor. The test results show that the CVT developed according to the new design can reduce the power consumption obviously and improve the power performance.

Testing Technology of Tether Net System Based on Simulation

2012 ◽  
Vol 546-547 ◽  
pp. 1182-1187
Author(s):  
Lian Bao Xie ◽  
Qi Lin
Keyword(s):  
Performance Testing ◽  
System Of Systems ◽  
Simulation Environment ◽  
Test Bed ◽  
System Testing ◽  
Virtual Test ◽  
System A ◽  
Testing Technology ◽  
Testing And Evaluation ◽  
Basic Configuration

Performance testing and evaluation of system of systems has always been a challenge. In this paper, on the base of analyzing and concluding the traditional testing technology of tether net system, a method of tether net system testing based on simulation is posed. Discuss the conception, target, principle of system testing, the basic configuration and supporting technology of tether net system simulation environment are presented, and finally build virtual test bed environment , finish testing.

The Research of Performance Test System of Seals in Hydraulic Support Column

2012 ◽  
Vol 468-471 ◽  
pp. 2542-2545
Author(s):  
Xi Zhang ◽  
Ping Zhao ◽  
Yu Bai
Keyword(s):  
Performance Test ◽  
Performance Testing ◽  
Hydraulic Cylinder ◽  
Test System ◽  
Testing System ◽  
Test Bed ◽  
Hydraulic Support ◽  
Practical Applications ◽  
Testing Method ◽  
Purchasing Process

In order to solve the problem that there is no appropriate testing method for the purchasing process of sealing washer in hydraulic support producing company at present, the author designed a test bed used to test the seal performance of hydraulic cylinder in the mine hydraulic support to provide database supports for purchasing sealing washer for hydraulic support manufacturers, by using the performance testing system of sealing washer worked upright column for hydraulic support. The introduction of the principles, constitutions and functions of the test bed will be shown in this paper. After a number of experiments, it is reflected by the practical applications that the test bed is operating stably, accurately and efficiently which could be used for testing sealing washer.

The Performance Testing System of Force Motor Valve

2014 ◽  
Vol 635-637 ◽  
pp. 1382-1385
Author(s):  
Dong Dong Chen ◽  
Kun Peng Jiang ◽  
Da Wei Jiang ◽  
Chao Jun Yang ◽  
Min Chen
Keyword(s):  
Performance Index ◽  
Performance Test ◽  
Characteristic Curve ◽  
Steel Production ◽  
Performance Testing ◽  
Fast Response ◽  
Test System ◽  
Static Characteristic ◽  
Servo Valve ◽  
Testing Method

Hitachi force motor valve has been widely used in the hydraulic automatic gauge control (AGC) system of rolling mill due to the characteristics of fast response, high control accuracy and strong anti-pollution ability. It is an important part to control the steel production cost by detecting the performance index of the FMV effectively and in real time. Traditional Servo valve test system detects its static characteristics through the flow and pressure changes between the traffic cavity, and this principle can solve the three position four way servo valve performance test. However, FMV is a special three-way valve and it is hard to test its static characteristic curve like three position four way servo valve. This paper proposes a FMV testing method and has realized it. The test platform is designed and built according to the hydraulic valve testing performance index for detecting the performance of a force motor valve. Not only were force motor valve (FMV) performance characteristics tested effectively but also the performance curves were drawn. The results show that the FMV performance testing method we have built can be effectively used to detect the static performance index of FMV.

Study on Mechanical Automation with Improvement of Battery Test System for Electric Vehicle

2013 ◽  
Vol 738 ◽  
pp. 287-291
Author(s):  
Yi Peng Wan ◽  
Wei Yao
Keyword(s):  
Electric Vehicle ◽  
Control Method ◽  
Can Bus ◽  
Test System ◽  
Constant Current ◽  
System A ◽  
Test Platform ◽  
Battery Packs ◽  
Computer Structure ◽  
High Degree

Aiming at the problems of the existing battery test system, a EV battery test platform with high degree of simulation is designed, based on the upper and lower computer structure after a lot of analysis. The PC software is also compiled, which could simulate the real road status, or to control the battery to discharge with constant current or constant power, by the communication with the lower computer through 485 bus and CAN bus. The corresponding control method to realize the discharging test with constant current is designed, also an interface to Excel which can read the configure information from Excel to realize the simulation of discharging test is designed. There are some curves I got are shown below. Several battery packs test are completed. Also, the improvement of battery test system for electric vehicle will make a great contribution in the field of mechanical automation

Solving OPF Problems using Biogeography Based and Grey Wolf Optimization Techniques

2017 ◽  
Vol 6 (3) ◽  
pp. 55-77 ◽  
Author(s):  
Kingsuk Majumdar ◽  
Puja Das ◽  
Provas Kumar Roy ◽  
Subrata Banerjee
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
High Efficiency ◽  
Test System ◽  
Optimization Techniques ◽  
Mixed Integer ◽  
Grey Wolf ◽  
Grey Wolf Optimization ◽  
System A ◽  
Optimal Power

This paper presents biogeography-based optimization (BBO) and grey wolf Optimization(GWO) for solving the multi-constrained optimal power flow (OPF) problems in the power system. In this paper, the proposed algorithms have been tested in 9-bus system under various conditions along with IEEE 30 bus test system. A comparison of simulation results reveals optimization efficacy of the proposed scheme over evolutionary programming (EP), genetic algorithm (GA), mixed-integer particle swarm optimization (MIPSO) for the global optimization of multi-constraint OPF problems. It is observed that GWO is far better in comparison to other listed optimization techniques and can be used for aforesaid problems with high efficiency.

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