Research on the Water-Based Hydraulic Vibration Test-Bed

2014 ◽  
Vol 1016 ◽  
pp. 204-208
Author(s):  
Qian Liu ◽  
Yuan Xun Liu ◽  
Cong Yang ◽  
Xiao Lin Li
Keyword(s):  
Test System ◽  
Vibration Test ◽  
Test Bed ◽  
Matlab Software ◽  
Water Based ◽  
Working Principle ◽  
Water Hydraulic ◽  
And Function

In this paper, the application background and function of vibration test is introduced. Besides, the composition and working principle of vibration test system is also introduced simply. Furthermore, the characteristic of water and oil is compared with each other in the paper. It is discussed if the water hydraulic is able to be used in the hydraulic vibration test-bed or not. The capability of hydraulic vibration test-bed based on water is simulated by Matlab software. The feasibility of this project is also analyzed.

scholarly journals Research on Computer Aided Test System for Sealing Characteristics of Hydraulic Support Pure Water Hydraulic Cylinder

2021 ◽  
Vol 2143 (1) ◽  
pp. 012048
Author(s):  
Yuanzhi Huang
Keyword(s):  
Pure Water ◽  
Hydraulic Cylinder ◽  
Test System ◽  
Test Methods ◽  
Hydraulic Support ◽  
Complex Process ◽  
Safety And Reliability ◽  
Water Hydraulic ◽  
Low Efficiency ◽  
And Function

Abstract The sealing characteristics of the hydraulic cylinder in the hydraulic support will have an momentous implication on the safety and reliability of the whole system. The traditional test methods of the sealing characteristics of hydraulic support pure water hydraulic cylinder have many shortcomings, such as single means, complex process, poor accuracy and low efficiency. Based on this, this paper first analyzes the sealing principle and function of hydraulic support pure water hydraulic cylinder, then studies the CAT system of hydraulic support, and finally gives the design and utilization process of CAT system for sealing characteristics of hydraulic support pure water hydraulic cylinder.

Finite element analysis of a vibration test bed frame

2017 ◽  
Vol 59 (2) ◽  
pp. 183-187 ◽  
Author(s):  
Dong Lei ◽  
Rui Jiang ◽  
Pengxiang Bai ◽  
Feipeng Zhu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Test ◽  
Test Bed ◽  
Element Analysis

The Integrated Mechanical Function Test System of Material and Structural Fatigue Damage

2012 ◽  
Vol 532-533 ◽  
pp. 398-402
Author(s):  
Yu Lan Wei ◽  
Bing Li ◽  
Sui Ying Jin ◽  
Kai Kai Chen
Keyword(s):  
Optimal Design ◽  
Test System ◽  
Integrated System ◽  
Detection Methods ◽  
Signal Acquisition ◽  
Mechanical Function ◽  
Structural Fatigue ◽  
Material Functions ◽  
Function Test ◽  
And Function

An integrated system to measure mechanical functions of material or structure is introduced. This system is able to provide more detection methods and experiment environments. And it can discover the characteristics and mechanisms of damnification and breakage in materials, considering the effects of loading and environments. Material functions were analyzed in many aspects, including loading, strain, light, sound, temperature and infrared to ensure the safety of materials and configuration of unmanned plane. Current study has laid a foundation for realizing optimal design of unmanned plane. In this paper, theory, components, and function of the system were discussed, as well as signal acquisition and analysis.

A Comprehensive Test System for Precision Transmission Performance of CORT Reducer

2013 ◽  
Vol 333-335 ◽  
pp. 2448-2451
Author(s):  
Yong Li ◽  
Guang Ma ◽  
Yun De Shen ◽  
Tai Hong Cheng ◽  
Zhen Zhe Li ◽  
...  
Keyword(s):  
Performance Test ◽  
Velocity Ratio ◽  
Test System ◽  
Test Method ◽  
Transmission Performance ◽  
Test Bed ◽  
Comprehensive Test ◽  
Return Difference ◽  
And Control ◽  
Torque Angle

To meet the needs of test for compound oscillatory roller transmission (CORT) reducer, A comprehensive test system for precision transmission performance was designed, the test-bed structure and control principal of which were introduced. First, a transmission performance test method was proposed and focused on the transmission performance of velocity ratio, accuracy, and efficiency. Then, user interface based on LabVIEW program was designed, and the transmission performance of torque, angle, velocity, velocity ratio, return difference, efficiency could be displayed. Finally, measurement example on an E80 type CORT reducer has been made, and shows that the proposed test system is suitable for test for these reducers of high-precision drive, high stiffness, high load characteristics.

scholarly journals Laboratory Test Bed for Analyzing Fault-Detection Reaction Times of Protection Relays in Different Substation Topologies

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2482 ◽  
Author(s):  
Goran Jurišić ◽  
Juraj Havelka ◽  
Tomislav Capuder ◽  
Stjepan Sučić
Keyword(s):  
Distribution System ◽  
Information Exchange ◽  
Transition Period ◽  
Reaction Times ◽  
Energy Transition ◽  
Test System ◽  
Protection System ◽  
International Electrotechnical Commission ◽  
Test Bed ◽  
Iec 61850

Visions of energy transition focus on activating end users, meaning that numerous flexible-distribution network-level devices become active participants in power-system operations. This implies a fast, reliable, and secure exchange of data, enabling the distribution-system operators to maintain, or even improve, the quality and delivery of service. With the introduction of the International Electrotechnical Commission (IEC) 61850 standard, the path is set for a single communication topology covering all substation levels. The standard has the potential to change the way substations are designed, built, tested, and maintained. This means that the key segment of the substation, its protection system, will go through a transition period with the end goal of having a digitized substation where all information exchange is performed over an Ethernet communication bus. This paper analyzes the performance impact of the IEC 61850-9-2LE on the protection system. To do this, a laboratory hardware-in-the-loop test setup was developed representing traditional-, hybrid-, and digital-substation topology. The setup serves to simulate faults and create transient waveforms in an extended IEEE 123-node test system, which is then used to detect the reaction times of protection relay devices. To verify the results, a significant number of tests was performed clearly showing the benefits of digitalizing the distribution system.

scholarly journals Development of Vibration Test System to Measure Human Biodynamic Responses to Hand-Transmitted Vibration (HTV)

2019 ◽  
Vol 1262 ◽  
pp. 012027
Author(s):  
A M Aizuddin ◽  
N A Abdul Jalil ◽  
K A Md Rezali ◽  
Y G Ng
Keyword(s):  
Test System ◽  
Vibration Test

Coherence Analysis and Control of Multi-Exciter Vibration Test System

2013 ◽  
Vol 401-403 ◽  
pp. 1005-1009
Author(s):  
Zheng Tao Yan ◽  
Shao Chun Ding
Keyword(s):  
Control System ◽  
System Development ◽  
Response Spectrum ◽  
Test System ◽  
Partial Coherence ◽  
Vibration Test ◽  
Test Field ◽  
And Control ◽  
Drive Signals ◽  
Test Control

Multi-exciter vibration test control system is the core of the multiple shaker vibration test, and multi-exciter vibration test control technology has become the hot point of vibration test field. Based on coherence principles, the coherence of two exciters control system was tested, the introduction of noise signal reduces the control coherence between the response spectrum and partial coherence between response and the corresponding drive signal. By means of increasing the coherence between drive signals, the control coherence between the response spectrum can be raised and control performance of system can be Improved. The above means could provide technical support for multi-exciter vibration test system development.

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