Study on performance test on force-sensor of multi-support rotor-bearing test-bed

2008 ◽  
Author(s):  
Xinyu Pang ◽  
Zhaojian Yang ◽  
Haiyan Lu ◽  
Qunlong Liang ◽  
Huer Sun
Keyword(s):  
Performance Test ◽  
Force Sensor ◽  
Test Bed ◽  
Rotor Bearing

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.

The Monitoring Software Design of Performance Test-Bed of Heat Pump Unit

2013 ◽  
Vol 475-476 ◽  
pp. 192-197
Author(s):  
Jian Wen Feng ◽  
Li Peng Wang
Keyword(s):  
Heat Pump ◽  
Performance Test ◽  
Fault Tolerant ◽  
Monitoring Program ◽  
Monitoring Systems ◽  
Air Conditioner ◽  
Test Bed ◽  
Pump Unit ◽  
Heat Pump Unit ◽  
Monitoring Software

Performance test-bed of heat pump unit in central air-conditioner needs the intelligent and multifunctional software. So the monitoring software is designed with a good human-machine interactive interface, based on Visual C# development platform. The software can dynamically configure channels and measurement points to improve the defects of fixed channels for all measuring points in the traditional monitoring systems, which enhanced the flexibility and reliability of system. In order to increase the data accuracy, the improved digital filter algorithm was adopted. In addition, multi-threading mechanism was used to achieve serial communication and data processing, which meets the requirements of monitoring program for multi-tasking and real-time. The results show that monitoring software is powerful, easy to operate, reliable, high fault-tolerant and good user-friendly. It is suitable for using in other monitoring systems.

scholarly journals Development of Hardware-in-the-Loop-Simulation Testbed for Pitch Control System Performance Test

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 2031
Author(s):  
Jongmin Cheon ◽  
Jinwook Kim ◽  
Joohoon Lee ◽  
Kichang Lee ◽  
Youngkiu Choi
Keyword(s):  
Control System ◽  
Wind Speed ◽  
Wind Turbine ◽  
Wind Shear ◽  
Performance Test ◽  
Control Function ◽  
Hardware In The Loop ◽  
Rotor Speed ◽  
Test Bed ◽  
Pitch Control

This paper deals with the development of a wind turbine pitch control system and the construction of a Hardware-in-the-Loop-Simulation (HILS) testbed for the performance test of the pitch control system. When the wind speed exceeds the rated wind speed, the wind turbine pitch controller adjusts the blade pitch angles collectively to ensure that the rotor speed maintains the rated rotor speed. The pitch controller with the individual pitch control function can add individual pitch angles into the collective pitch angles to reduce the mechanical load applied to the blade periodically due to wind shear. Large wind turbines often experience mechanical loads caused by wind shear phenomena. To verify the performance of the pitch control system before applying it to an actual wind turbine, the pitch control system is tested on the HILS testbed, which acts like an actual wind turbine system. The testbed for evaluating the developed pitch control system consists of the pitch control system, a real-time unit for simulating the wind and the operations of the wind turbine, an operational computer with a human–machine interface, a load system for simulating the actual wind load applied to each blade, and a real pitch bearing. Through the several tests based on HILS test bed, how well the pitch controller performed the given roles for each area in the entire wind speed area from cut-in to cut-out wind speed can be shown.

A Framework for Efficient and More Realistic Haptics Applications

2003 ◽  
Author(s):  
Cristian Luciano ◽  
Pat Banerjee ◽  
Thomas DeFanti ◽  
Sanjay Mehrotra
Keyword(s):  
High Performance ◽  
Performance Test ◽  
Test Bed ◽  
Haptic Interaction ◽  
Interaction Point ◽  
3D Objects ◽  
Scientific Exploration ◽  
Cross Platform ◽  
Object Interactions ◽  
Penetration Depths

This paper describes the development of a generic framework for implementing realistic cross-platform haptic virtual reality applications. Currently, freely available Software Development Kits (SDKs) deal with a single Haptic Interaction Point (HIP), i.e. the tip of the haptic probe. However, many applications as path planning, virtual assembly, medical or dental simulations, as well as scientific exploration require object-object interactions, meaning any part of the complex 3D object attached to the probe collides with the other objects in the virtual scene. Collision detections and penetration depths between 3D objects must be quickly computed to generate forces to be displayed by the haptic device. In these circumstances, implementation of haptic applications is very challenging when the numbers, stiffness and/or complexity of objects in the scene are considerable, mainly because of high update rates needed to avoid instabilities of the system. The proposed framework meets this high requirement and provides a high-performance test bed for further research in algorithms for collision detection and generation of haptic forces.

Research on the Effect of Composition Ratio on the Drying Quality of Plant Bowl-Seeding Tray

2014 ◽  
Vol 926-930 ◽  
pp. 1014-1017
Author(s):  
Yi Feng Zhang ◽  
Chun Wang
Keyword(s):  
Performance Test ◽  
Rice Seedling ◽  
Test Bed ◽  
Wet Strength ◽  
Composition Ratio ◽  
Superheated Steam Drying ◽  
Steam Drying ◽  
Drying Test ◽  
Drying Quality

In order to research on the effect of composition ratio on drying quality of the plant bowl-seeding tray, the drying test was done in superheated steam drying test-bed, the regression model was established by performance test data, and the best composition ratio was obtained from optimization results, the best composition ratio is 21:7:1:4, at this condition the dry strength value was 0.2112MPa, the wet strength value was 0.2178Mpa. The research results has important meaning to enhance the drying quality of the rice seedling-growing tray made of paddy-straw and to promote planting techniques of bowl sterile.

scholarly journals FLASHForward: plasma wakefield accelerator science for high-average-power applications

2019 ◽  
Vol 377 (2151) ◽  
pp. 20180392 ◽  
Author(s):  
R. D'Arcy ◽  
A. Aschikhin ◽  
S. Bohlen ◽  
G. Boyle ◽  
T. Brümmer ◽  
...  
Keyword(s):  
High Performance ◽  
Performance Test ◽  
Electron Beams ◽  
Average Power ◽  
Particle Beam ◽  
High Average Power ◽  
Test Bed ◽  
Operational Parameters ◽  
Plasma Background ◽  
Plasma Wakefield

The FLASHForward experimental facility is a high-performance test-bed for precision plasma wakefield research, aiming to accelerate high-quality electron beams to GeV-levels in a few centimetres of ionized gas. The plasma is created by ionizing gas in a gas cell either by a high-voltage discharge or a high-intensity laser pulse. The electrons to be accelerated will either be injected internally from the plasma background or externally from the FLASH superconducting RF front end. In both cases, the wakefield will be driven by electron beams provided by the FLASH gun and linac modules operating with a 10 Hz macro-pulse structure, generating 1.25 GeV, 1 nC electron bunches at up to 3 MHz micro-pulse repetition rates. At full capacity, this FLASH bunch-train structure corresponds to 30 kW of average power, orders of magnitude higher than drivers available to other state-of-the-art LWFA and PWFA experiments. This high-power functionality means FLASHForward is the only plasma wakefield facility in the world with the immediate capability to develop, explore and benchmark high-average-power plasma wakefield research essential for next-generation facilities. The operational parameters and technical highlights of the experiment are discussed, as well as the scientific goals and high-average-power outlook. This article is part of the Theo Murphy meeting issue ‘Directions in particle beam-driven plasma wakefield acceleration’.

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