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Research of Disc Dynamometer Testing System Based on Labview

Author: YeHui
Tutor: ZhouQing
School: Guangxi University
Course: Agricultural Mechanization Engineering
Keywords: Disc dynamometer system Constant-torsion Constant-speed LabVIEW
CLC: TK40
Type: Master's thesis
Year: 2012
Downloads: 68
Quote: 0
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Abstract


Disk dynamometer system is specially designed based on the output characteristics of small internal combustion engine, Compared with other types of dynamometer loading equipments, The disc dynamometer system with the specialty of simple structure、small moment of inertia、high allowable speed、 long service life、use computer can instant measurement control and good repeatability in the small power dynamic mechanical loading dynamometer test, so it is very suitable for testing the dynamic performance and different working conditions of small power internal combustion engine.According to the bench test code GB/T1105.2-1987of internal combustion engine, self-defined testing system function and testing project, by compiling test and measurement program based on Lab VIEW software to realize the application of computer virtual instrument measure and control technology in engine performance test. Using electronic design automation software Protel99and Multisim10circuit simulation design software to design the speed seniors、 temperature seniors、pressure seniors for signal processing circuit. Seniors will provide accurate and high precision test control signal for the system after demarcate; By the calibration test to testing system, evaluating the uncertainty、 precision and reliability of the system. Physical experiments have been done on the system to test the load performance、velocity characteristic and use characteristic of the engine to verify whether the function of the system meet the design requirement or not. The inspection test analysis shows that the disc dynamometer testing system based on LabVIEW can make an accurate test for small power engine with the power less than10kW.Therefore, disc dynamometer system based on LabVIEW not only remedy the inexact deficiency of small power engine performance test, but also add constant torque and constant speed function to the testing system, which make the testing methods more simple and rapid, and it also provides a new type engine dynamic performance and different working conditions test device for small power engine performance test.

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CLC: > Industrial Technology > Energy and Power Engineering > Internal combustion engine > General issues
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