Real-Time Measurement of Friction Coefficient in the Frictional Performance Test of Brake Disk

Abstract:

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Development and optimizing of friction material formula, oriented to improve the service life and security of brake disk, is largely based on advanced measurement method to accurately provide the friction coefficient. In this study, virtual instrumentation technique was used to design an automation measurement system of friction coefficient. With proper sensors, data of four measured variables such as temperature, rotation speed, pressure and friction torque are acquired by the computer combined with a plug-in data acquisition board. The system work principle, selection of sensors, multi-channel sampling, signal processing and anti-jamming measures have been presented in detail. Those functions of the software such as real-time data acquisition, dynamic wave displaying, high-speed report saving and inquiry, and so on, have been realized by LabWindows/CVI 7.1. The system works safely with high accuracy and friendly user interface in practical operation.

Info:

Periodical:

Key Engineering Materials (Volumes 373-374)

Main Theme:

Edited by:

M.K. Lei, X.P. Zhu, K.W. Xu and B.S. Xu

Pages:

484-487

DOI:

10.4028/www.scientific.net/KEM.373-374.484

Citation:

X. J. Huo et al., "Real-Time Measurement of Friction Coefficient in the Frictional Performance Test of Brake Disk", Key Engineering Materials, Vols. 373-374, pp. 484-487, 2008

Online since:

March 2008

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Price:

$35.00

[1] Wang Tie-shan, Qu Bo: Measuring and Testing Technology For Auto Friction Material(Jilin Science and Technology Press, Changchun 2005).

[2] Wang Li-qin, Liu Ming-xia and Gu le: The Application of Computers to Tribological Experiments, Journal of Harbin Engineering University, Vol. 21(2) (2000), pp.81-84.

[3] Information on http: /www. ni. com.

[4] NI-DAQmx Reference Manual (Published by National Instruments Corp., U.S.A. 2006) Fig. 3 Test report of an experiment.

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