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Monitoring bearing condition using airborne sound

Mansor N.I.I., and Ghazali M.J., and Nuawi M.Z., and Kamal S.E.M., (2009) Monitoring bearing condition using airborne sound. International Journal of Mechanical and Materials Engineering, 4 (2). pp. 152-155. ISSN 1823-0334

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Official URL: http://ejum.fsktm.um.edu.my/ArticleInformation.aspx?ArticleID=776

Affiliations

Universiti Kebangsaan Malaysia, Dept. of Mechanical and Materials Engineering
Universiti Kebangsaan Malaysia, Dept. of Mechanical and Materials Engineering
Universiti Kebangsaan Malaysia, Dept. of Mechanical and Materials Engineering
Universiti Kebangsaan Malaysia, Dept. of Mechanical and Materials Engineering

Abstract

A sliding wear behaviour of several commercial bearing alloys were tested against a hardened AISI 4340 steels at three different sliding distance, 500, 800 and 1500 m. Under a pin-on-disc configuration, the test was performed in a lubricated condition (engine oil) in order to imitate the contact behaviour of a connecting rod and a crankshaft in an engine. In this work, deformations of the bearings were being monitored by an acoustic method via airborne. With frequencies ranging from 0 to 20 kHz, deformed bearing signals were then analysed by MATLAB software including the 3D I-kaz method. It was found that wear coefficient, K’ for 500 m sliding speed showed 8.5x10-5 mm³/Nm and based on FFT analysis a signal was generated during the test done. Thus, it can be concluded that the wear loss can be recorded via airborne which was induced by generated sound from the pin and disc contacts.

Item Type:Journal
Keywords:Sliding wear; Bearing; Acoustic; Monitoring
Subjects:T Technology, Engineering
ID Code:10292

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