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008 110323t2010 my a f m 000 0 eng d
020 _aTHE0007136(Local)
039 9 _a201906131218
_bhanafiah
_c201110041200
_dFida
_c201107131630
_dVLOAD
_y201103230917
_zida
040 _aUMP
090 _aTL210 .N37 2010 rs Bc.
100 0 _aNur Naquiah Mohammad Ali
245 1 0 _aAutomotive engine fault diagnosis using acoustic emission technique /
_cNur Naquiah Mohammad Ali
246 3 _aAutomotive engine fault diagnosis using acoustic emission technique
_h[computer file]
260 _aKuantan, Pahang :
_bUMP,
_c2010
300 _axvi, 80 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Mechanical Engineering with Automotive Engineering) -- Universiti Malaysia Pahang - 2010
504 _aBibliography : p. 72-74
520 3 _aThis thesis was carried out to diagnose faults in an automotive engine using acoustic emission method. Proton Persona’s engine, which is a four cylinder engine, powered by 1.6 liters double overhead camshaft (DOHC) with two different locations (Point A and Point B) marked was used as the main test-rig. There were three tests conducted for this project, the pencil-break test, engine under idle condition and engine under fuel injector shut off condition. Pencil-break test is performed in order to check the most suitable material to be used as medium to transfer the signals. The source of the Acoustic Emission (AE) signals was from the condition where the fuel injector was shut off when the engine is running, and it was captured using AE sensor with the help from Physical Acoustic AE-win 3.1 software. For engine under idle and shut off condition, all the domain parameters (RMS amplitude, peak amplitude and energy) was processed using MATLAB software. The parameters were then compared between idle and shut off condition for each fuel injector shut off. The results shows that the different of AE parameters between Point A and Point B, where Point B shows higher value than Point A in idle condition and also under fuel injector shut off condition. During shut off condition, the RMS amplitude, peak amplitude and energy produced higher energy level compare to idle condition. This indicates defects or faults occurred. In addition, Pekan number, X was introduced as the indicator or ratio of value before fuel injector shut off to value during fuel injector shut off.
650 0 _aAutomobiles
_xMotors
650 0 _aAcoustic emission
650 0 _aAcoustic emission testing
999 _aVIRTUA40
_c355
_d361
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5040*5200*6500*6501*6502*9992