Abstract:

In this study, the detection of fractures in the rotor stripes of the sincap-covered asynchronous engines was studied by acoustic measurements. This type of engine is widely used in the industry. The breakdowns in the rotor bars of the engines reduce the engine performance. This also causes the production and causes material losses. With acoustic measurements on the working engine, this type of failure can be detected in advance. This will eliminate unplanned positions. In the test circuit prepared for the audio files obtained in acoustic measurements, the ac driver, the engine braking circuit and the condenser microphone were used. The MATLAB software has made changes in the time domain by making the Fast Furier Conversion (FFT). FFT differences in sound files measured during the operation in the different speed and turn values of the engine that is robust and rotor bar broken are interpreted by detecting FFT differences in sound files measured during the operation.

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