| 摘要 |
PURPOSE: A rotor abnormality diagnosis method is provided to shorten diagnosis time and allow diagnosis to be easily performed, by determining abnormality of rotor through the quantitative measurement. CONSTITUTION: A rotor abnormality diagnosis method, comprises a first step(S1) of calculating noise frequency ratio of each rotor and storing the result of calculation; a second step(S2) of inputting noise, calculating noise level ratio for each frequency, and storing the result of calculation; a third step(S3) of measuring rotational frequency of each rotor; a fourth step(S4) of obtaining the peak value of the noise level; and a fifth step(S5) of judging whether the peak value is an explosion frequency, and selecting the rotor causing the noise by comparing the noise frequency ratio and rotational frequency of each rotor with the peak value, if the peak value is not the explosion frequency.
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