Development of Diagnosis Technique for Converter Bearings by Using Acoustic Emission

음향방출기법을 이용한 전로베어링 안전진단 기술개발

  • 박경조 (여수대학교 기계자동차공학부)
  • Published : 2003.06.01


A method is presented for diagnosing the converter bearings by using acoustic emission. The flaking mechanism causing the large-scale bearing for furnace to flaw is investigated and a possibility of defect is verified by Finite Element method. he diagnosis logic is proposed fir detecting the flaw of a non-continuous rotating machine. It is proved that the acoustic emission energy can be used as a representative parameter for an acoustic event. Applying the method to the tilting bearings for steel mill in operation, the effectiveness of this logic is evaluated. It is shown that AE signal is generated only when the bearing is tilting, and the trend analysis can be focused upon this process.


converter;acoustic emission;flaw detection


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