Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Damage Detection in a Plate Using an Orientation-adjustable Magnetostrictive Transducer

조향 자기변형 트랜스듀서를 이용한 평판 결함진단

  • 조승현 (서울대학교 대학원 기계항공공학부) ;
  • 이주승 (서울대학교 대학원 기계항공공학부) ;
  • 선경호 (서울대학교 대학원 기계항공공학부) ;
  • 김윤영 (서울대학교 기계항공공학부)
  • Published : 2005.01.01
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Abstract

In this work, we propose a new ultrasonic damage inspection method in plate structures. The proposed method employs an OPMT(orientation-adjustable patch-type magnetostrictive transducer) in order to make the ultrasonic waves directed to a specific target point. For experiments, virtual grid points were set up at every 50 mm in an aluminum plate and two OPMTs were used for inspection. If there exists a crack in a plate, the reflected Lamb wave from the crack is measured in addition to the direct waves from the transmitting transducer to the receiving transducer.

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References

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