Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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A Study on Ultrasonic Wave Propagation Model in Multi-Layer Media

다중 접착계면의 초음파 전달 모델 연구

  • 임수용 (국방과학연구소 1기술연구본부 6부) ;
  • 김동륜 (국방과학연구소 1기술연구본부 6부)
  • Received : 2011.11.30
  • Accepted : 2011.04.13
  • Published : 2012.06.01
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Abstract

This research simulates the ultrasonic wave propagation in multi-layered media using generalized formular of system response function. We made the artificial defect specimen of a rocket motor and compared with experimental wave forms. The simulation results are coincide with measured waves and we found that the pulse echo method is able to detect unbond defect at liner-propellant interface.

본 연구는 다중 접착계면에서의 초음파 전달 현상을 시스템 응답함수의 일반식을 사용하여 시뮬레이션을 수행하였고, 추진기관의 모의결함시편을 제작하여 모델링의 결과를 검증하였다. 실험 결과 추진제-라이너 미접착 결함을 초음파 펄스 반사법으로 검출할 수 있었으며, 시뮬레이션 결과와 측정된 초음파 파형이 잘 일치함을 알 수 있었다.

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References

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