Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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Post-processor Simulator Construction of Ultrasonic Signals for Integrity Evaluation of Railway Truck

대차 프레임의 건전성평가를 위한 초음파신호 후처리기 시뮬레이터 구축

  • 이규배 (안산공과대학 컴퓨터응용기계설계과) ;
  • 윤인식 (경기공업대학 메카트로닉스과)
  • Published : 2002.06.01
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Abstract

This study proposes the post-processor simulator construction of ultrasonic signal for integrity evaluation of railway truck. For these purposes, the ultrasonic signals for defects(crack) of weld zone in frames are acquired in the type of time series data and echo strength. The detection of the natural defects in railway truck is performed using the characteristics of echodynamic pattern in ultrasonic signal. The constructed post-processor simulator agree fairly well with the measured results of test block(defect location, beam propagation distance, echo strength, etc). Proposed post-processor simulator construction of ultrasonic in this study can be used for the integrity evaluation of railway truck.

Keywords

References

  1. ASME Boiler & Pressure Vessel Code Sec. V, 'Standard Practice for Liquid Penetrant Inspection Method,' pp.455-472, 1995
  2. ASME Boiler & Pressure Vessel Code Sec. V, 'Magnetic Particle Examination,' pp.151-156, 1995
  3. 윤인식, '초공간을 고려한 SA508 강의 재질열화 시계열 신호의 카오스성 평가,' 대한용접학회지, 제16권, 제6호, pp.537-547, 1998
  4. Yun In-Sik, 'The Defect Detection and Nondestructive Evaluation in Weld Zone of Austenitic Stainless Steel 304 using Neural Network UltrasonicWaves,'KSME International Journal, Vol.12, No.6, pp.295-306, 1998
  5. 윤인식, 권성태, '초음파 파면해석에 의한 대차 프레임의 건전성평가,' 한국철도학회, 제2권, 제3호, pp.77-83, 2000
  6. 윤인식, 권성태, 박덕신, '초음파 파면해석에 의한 대차 프레임의 건전성평가,' 한국철도학회 2000년 추계학술대회 논문집, pp.461-467, 2000
  7. 윤인식, 권성태, '어트랙터 해석을 이용한 레일 용접부의 결함 평가,' 한국철도학회지, 제2권, 제1호, pp.38-46, 1999
  8. 윤인식, 권성태, '위상공간-주파수해석을 이용한 레일 용접부의 결함 평가,' 한국철도학회지, 제2권, 제2호, pp.21-30, 1999
  9. F. Takens, 'Lecture Notes in Mathematics,' D. A. Rand and L. S. Young(eds.), Springer, Vol. 898, pp.266. 1981
  10. M. B. Kennel et al, 'Determining Embedding Dimension for Phase Space Reconstruction using Geometrical construction,' Physical Reviews A, Vol. 45, pp.2403-3411. 1992 https://doi.org/10.1103/PhysRevB.45.2403
  11. W. Liebert and H. G. Schuster, 'Proper Choice of The Time Delay for The Analysis of Chaotic Time Series,' Physics Letters A, Vol. 142, pp.107-111. 1989 https://doi.org/10.1016/0375-9601(89)90169-2
  12. P. Grassberger and I. Procaccia, 'Characterization of Attractors,' Rev. Lett., Vol. 50, No.5, pp.346-349. 1983 https://doi.org/10.1103/PhysRevLett.50.346