ACOUSTIC FLAW DETECTION IN RAILWAY WHEELS

Ultrasonic pulse propagation has been studied in quarter-scale model railway wheels. Surface waves traveling around the tread of a wheel have been used to detect simulated thermal cracks using both pulse echo and attenuation methods. Pulse echoes from simulated plate flaws have been found using a transducer positioned on the tread surface to produce Lamb waves in the plate. Plate flaws have also been detected from the differences in the audio frequency acoustic radiation spectra of good and defective quarter-scale models, using a real time analyzer. The extension of this work to full size wheels with actual defects is currently in progress.

• Supplemental Notes:
  • Ultrason Int, Conf Proc, Imperial College, London, England, 27-29 March 1973.
• Corporate Authors:

  IPC Science and Technology Press Limited

  IPC House, 32 High Street
  Guildford, Surrey  England 
• Authors:
  • Finch, R D
  • Bray, D E
• Conference:
  • Ultrason Int, Conf Proc, Imperial College, London, England, 27-29 March 1973.
• Publication Date: 1973

Media Info

• Pagination: p. 194-198

Subject/Index Terms

• TRT Terms: Cracking; Inspection; Nondestructive tests; Ultrasonic tests; Wheels
• Old TRIS Terms: Wheel inspection
• Subject Areas: Freight Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00072703
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Conf Paper
• Files: TRIS
• Created Date: Jan 16 1976 12:00AM