SPECTRAL ANALYSIS OF TRACK GEOMETRY FOR ASSESSING THE PERFORMANCE OF MAINTENANCE MACHINES

This document deals with the spectral analysis of the track geometry. The theory adopted here has been taken as a basis for assessing the actual transfer functions of track maintenance machines from recorded data assembled over the period from autumn 1976 to summer 1977. For the test results reference should be made to report No. 10 of ORE Committee D 117. In Part I of the present document, a brief survey is also given of the recording coaches used and their respective measuring systems. The theoretical performance of maintenance machines, already discussed in DT 29, is supplemented here by some considerations concerning the impact of measuring errors on the final results. Finally, Parts II and III of the report deal with the Fast Fourier Transform in numerical data analysis and with the impact of a finite record length on spectral estimates.

• Supplemental Notes:
  • Restrictions on the use of this document are contained in the explanatory material.
• Corporate Authors:

  International Union of Railways

  Office of Research and Experiments
  Utrecht,   Netherlands 
• Authors:
  • Esveld, C
• Publication Date: 1978-3

Media Info

• Features: Figures; Tables;
• Pagination: 66 p.

Subject/Index Terms

• TRT Terms: Equipment tests; Maintenance of way; Railroad tracks; Spectrum analysis; Stochastic processes; Structural design
• Identifier Terms: Nederlandse Spoorwegen
• Uncontrolled Terms: Track geometry
• Old TRIS Terms: Question dt77 (D117); Test equipment; Track maintenance equipment
• Subject Areas: Data and Information Technology; Railroads;

Filing Info

• Accession Number: 00053318
• Record Type: Publication
• Source Agency: International Union of Railways
• Report/Paper Numbers: DT 77/D 117
• Files: TRIS
• Created Date: May 11 1979 12:00AM