MEASUREMENT AND DIAGNOSIS OF THE NOISE FROM A GENERAL ELECTRIC C36-7 DIESEL ELECTRIC LOCOMOTIVE

Measurements of the noise from a General Electric C36-7 diesel electric locomotive were performed with the locomotive stationary and attached to a load cell during powered and unpowered pass-by tests. The pass-by tests demonstrated that wheel/rail noise contributes little to both interior and wayside noise when the locomotive is operating under load at throttle 8. Stationary tests examined the directivity of noise around the locomotive and the contribution of the major sources to the noise signature. At throttle 8, under load and at idle, the exhaust and radiator cooling fan were the primary sources. At throttle 8, unloaded, the radiator cooling fan exhaust and equipment blower dominated the noise.

• Corporate Authors:

  Bolt, Beranek and Newman, Incorporated

  50 Moulton Street
  Cambridge, MA  United States  02138

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142

  Federal Railroad Administration

  Office of Research and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • REMINGTON, P J
  • Alakel, M N
  • Dixon, N R
• Publication Date: 1979-12

Media Info

• Pagination: 105 p.

Subject/Index Terms

• TRT Terms: Acoustic measuring instruments; Acoustics; Cooling systems; Diesel electric locomotives; Engine idling; Fans; Noise; Power spectra; Railroad facilities; Recording instruments; Sound level; Transfer functions
• Old TRIS Terms: Acoustic measurement; Fan noise; Idling; Wayside
• Subject Areas: Environment; Railroads;

Filing Info

• Accession Number: 00326441
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: BBN-4167 Final Rpt., DOT-TSC-FRA-79-26
• Contract Numbers: DOT-TSC-1580
• Files: NTIS, TRIS, USDOT
• Created Date: Feb 6 1981 12:00AM