TRUCK NOISE X: NOISE REDUCTION OPTIONS FOR DIESEL POWERED INTERNATIONAL HARVESTER TRUCKS. VOLUME II. COST-NOISE ANALYSIS AND FIELD INSTALLATION

Noise reduction option development work was carried out on two inservice diesel powered IH trucks, consisting of a Cab-over model and a Conventional model with a baseline exterior noise level of 87 dB(A) each. Since no specific noise goals were set, International Harvester established an exterior noise reduction goal of 83 dB(A). Then, for each vehicle, proper noise source identification techniques were applied and major contributors were established. The commercially available source noise reducing components were tested singly, and were selected based upon an optimum evaluation. The selected components were collectively installed on the trucks and cumulative performance in the total truck environment was found to be adequate to meet the established noise level goals.

• Supplemental Notes:
  • See also Volume 1, PB-271 091.
• Corporate Authors:

  International Harvester Company

  Truck Engineering Center
  Fort Wayne, Indiana,   United States  46801

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142
• Authors:
  • Razzacki, S T
• Publication Date: 1977-4

Media Info

• Pagination: 122 p.

Subject/Index Terms

• TRT Terms: Acoustic measuring instruments; Acoustics; Diesel engines; Emission control systems; Engines; Exhaust gases; Fans; Mufflers; Noise; Noise control; Sound level; Trucks
• Uncontrolled Terms: Noise reduction
• Old TRIS Terms: Acoustic measurement; Cooling fans; Engine noise
• Subject Areas: Environment; Highways; Motor Carriers; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00167069
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: DOT-TSC-OSt-76-14-V2Final Rpt.
• Contract Numbers: DOT-TSC-721-2
• Files: NTIS, TRIS
• Created Date: Oct 29 1978 12:00AM