DEVELOPING QUIETER TRUCKS AND BUSES WITH THE AID OF THE LATEST NOISE MEASUREMENT TECHNIQUES

Commercial vehicle manufacturers have long been aware of the need to produce quieter vehicles in terms of: (a) legislation, (b) improvement of driver's environment, and (c) acceptability to the public at large. Many have demonstrated that given an all new design, low noise vehicles can successfully be produced. Major problems arise, however, when attempting to quieten existing vehicles or those of a strictly traditional design. To tackle these major problems, acoustic engineers have had to investigate more closely how vehicle noise is generated and how trucks and buses are assessed for noise during the standard legislative test procedures. Leyland have used their new investments, in test facilities and computer based analysis equipment, to generate these deeper insights, into the causes of vehicle noise. This paper illustrates some of the latest test and development techniques which have been used to investigate vehicle noise, in a practical way, with due regard to prototype development time-scales and costs.

• Supplemental Notes:
  • ISATA 83. Volume 2. International Symposium on Automotive Technology and Automation with particular reference to Electronics and Energy Saving in the Automotive Industries: Product and Process, Cologne, 19-23 September 1983.
• Corporate Authors:

  Automotive Automotion Limited

  42 Lloyd Park Avenue
  Croydon CRO 5SB, Surrey,   England 

  Ford Werke AG

  ,   Germany 
• Authors:
  • Barnes, M
• Publication Date: 1983

Media Info

• Features: Figures; References;
• Pagination: 20 p.

Subject/Index Terms

• TRT Terms: Buses; Measurement; Noise; Test procedures; Trucks
• Subject Areas: Environment; Motor Carriers; Public Transportation; Safety and Human Factors;

Filing Info

• Accession Number: 00393227
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS 037 292
• Files: HSL, USDOT
• Created Date: Mar 29 1985 12:00AM