COMPUTER PREDICTION AND ANALYSIS OF PASS-BY EXTERNAL NOISE TEST RESULTS
Continued tightening of motor vehicle external noise legislation places an ever increasing burden upon manufacturers to meet more stringent noise requirements. Techniques for reduction of pass-by test levels require detailed knowledge of source strengths and positions on the vehicle. Recently developed methods of data acquisition and analysis are described. The presentation of the results of pass-by tests in the form of spectrum maps with correction for the effect of doppler shift is shown. A computer program is developed to predict noise and vehicle performance during the pass-by test from fundamental vehicle and component data, thereby enabling the evaluation of changes in vehicle design or test standards.
- 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.
Automotive Automotion Limited42 Lloyd Park Avenue
Croydon CRO 5SB, Surrey, England
Ford Werke AG, Germany
- Townsend, G
- Publication Date: 1983
- Features: Figures;
- Pagination: 22 p.
- TRT Terms: Computer programs; Data analysis; Data collection; Mathematical analysis; Noise; Vehicle design; Vehicle performance
- Old TRIS Terms: Pass-by tests
- Subject Areas: Design; Environment; Safety and Human Factors;
- Accession Number: 00393229
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: HS-037 294
- Files: HSL, USDOT
- Created Date: Mar 29 1985 12:00AM