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- Ejsmont, Jerzy A., et al.
(författare)
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Influence of Tread Pattern on Tire/Road Noise
- 1984
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Ingår i: SAE technical paper series. - : Society of Automotive Engineers. - 0148-7191. ; 93:5, s. 632-640
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Tidskriftsartikel (refereegranskat)abstract
- An indoor road-wheel facility at the Technical University of Gdańsk was used to study the noise emission from a variety of tires with different tread patterns. The tires were run both on a smooth steel drum and a drum covered by a replica road surface. All tread patterns were hand-cut to generate several families of simple treads with regular pitch for a systematic study of how groove design influences noise. Most of the observed, tread influenced phenomena could be explained by generation mechanisms such as radial vibrations induced by tread block impact, pocket air pumping and pipe resonances in the grooves. For instance, it was observed that, when speed increases, sooner or later the tread block impact frequency will coincide with the pipe resonance frequency and then generate excessive noise at that speed.
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| 6. |
- Sandberg, Ulf, et al.
(författare)
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Road surface influence on tire/road noise
- 1980
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The importance of tire/road noise as part of total vehicle noise has recently received growing attention. It has been recognized as a major component of passenger car noise, even at moderate speeds, and as a significant component of truck noise at high speeds. The continuing development of more silent vehicle power units will even more emphasize tire/road noise. During the last decade, in many countries, more deeply textured anti-skid road surfacings were implemented which appeared to be noisier and drew public awareness on what could be called "pave¬ment noise". As a matter of fact, the surface characteristics of roads are now known as the main factors influencing car tire/road noise. Then, in order to harmonize safety and environmental require¬ments and also to define a reference surface for measurement and regulation purposes, a better knowledge of the noise-relevant surface characteristics is required.
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