FEASIBILITY OF A LOW ROLLING RESISTANCE TIRE SUITABLE FOR SAFE HIGH SPEED DRIVING
A relationship was observed between tire rolling resistance and tire safety record at high speed driving. The relationship originates in the effect of the wall mechanical loss on tire rolling resistance and on the tendency to form standing waves at high speed driving. The relationship is such that low rolling resistance and safe high speed driving appear to be mutually exclusive. A possible solution of the problem lies in the difference of deformation frequency between the normal speed driving (about 10 cps) and high speed standing waves (about 300 cps), which allows construction of rubber cord composites which exhibit a low loss at about 10 cps range and a high loss at about 300 cps range. A comparison of the mechanical properties of tire walls of present construction (using steel and PET cords) with several constructions designed for exploratory purposes shows that present tire design can be improved considerably to meet these criteria. A polymeric cord such as PET has a considerable advantage over the heavier and stiffer steel cord. At this stage, studies were limited to tire wall composites reinforced with PET cords. It is expected that similar frequency responses are achievable also with other polymeric cords.
- Reproduced from "Review of Allied Tire Mechanics Research."
Allied CorporationCorporate Technology, P.O. Box 1021R
Morristown, NJ United States 07960
- Prevorsek, D C
- KWON, Y D
- Publication Date: 1983
- Features: Appendices; Figures; References;
- Pagination: 29 p.
- TRT Terms: Design; High speed ground transportation; High speed vehicles; Mechanical properties; Rolling resistance; Speed; Tires
- Subject Areas: Design; Railroads; Safety and Human Factors; Vehicles and Equipment;
- Accession Number: 00395841
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: HS-038 127
- Files: HSL, USDOT
- Created Date: Jul 31 1985 12:00AM