2 edition of influence of tyre and road surface design on tyre rolling resistance. found in the catalog.
influence of tyre and road surface design on tyre rolling resistance.
A. R. Williams
|Series||Technical papers / Institute of Petroleum -- 81-003|
Low rolling resistance tyres have been around for quite a while but in the past the compounds used to make these tyres tended to decrease the traction ability of the tyre. However a recent breakthrough in technology has improved the situation – The Author: Tyre Review. . Williams A R, The Influence of Tyre and Road Surface Design on Tyre Rolling Resistance, Inst Petroleum Report, IPSI (), London, UK. . Luchini J R, Peters I M & Arthur R H, Tyre Sci Technol, () . Warholic, Tyre Rolling Loss Prediction from Finite Element Analysis of a Statically Loaded Tyre, M. S. E. Thesis Author: N. Amara, Nageswara Rao.
types by fuel consumption. The surface with the greatest rolling resistance, in a cell with porous hot mix asphalt, had a coefficient of rolling resistance 24 percent greater, and at 50 mph, a fuel consumption percent greater, than the surface with the lowest rolling resistance, in File Size: 1MB. The finite element analysis (FEA) tire model for tire rolling resistance has been previously presented. The results of the testing showed changes in rolling resistance as a function of tread depth that were inconsistent between by: 9.
The fastest rolling tire, the TPI Strada 24mm and the widest tire, the 27mm Paris-Roubaix, had the biggest increase in rolling resistance ( Watts) when dropping pressure from psi . against a perfectly smooth, level and rigid surface would have no rolling resistance. Rolling resistance is neither equivalent nor proportional to the friction between the tire and the road. Rather, rolling resistance is due primarily to hysteretic losses from deformations induced on the wheel or tire .
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Abstract. Tyre performance, one of the critical factors for vehicle users, is strongly related to the road surface characteristics, most notably to the pavement texture.
Phenomena that occur at the tyre/road interface affect tyre friction (skid resistance), rolling resistance, tyre wear and tyre/road noise. This article deals with relationship between surface texture and rolling resistance of light and heavy vehicle by: Depending on pavement texture wavelength, the texture chiefly affects tyre/road friction, rolling resistance, interior and exterior noise, tyre wear, and ride comfort.
Both tyre and road design can be utilised to reduce rolling resistance. In both cases a reliable simulation tool is needed which is able to quantify the influence of design parameters on the rolling resistance of a tyre rolling on a specific road by: 8.
The Influence of Road Surface Texture on Tire Rolling Resistance Tire rolling resistance losses can be significantly influenced by road surface texture. Data obtained from laboratory tire dynamometer tests and outdoor tests conducted on various paved public type roads indicates that tire rolling resistance losses increase as road surface Cited by: Influence of Road Wetness on Tire-Pavement Rolling Resistance Fig.
4 Water film sensor on the test track in Horsens. (a) (b) Fig. 5 SMA8 surface: (a) dry; (b) wet. (a) (b) Fig. 6 Pavement at the test site Rokinge: (a) dry conditions; (b) wet Size: 4MB.
In both cases a reliable simulation tool is needed which is able to quantify the influence of design parameters on the rolling resistance of a tyre rolling on a specific road : Carsten Hoever.
Tab. 2 Influence of various road surface parameters on tire performance Parameter Wet skid r e-sistance Tire/road noise Rolling r e-sistance Texture IRI Stiffness. Open voids Based on the table it is possible to specify the design pa-rameters for "ideal" road surface.
Depending on pavement texture wavelength, the texture chiefly affects tyre/road friction, rolling resistance, interior and exterior noise, tyre wear, and ride comfort. The article presents results of investigations on the influence of road surface unevenness on the rolling resistance of passenger car and truck by: 4.
However, there are physical forces that make the vehicle resistant to moving – for example, the weight of the car, gradient, air resistance, and road surface friction, which influences the tyres’ rolling resistance.
As a tyre rolls through its footprint, it must overcome energy loss which must be made up by the engine using more fuel.
The reduction of rolling resistance is essential for a more environmentally friendly road transportation sector. Both tyre and road design can be utilised to reduce rolling resistance. In both cases a reliable simulation tool is needed which is able to quantify the influence of design parameters on the rolling resistance of a tyre rolling on a specific road by: 8.
Road surface influence on tyre/road rolling resistance / Report MIRIAM_SP1_04 Main author: Ulf Sandberg. Swedish Road and Transport Research Institute (VTI) VI Correlation between RRC and texture 33 10 RESULTS FROM THE MIRIAM ROUND ROBIN TEST RELATED TO ROAD SURFACE INFLUENCE ON ROLLING RESISTANCE 35 Introduction 35File Size: 1MB.
A unique “quarter-car” trailer has been designed and built at the Belgian Road Research Center for measuring the rolling resistance of a reference tire on the road. Its design and performances are briefly outlined. It has been used for investigating the influence of road-surface characteristics on the rolling drag experienced by a car by: Influence of road surface on tyre rolling sound emission Report from the NordTyre project, part 2: Passenger car tyres.
Truls Berge, SINTEF ICT, Norway Informal document GRB‐59‐05‐Rev.1 (59th GRB, 28‐30 Januaryagenda item 9). One of the major factors is the tyres rolling resistance. tyre rolling resistance is the energy that your vehicle needs to provide to the tyres in order to maintain movement at a constant speed over a surface, to sum it all up it is basically the force required to keep a tyre rolling.
The same shape on the inside and outside means high levels of efficiency, speed and road safety. The tyre tread patterns are fundamental for improving the vehicle and its performance on the road.
They influence and lower the rolling resistance and the wet traction and, depending on the type of tyres used, they lower the width of suspension. COMPARISON OF TYRE ROLLING RESISTANCE FOR DIFFERENT MOUNTAIN BIKE TYRE DIAMETERS AND SURFACE CONDITIONS Wynand STEYN & Janike WARNICH Department of Civil Engineering, University of Pretoria, Pretoria, Republic of South Africa ABSTRACT Tyre-road rolling resistance is a major factor in the performance of a vehicle.
Effect of Tyre Inflation Pressure on Rolling Resistance: Comparing the Values of Coefficient of Rolling Resistance and Rolling Resistance at Variable Tyre Inflation Pressure 1. Rolling resistance, is nothing but the rolling drag, is the force resisting the motion when a body rolls on a : Siddharth Tripathi, Amit Kumar Karwal, Dushyant wazir, Mukund Mishra.
A unique “quarter-car” trailer has been designed and built at the Belgian Road Research Center for measuring the rolling resistance of a reference tire on the road.
Its design and performances are briefly outlined. It has been used for investigating the influence of road-surface characteristics on the rolling drag experienced by a car tire.
Weight — the lower weight of the vehicle with tyres, the lower rolling resistance. In general, low-profile, narrow tyres are lighter.
The height of the tyre also influences its rigidity (lower tyres have lower rolling resistance). Construction and shape of the tread — the rubber compound and optimised tread pattern may reduce the rolling resistance coefficient even by 60%.
Road texture measurements. Following the protocol reported in ISOtexture spectra were calculated as a function of wavenumber however, for the sake of clarity, results are plotted as a function of wavelength, its inverse. Texture spectra were evaluated for road profiles and tyre envelopments, allowing a comparison of the by: 5.
A subset of tyre construction: tyre treads. A proper tread design improves traction, improves handling and increases Durability. It also has a direct effect on ride comfort, noise level and fuel efficiency. Each part of the tread of your tyre has a different name, and a different function and effect on the overall tyre.
Your tyres might not File Size: KB.Effect of tyre ply design Tyre variables and tyre performance Road surface parameters Tyre input and output quantities. The effective rolling radius 2.
The rolling tyre. 3. The tyre under braking or driving conditions. Practical brakeslip Longitudinal slip Size: 4MB.However the design of a tyre is a complex trade-oﬀ problem, because a tyre needs to perform under varying conditions.
In ﬁgure the main components of a radial tyre can be seen. All these diﬀerent components provide speciﬁc properties. For example the tread should have good traction for all weather conditions, low rolling resistance.