Download or read book A Final Report for the Study of the Effect of Road Roughness on Truck Tire Rolling Resistance written by T. R. Dunn and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of the Effect of Road Roughness on Truck Tire Rolling Resistance written by Canada. Transport Canada. Road Safety and Motor Vehicle Regulation Directorate and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring Road Roughness and Its Effects on User Cost and Comfort written by Thomas D. Gillespie and published by ASTM International. This book was released on 1985 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Further Study of the Feasibility of Using the Truck Tire Rolling Resistance Rig for Monitoring Road Roughness written by Canada. Transport Canada. Surface. Road Safety & Motor Vehicle Regulation and published by . This book was released on 1989 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Final Report for Further Study of the Feasibility of Using the Truck Tire Rolling Resistance Rig for Monitoring Road Roughness written by T. R. Dunn and published by . This book was released on 1989 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feasibility Study of Using the Truck Tire Rolling Resistance Measurement System for Monitoring Road Roughness Final Report written by and published by . This book was released on 1987 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanistic Modeling of the Effect of Pavement Surface Texture and Roughness on Vehicle Rolling Resistance written by Shabnam Rajaei and published by . This book was released on 2019 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rolling resistance of a vehicle plays an important role in the vehicle's fuel consumption. There are different mechanisms involved in the rolling resistance, namely, vehicle dynamics, tire bending and deformation, and tire tread deformation. Pavement surface profile is one of the factors that influences the rolling resistance and it can be divided into four scales of roughness, mega-, macro- and micro-texture. These scales influence different mechanisms of the rolling resistance. The micro-texture scale, which has the shortest wavelengths (less than 0.5 mm), despite being very important for friction and safety, has a negligible effect on the rolling resistance of the tire. The macro-texture scale, with wavelengths smaller 50 mm, mostly affects the tread deformation and tire bending mechanisms of rolling resistance. The mega-texture scale, which includes both wavelengths within and beyond the tire contact patch (between 50 and 500 mm), affects the vehicle dynamics and suspension system in addition to the tire deformation and bending. The roughness scale consists of any wavelengths larger than 500 mm and therefore mostly affects the deformation in the vehicle's suspension. The main aim of this study is to evaluate the effect of these scales on the vehicle's rolling resistance. For capturing the effect of the full surface profile on rolling resistance a model is required such that it is capable of evaluating all of the mechanisms involved in the rolling resistance. Such a model should include the tire as well as the suspension system of the vehicle. Here, for modeling the deformations within the tire, including tire bending and tread deformation, a full 3D finite element tire model is developed and verified. For investigating the energy dissipation in the vehicle suspension system, the tire model is combined with a quarter-car mechanical model, which is a simplified system of a spring and a dashpot in parallel. After decomposition of the surface profile into the above-mentioned scales, the root mean square or RMS is chosen as a common parameter for surface profile characterization to have a robust comparison of the effect of these scales. The effect of each scale of the profile on the rolling resistance is then evaluated separately using the developed models. For each scale, the effect of profile on the tire as well as the suspension is assessed. Then the effects of different scales are compared with each other. The macro-texture scale is found to mostly affect the tire deformations and have a negligible influence on the suspension system. The effect of mega-texture is found to be considerable, influencing the rolling resistance within the tire more than the vehicle's suspension. The roughness scale, however, affects the suspension system more than the tire. For low values of RMS, all of the scales, regardless of their wavelength, influence the rolling resistance similarly. However, for higher RMS values, the mega-texture shows a higher total rolling resistance than roughness. Although high values of RMS for mega-texture can be related to local events in the road profile, they can influence the rolling resistance noticeably.In addition, a good agreement is found between the developed model and the existing empirical studies for different scales. Moreover, the influences of vehicle operating conditions including applied load, driving velocity, tire temperature, and inflation pressure on the effect of surface profile on rolling resistance are investigated.
Download or read book Estimating the Effects of Pavement Condition on Vehicle Operating Costs written by Karim Chatti and published by Transportation Research Board. This book was released on 2012 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Download or read book Experimental and Analytical Study of the Effects of Road Roughness on Vehicle Rolling Resistance with Emphasis on Coast down Techniques and Computer Simulation written by Mark Anthony Funfsinn and published by . This book was released on 1977 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Truck Tire Rolling Resistance Rig Road Roughness Shaker Testing written by Canada. Transport Canada. Road Safety and Motor Vehicle Regulation and published by . This book was released on 1990 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Characteristics of Roadways written by W. E. Meyer and published by ASTM International. This book was released on 1990 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory and Full scale Parametric Studies of the Rolling Resistance of Radial and Bias ply Heavy Service Truck Tires Final Report written by Leonard Bogdan and published by . This book was released on 1980 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vehicle road Interaction written by Bohdan T. Kulakowski and published by ASTM International. This book was released on 1994 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a conference held in Santa Barbara, California, in May 1992. Topics include simulation and analysis of trucks using the program BAMMS, predicting vertical dynamic tire forces of heavy trucks, factors affecting the design and use of the Texas Mobile Load Simulator, traction tests on an
Download or read book Tire Rolling Losses and Fuel Economy written by and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topics covered in P-74 are tire design and construction; testing methods; analytical methods and models; road and vehicle effects; and tire materials.
Download or read book Effects of Road Roughness on Vehicular Rolling Resistance written by X-P Lu and published by . This book was released on 1985 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: A linear model for evaluating the influence of road roughness on total vehicular rolling resistance is presented. This model considers rolling resistance to be the result of three energy dissipation mechanisms:.
Download or read book Evaluation of Truck Tire Rolling Resistance Bearing Losses and Road Surface Effects on Rolling Resistance Phase 1 written by Davis, Eryou and Associates Ltd and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Roughness of Road Surface on Rolling Resistance written by Warren Russell Spencer and published by . This book was released on 1926 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
