Download or read book The Effects of Varying the Tire Cap Ply Sidewall Filler Height and Pavement Surface Texture on Tire pavement Noise Generation written by Robert Bernhard and published by . This book was released on 2003 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vehicle Tire Road Dynamics written by Tan Li and published by Elsevier. This book was released on 2022-11-24 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle/Tire/Road Dynamics: Handling, Ride, and NVH presents the connection between NVH and conventional vehicle dynamics where both tire and road play a key role. In this book, there is a chapter for handling dynamics that provides an introduction to ride dynamics and a chapter for ride dynamics that provides an introduction to NVH, presenting better coherence and synergy between these major areas of vehicle/tire dynamics. Accompanying the fundamental theories, case studies are given to facilitate comprehension. In addition to the experimental implementations, the state-of-the-art approaches to simulating vehicle/tire dynamics are presented from the viewpoint of both industry and academia. This new book bridges the gap for experts in tire or pavement NVH (also tire-pavement interaction noise) and those who are experts in vehicle dynamics. Conventional vehicle dynamics (e.g., handling/braking/cornering) is focused on low-frequency performance while NVH (noise/vibration/harshness) is focused on high-frequency performance. There is also another area called "ride" (comfort/stability) which focuses on mid-frequency. Presents a closed loop system for vehicle dynamics, covering handling, riden and NVH. Provides insights into how intelligent tires will enhance autonomous vehicle control and optimize multiple performances, especially for electric vehicles. Demonstrates how pavement characteristics could greatly influence vehicle handling/ride/NVH and improve/balance these performances.
Download or read book Influence of Pavement Surface Type on Tire Pavement Generated Noise written by T. Bennert and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement noise evaluations were conducted on 42 pavement surfaces in New Jersey using the Close Proximity Method (CPX) via the NCAT Noise Trailer. The CPX Method is a current ISO Standard that measures sound levels of the tire/pavement interface, thereby providing a method to evaluate solely the influence of pavement surface on traffic noise. The surfaces were comprised of both hot mix asphalt (HMA) and Portland cement concrete (PCC). The HMA surfaces consisted of dense-graded asphalt mixes (DGA), open-graded friction course (OGFC) with and without crumb rubber, stone-mastic asphalt (SMA), NovaChip®, and a microsurfacing slurry mix. The PCC surfaces, pavements and bridge decks, had varying surface treatments consisting of transverse tining, saw-cut tining, diamond grinding, and broom finish. The main focus of the research was to: 1) Evaluate how different pavement surfaces influence the generation of tire/pavement noise, 2) Evaluate the effect of vehicle speed on the tire/pavement generated noise, and 3) Provide guidance as to the repeatability of the CPX method and optimal test distance on the roadway to aid in maximizing testing efficiency.
Download or read book Relationship Between Pavement Surface Texture and Highway Traffic Noise written by Roger L. Wayson and published by Transportation Research Board. This book was released on 1998 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report will be of interest to state DOT pavement engineers, environmental specialists, and noise analysts. The relationship between pavement surface texture and highway traffic noise is discussed. Information for the synthesis was collected by surveying state transportation agencies and by conducting a literature search of both domestic and foreign publications."--Avant-propos.
Download or read book Energy and Environmental Concerns 2005 written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 2005 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ensuring a coordinated response to highway crashes and other incidents is vital to protecting public safety, keeping traffic moving, and reducing environmental impacts. The TRB National Cooperative Highway Research Program's NCHRP Research Report 981: Guidelines for Quantifying Benefits of Traffic Incident Management Strategies aims to offer guidance on Traffic Incident Management (TIM) programs, which can vary widely and may have different goals, guidelines, and methods applicable under a variety of data scenarios. Supplemental to the report is NCHRP Web-Only Document 301: Development of Guidelines on Quantifying Benefits of Traffic Incident Management Strategies, an Implementation Plan, and a Summary Presentation.
Download or read book Truck Noise I C Pavement Surface Effects on the Generation of Truck Tire Noise Final Report written by R. D. Kilmer and published by . This book was released on 1975 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Surface Curvature and Texture on Passenger Car Tire Noise Generation on Roadwheels and Roadways written by PR. Donavan and published by . This book was released on 1983 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Differences in surface curvature and surface texture are the only possible explanations for the differences in the noise of passenger car tires measured on-road and on a laboratory roadwheel. To determine the individual effects of curvature and surface texture, acoustic intensity measurements were made alongside four passenger car tires operating on roadwheel and roadway surfaces as the two parameters were varied independently. In the study, curvature was varied by using roadwheels of varying diameters and a flat roadway. Surface texture was varied both on the roadwheels and on the roadway. The results show that differences in surface texture account for most of the differences observed between noise measured on-road and on a roadwheel. Curvature effects were found to be minor over the range investigated here (roadwheels with diameter greater than 1.7 m). It was also observed that another important parameter in causing differences is direction of tire rotation and measurement side of tire.
Download or read book The Effect of Pavement Porosity on Tire Tread Block Noise Generation written by Sarah Amber Jones and published by . This book was released on 2000 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Pavement Surface Texture on Noise and Frictional Characteristics written by Ron Ridnour and published by . This book was released on 1987 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Trailer to Measure the Noise Generated at the Interface Between Tire and Pavement Surface written by Abdulhaq Hadi. Abedali Al-Haddad and published by . This book was released on 2020 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noise pollution is another environmental pollutant to be formally recognized as an actual threat to human health and the quality of life. The growth in noise pollution is unsustainable because it involves direct and cumulative adverse health effects. Pavement characteristics are one of the important factors affecting noise generation and propagation. The selection of an appropriate pavement mixture or texture with the proper maintenance efforts is the best method to control the main cause of pavement noise. Therefore, the major objective of this research study was to develop a methodology to evaluate tire-pavement noise. Other objectives were investigating the effect of the pavement surface characteristics on the generation and propagation of the noise of asphalt concrete (AC) and portland cement concrete (PCC) at varying traffic speeds, and finally the development of a statistical model for prediction tire-pavement noise at varying traffic speeds. Field noise measurements were performed using a noise trailer developed in this study and attached to the parent vehicle. Overall, PCC sections with higher skid resistance and lower average texture depth produced the highest noise levels compared with the conventional AC sections; PCC type had an average difference of about 1 dB(A) compared with the AC pavement. The presence of surface distress led to increasing the tire-pavement noise level by 7 dB(A). There were increments of about 1 dB(A) and 7 dB(A) to change vehicle speed from 20 to 40 km/h and from 40 to 60 km/h, respectively. Regarding the measurement period effect on the tire-pavement noise level, tire-pavement noise had an increment of about 7 dB(A) during daytime compared with night.
Download or read book Effects of Selected Pavement Surface Textures on Tire Noise written by Robert J. Mitrey and published by . This book was released on 1975 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Pavement Texture on Tire road Noise written by David Frederick Noble and published by . This book was released on 1975 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the potentially conflicting considerations for cost, durability, environment and safety the design engineer must have information on each such subject on which to base his decisions. The great variety of pavement textures for affecting the noise levels generated by traffic on the highway, made the need for information on the effect of pavement texture on tire road noise obvious. Noise measurements were made at 19 sites, including both bituminous (I-2, S-5, S-8 surface treatment) and portland cement concrete (aggregate exposed and grooved) pavements that had a wide variety of textures. A 1971 Plymouth 4-door sedan was used as the test vehicle. Both rib treads and snow treads were used in the tests. The data were analyzed in the linear (dB) and A-weighted (dBA) modes. Frequency analyses were made on ten recordings that were representative of most of the data. It was determined that pavement parameters such as density, type of aggregate, and the flat-mosaic aspect had very little effect on the intensity of the noise generated. The parameter that had the greatest effect was the degree of protuberance. From the analyses of the frequency content of the noise it was determined that the 3/4 inch (1.9 cm) transverse grooved and the dimpled textures generated relatively pure tones in the high frequency range most easily sensed by humans. Recommendations are made concerning the use of the various pavement surfaces tested.
Download or read book How to Reduce Tire pavement Noise written by and published by . This book was released on 2008 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Better practices to improve surface properties and thus tire-pavement noise are really about establishing a higher order of control over the texture and other surface properties. It is not about designing or building "innovative" surfaces, but rather the control of conventional texturing techniques. There should be a renewed awareness of the impact that some of the subtle operational characteristics can have on the texture as constructed. Predictable tire-pavement noise levels are not about how the texture is imparted as much as they are about the recognition and management of the sources of variability. Regarding the concrete, noise levels have to do with the fact that the contractors are imparting texture into a material with inherent variability in both stiffness and plasticity. Concrete changes from batch-to-batch, and it changes within a batch. The wind and the sun play a major role, as does the timing of the concrete mixing, transport, placement, and (eventually) the texturing and curing (the latter being important for acoustical durability).
Download or read book Effects of Selected Pavement Surface Textures on Tire Noise Second Interim Report written by Robert J. Mitrey and published by . This book was released on 1975 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impacts Related to Pavement Texture Selection written by and published by . This book was released on 1997 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tire Pavement Noise and Safety Performance written by Bradley O. Hibbs and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tire pavement Noise Generation written by Bradley Dean Wagner and published by . This book was released on 1993 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
