Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces PDF full book. Access full book title Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces by Pinay, Julien. Download full books in PDF and EPUB format.
Author: Pinay, Julien
Publisher: KIT Scientific Publishing
ISBN: 3731513285
Category :
Languages : en
Pages : 196
Get Book Here
Book Description
Ihrer Arbeit in der Originalsprache: This work aims at identifying relevant road surface characteristics to mitigate tire-road noise of free-rolling tires using a systematic approach. As using open porous roads is already known as an efficient measure to reduce tire rolling noise, this study will focus on compact road surfaces which have a low acoustic absorption. Measurements on standardized ISO 10844 test tracks and on public roads are used to study the norm's representativity and its completeness.
Author: Pinay, Julien
Publisher: KIT Scientific Publishing
ISBN: 3731513285
Category :
Languages : en
Pages : 196
Get Book Here
Book Description
Ihrer Arbeit in der Originalsprache: This work aims at identifying relevant road surface characteristics to mitigate tire-road noise of free-rolling tires using a systematic approach. As using open porous roads is already known as an efficient measure to reduce tire rolling noise, this study will focus on compact road surfaces which have a low acoustic absorption. Measurements on standardized ISO 10844 test tracks and on public roads are used to study the norm's representativity and its completeness.
Author: Thorgeirsson, Adam Thor
Publisher: KIT Scientific Publishing
ISBN: 3731513714
Category :
Languages : en
Pages : 190
Get Book Here
Book Description
In this work, an extension of the federated averaging algorithm, FedAvg-Gaussian, is applied to train probabilistic neural networks. The performance advantage of probabilistic prediction models is demonstrated and it is shown that federated learning can improve driving range prediction. Using probabilistic predictions, routing and charge planning based on destination attainability can be applied. Furthermore, it is shown that probabilistic predictions lead to reduced travel time.
Author: Jauch, Jens
Publisher: KIT Scientific Publishing
ISBN: 3731513323
Category :
Languages : en
Pages : 264
Get Book Here
Book Description
This work describes a method for weighted least squares approximation of an unbounded number of data points using a B-spline function. The method can shift the bounded B-spline function definition range during run-time. The approximation method is used for optimizing velocity trajectories for an electric vehicle with respect to travel time, comfort and energy consumption. The trajectory optimization method is extended to a driver assistance system for automated vehicle longitudinal control.
Author:
Publisher:
ISBN:
Category : Air travel
Languages : en
Pages : 730
Get Book Here
Book Description
"For more than 50 years, the Transportation Research Record has been internationally recognized as one of the preeminent peer-reviewed journals for transportation research papers from authors in the United States and from around the world. One of the most cited transportation journals, the TRR offers unparalleled depth and breadth in the coverage of transportation topics from both academic and practitioner perspectives. All modes of passenger and freight transportation are addressed in papers covering a wide array of disciplines, including policy, planning, administration, economics and financing, operations, construction, design, maintenance, safety, and more."--Publisher's website
Author: Ulf Sandberg
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 104
Get Book Here
Book Description
Author: Lloyd Allen Herman
Publisher:
ISBN:
Category : Noise control
Languages : en
Pages : 112
Get Book Here
Book Description
A portion of I-76, near Akron, OH, had been reconstructed by the Ohio Department of Transportation (ODOT) using concrete to replace the previous surface, which was constructed of asphalt. In the process of reconstruction, the concrete surface was textured with random transverse grooves to comply with the current ODOT specification. Subsequent to construction, residents living in the project area as far as 2600 ft (800 m) from the roadway, perceived an unfavorable difference in their noise environment, which they attributed to the new concrete pavement used on the reconstruction project. Therefore, a project was initiated to re-texture the pavement surface by diamond grinding. The transverse grooves were replaced with longitudinal grooves. Traffic noise measurements were made before and after grinding at five sites in the project area, at distances from 7.5 m to 120 m from the center of the near travel lane. The average reduction in broadband noise at 7.5 m was 3.5 dB, and the average reduction at15m was 3.1 dB. Spectrum analysis showed the greatest reduction in noise occurred at frequencies above 1 kHz and that the retexuring had little to no effect on frequencies less than 200 Hz.
Author: Jerzy A. Ejsmont
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 52
Get Book Here
Book Description
Author: Jochen Eisenblaetter
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Exterior vehicle noise has a very big impact when it comes to environmental noise pollution. Due to the decrease of the other noise sources of a passenger car, like power-train and air turbulence noise in the last decade, the tyre/road noise has become a more important part in the overall noise generation of a vehicle nowadays. It is considered as the main noise source in nearly all driving conditions, especially with increasing vehicle speed. The easiest idea to tackle this pollution is to introduce rules like speed-limits to control the noise at a certain area or time. More interesting, however, is to approach the problem of unwanted noise directly at the source. This Thesis, carried out at Loughborough University, aims to give a better understanding about the basic noise generation mechanisms at the tyre/road interface. Especially, the air related mechanisms of closed cavities are analysed. With the usage of a solid rubber tyre, unique measurements have been carried out and the results are compared to the theories already existing in the literature. These measurements reveal some of the strengths and weaknesses of the current understanding of air related noise generation.
Author: Ulf Sandberg
Publisher:
ISBN: 9789163126109
Category : Automobiles
Languages : en
Pages : 616
Get Book Here
Book Description
Author: Roger L. Wayson
Publisher: Transportation Research Board
ISBN: 9780309068215
Category : Technology & Engineering
Languages : en
Pages : 96
Get Book Here
Book Description
"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.
