Acoustical Materials

Acoustical Materials

Author: Pranab Saha

Publisher: SAE International

Published: 2021-08-11

Total Pages: 320

ISBN-13: 0768099463

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What is acoustics? What is noise? How is sound measured? How can the vehicle noise be reduced using sound package treatments? Pranab Saha answers these and more in Acoustical Materials. Acoustics is the science of sound, including its generation, propagation, and effect. Although the propulsion sources of internal combustion engine (ICE) vehicles and electric motor-powered vehicles (EV) are different and therefore their propulsion noises are different, both types of vehicles have shared noise concerns: Tire and road noise Wind noise Vehicle noise and vibration issues have been there almost from the inception of vehicle manufacturing. The noise problem in a vehicle is very severe and is difficult to solve only by modifying the sources of noise and vibration. Sound package treatments address the noise and vibration issues along the path to reduce in-cabin noise. In Acoustical Materials, readers will grasp the science of reducing sound and vibration using sound absorbers, sound barriers, and vibration dampers. Sound provides information on the proper operation of the vehicle, but if unchecked, can detract from the consumer experience within the vehicle and create noise pollution outside the vehicle. Acoustical Materials provides essential information on the basics of sound, vehicle noise source, how these are measured, how vehicle owners perceive sound, and ultimately, how to solve noise problems in vehicles using sound package materials.


Vehicle Noise and Vibration Refinement

Vehicle Noise and Vibration Refinement

Author: Xu Wang

Publisher: Elsevier

Published: 2010-03-12

Total Pages: 448

ISBN-13: 1845698045

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High standards of noise, vibration and harshness (NVH) performance are expected in vehicle design. Refinement is therefore one of the main engineering/design attributes to be addressed when developing new vehicle models and components.Vehicle noise and vibration refinement provides a review of noise and vibration refinement principles, methods, advanced experimental and modelling techniques and palliative treatments necessary in the process of vehicle design, development and integration in order to meet noise and vibration standards. Case studies from the collective experience of specialists working for major automotive companies are included to form an important reference for engineers practising in the motor industry who seek to overcome the technological challenges faced in developing quieter, more comfortable cars.The reader will be able to develop an in-depth knowledge of the source and transmission mechanisms of noise and vibration in motor vehicles, and a clear understanding of vehicle refinement issues that directly influence a customer's purchasing decision. - Reviews noise and vibration refinement principles, methods and modelling techniques necessary in vehicle design, development and integration in order to meet noise and vibration standards - Outlines objectives driving development and the significance of vehicle noise and vibration refinement whilst documenting definitions of key terms for use in practice - Case studies demonstrate measurement and modelling in industry and illustrate key testing methods including hand sensing and environmental testing


Noise, Vibration and Harshness of Electric and Hybrid Vehicles

Noise, Vibration and Harshness of Electric and Hybrid Vehicles

Author: Lijun Zhang

Publisher: SAE International

Published: 2020-12-29

Total Pages: 400

ISBN-13: 0768099641

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The noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is a critical feature for customers to assess the performance and quality of vehicles. NVH characteristics are higher among factors that customers use to judge the vehicle's quality.This book sets out to introduce the basic concepts, principles, and applications of the NVH development and refi nement of Battery Electric Vehicles (BEV), Hybrid Electric Vehicles (HEV), and Fuel Cell Electric Vehicles. Each type comes with its own set of challenges.


Noise and Vibration Control in Automotive Bodies

Noise and Vibration Control in Automotive Bodies

Author: Jian Pang

Publisher: John Wiley & Sons

Published: 2018-10-04

Total Pages: 532

ISBN-13: 1119515513

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A comprehensive and versatile treatment of an important and complex topic in vehicle design Written by an expert in the field with over 30 years of NVH experience, Noise and Vibration Control of Automotive Body offers nine informative chapters on all of the core knowledge required for noise, vibration, and harshness engineers to do their job properly. It starts with an introduction to noise and vibration problems; transfer of structural-borne noise and airborne noise to interior body; key techniques for body noise and vibration control; and noise and vibration control during vehicle development. The book then goes on to cover all the noise and vibration issues relating to the automotive body, including: overall body structure; local body structure; sound package; excitations exerted on the body and transfer functions; wind noise; body sound quality; body squeak and rattle; and the vehicle development process for an automotive body. Vehicle noise and vibration is one of the most important attributes for modern vehicles, and it is extremely important to understand and solve NVH problems. Noise and Vibration Control of Automotive Body offers comprehensive coverage of automotive body noise and vibration analysis and control, making it an excellent guide for body design engineers and testing engineers. Covers all the noise and vibration issues relating to the automotive body Features a thorough set of tables, illustrations, photographs, and examples Introduces automotive body structure and noise and vibration problems Pulls together the diverse topics of body structure, sound package, sound quality, squeak and rattle, and target setting Noise and Vibration Control of Automotive Body is a valuable reference for engineers, designers, researchers, and graduate students in the fields of automotive body design and NVH.


Guide to Modified Exhaust Systems

Guide to Modified Exhaust Systems

Author: Noise Free America

Publisher:

Published: 2017

Total Pages: 0

ISBN-13: 9781610353120

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This slim, portable manual--thoroughly illustrated with example photographs--is a handy spotter's guide for the most common types of illegal motorcycle exhaust modifications that produce excessive noise.


Vehicle Refinement

Vehicle Refinement

Author: Matthew Harrison

Publisher: Elsevier

Published: 2004-10-04

Total Pages: 358

ISBN-13: 0080474756

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High standards of NVH (Noise, Vibration and Harshness) performance are expected by consumers of all modern cars. Refinement is one of the main engineering and design attributes to be addressed in the course of developing new vehicle models and vehicle components. Written for students and engineering practitioners, this is the first book to address automotive NVH. It will help readers to understand and develop quieter, more comfortable cars. With chapters on the fundamentals of acoustics and detailed coverage of practical engineering solutions for noise control issues it is suitable for students of automotive engineering and engineers who haven't been trained in acoustics, and will be an important reference for practicing engineers in the motor industry.· The first book devoted to the refinement of noise and vibration in automobiles · Combines a detailed explanation of the fundamentals of acoustics and the science behind vehicle noise and vibration with practical tips and know-how for noise and vibration control. · Based on real world experience with a variety of automotive companies including Ford, BMW and Nissan


Curbing Traffic

Curbing Traffic

Author: Chris Bruntlett

Publisher: Island Press

Published: 2021-06-29

Total Pages: 240

ISBN-13: 1642831654

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In Curbing Traffic: The Human Case for Fewer Cars in Our Lives, mobility experts Melissa and Chris Bruntlett chronicle their experience living in the Netherlands and the benefits that result from treating cars as visitors rather than owners of the road. They weave their personal story with research and interviews with experts and Delft locals to help readers share the experience of living in a city designed for people. Their insights will help decision makers and advocates to better understand and communicate the human impacts of low-car cities: lower anxiety and stress, increased independence, social autonomy, inclusion, and improved mental and physical wellbeing. Curbing Traffic provides relatable, emotional, and personal reasons why it matters and inspiration for exporting the low-car city.


Environmental Impacts of Road Vehicles

Environmental Impacts of Road Vehicles

Author: R M Harrison

Publisher: Royal Society of Chemistry

Published: 2017-06-16

Total Pages: 265

ISBN-13: 1782628924

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The first concerns that come to mind in relation to pollution from road vehicles are direct emissions of carbon dioxide and toxic air pollutants. These are, of course, important but the impacts of road traffic are altogether more substantial. This volume of the Issues in Environmental Science and Technology Series takes a broader view of the effects on the environment and human health, excluding only injury due to road traffic accidents. By looking across the environmental media, air, water and soil, and taking account also of noise pollution, the volume addresses far more than the conventional atmospheric issues. More importantly, however, it examines present and future vehicle technologies, the implications of more extensive use of batteries in electric vehicles and the consequences of recycling vehicles at the end of use. Finally, examples of life-cycle analysis as applied to road vehicles are reviewed. This book is a comprehensive source of authoritative information for students studying pollution, and for policy-makers concerned with vehicle emissions and road traffic impacts more generally.