This item is in: Materials > Transport materials and technologies > Automotive

Vehicle noise and vibration refinement

Edited by Xu Wang, RMIT University, Australia

 - 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

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.

ISBN 1 84569 497 X
ISBN-13: 978 1 84569 497 5
March 2010
452 pages  234 x 156mm  hardback  
£150.00 / US$255.00 / €190.00

Usually dispatched within 24 hours

About the editor

Dr Xu Wang is a Senior Lecturer in the School of Aerospace, Mechanical and Manufacturing Engineering at the Royal Melbourne Institute of Technology. He has approaching 20 years’ research and development experience in vehicle design and NVH specialist engineering.

Titles which may also be of interest:
The science and technology of materials in automotive engines

Contents

PART 1 INTRODUCTION
PART 2 MEASUREMENT AND MODELLING
PART 3 NOISE AND VIBRATION REFINEMENT IN VEHICLE SYSTEMS

PART 1 INTRODUCTION

Rationale and history of vehicle noise and vibration refinement
X Wang, RMIT University, Australia
 - Introduction
 - Objectives and significance of vehicle noise and vibration refinement
 - Scope of vehicle noise and vibration refinement
 - The vehicle development process and vehicle noise and vibration refinement
 - Vehicle noise and vibration term definitions
 - History of motoring and vehicle refinement
 - References

Target setting and benchmarking for vehicle noise and vibration refinement
X Wang, RMIT University, Australia
 - Introduction
 - Benchmarking of vehicle noise and vibration
 - Target setting of vehicle noise and vibration
 - References and bibliography

PART 2 MEASUREMENT AND MODELLING

Vehicle vibration measurement and analysis
X Wang, RMIT University, Australia
 - Introduction
 - Hand sensing
 - Basic vibration measurements
 - Vibration response investigation and vibration test
 - Environmental testing
 - Mounting the test object
 - Measuring complex elastic modulus
 - Quoting vibration levels
 - Vibration isolation
 - The vibration absorber
 - Case studies
 - Bibliography

Vehicle noise measurement and analysis
X Wang, RMIT University, Australia
 - Introduction
 - Sound fundamentals
 - Vehicle noise
 - Measuring microphones
 - Measuring amplifiers
 - Calibration
 - Background noise
 - Recording sound
 - Analysis and presentation of noise data
 - Artificial head technology and psychoacoustics
 - Bibliography

Random signal processing and spectrum analysis in vehicle noise and vibration refinement
X Wang, RMIT University, Australia
 - Random data and process
 - Correlation analysis
 - Fourier series
 - Spectral density analysis
 - Relationship between correlation functions and spectral density functions
 - Linear systems
 - Weighting functions
 - Relationship between the complex frequency response and impulsive response
 - Frequency response functions
 - Bibliography

Theory and application of modal analysis in vehicle noise and vibration refinement
M Kronast, Ford-Werke GmbH, Germany
 - Introduction
 - Application of modal analysis in vehicle development
 - Theory of modal analysis
 - Methods for performing modal analysis
 - Limitations and trends
 - References

Mid– and high-frequency problems in vehicle noise and vibration refinement – statistical energy analysis and wave approaches
X Wang, RMIT University, Australia
 - Introduction
 - Modal approach
 - Energy sharing between two oscillators
 - Energy exchange in multi–degree–of–freedom systems
 - Wave approach to the statistical energy analysis (SEA)
 - Procedures of statistical energy analysis approach
 - Evaluation of the statistical energy analysis subsystem parameters
 - Hybrid deterministic and statistical energy analysis approach
 - Application example
 - References

Advanced simulation techniques in vehicle noise and vibration refinement
N Hampl, Ford-Werke GmbH, Germany
 - Introduction
 - Basic simulation techniques
 - Frequency or time-domain methods
 - Simulation process
 - Application of virtual reality for vehicle noise and vibration refinement
 - Conclusions
 - Sources of further information and advice
 - References

Advanced experimental techniques in vehicle noise and vibration refinement
T Ahlersmeyer, Ford-Werke GmbH, Germany
 - Transfer path analysis technique
 - Sound intensity technique for source identification
 - Acoustic camera: beamforming and nea field acoustic holograph techniques for source diagnostics
 - Laser techniques for dynamic analysis and source identification
 - Sound quality and psychoacoustics measurement and analysis
 - Ultra sound diagnostic techniques
 - Advanced material testing techniques
 - Advanced tachometer reference tracking techniques
 - References

PART 3 NOISE AND VIBRATION REFINEMENT IN VEHICLE SYSTEMS

Aerodynamic noise and its refinement in vehicles
S Watkins, RMIT University, Australia
 - The importance of aerodynamic noise
 - Aerodynamic noise sources: background
 - Modeling, relevant theory and the possibilities of simulation
 - Causes of hydrodynamic pressure fluctuations and their reduction
 - Aeroacoustic measurement techniques and psychoacoustic analysis
 - Conclusions
 - Acknowledgments
 - References

Active noise and vibration control in vehicles
S J Elliott, University of Southampton, UK
 - Introduction
 - Physical principles and limits of active control
 - Control strategies
 - Commercial systems
 - Future trends
 - Sources of further information and advice
 - References

Noise and vibration refinement of powertrain systems in vehicles
D C Baillie, General Motors Holden Ltd, Australia
 - Introduction
 - Principles and methods
 - Powertrain noise sources and paths
 - Enablers and applications
 - Future trends
 - Conclusions
 - References

Vehicle interior noise refinement – cabin sound package design and development
D Vigé, Centro Ricerche Fiat, Italy
 - Introduction
 - Internal noise sources in a vehicle
 - Vehicle noise paths
 - Basic principles
 - Sound package solutions to reduce the interior noise
 - Simulation methodologies for the interior noise
 - Target setting and deployment on vehicle subsystems
 - Conclusions
 - References

Noise and vibration refinement of chassis and suspension
B Reff, Ford-Werke GmbH, Germany
 - Introduction
 - Road-induced noise, vibration and harshness (NVH) basic requirements and targets
 - Foundations of road-induced noise, vibration and harshness
 - The tyre: the most complex component?
 - Suspension
 - Mounts and bushes – the art of isolation
 - Future trends
 - References

Body structure noise and vibration refinement
G M Goetchius, Material Sciences Corporation, USA
 - Introduction
 - Basic principles
 - Global body stiffness
 - Body attachment behaviour
 - Body attachment design strategies
 - Body panel behaviour
 - Panel design strategies
 - Future trends
 - Conclusions
 - References

Vehicle noise and vibration strategy-based diagnostics
X Wang, RMIT University, Australia
 - Introduction
 - Wheel and tyre vibrations
 - Balancing
 - Driveline vibration
 - Propshaft phasing
 - Bibliography