UID:
edoccha_9960072252202883
Umfang:
1 online resource (358 p.)
ISBN:
1-281-00334-4
,
9786611003340
,
9780750661294
,
0-08-047475-6
Inhalt:
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 student
Anmerkung:
Description based upon print version of record.
,
Cover; Contents; Acknowledgements; Preface; About the author; Vehicle refinement: purpose and targets; Introduction and definitions; Scope of this book; The purpose of vehicle refinement; How refinement can be achieved in the automotive industry; The history of vehicle refinement: one representative 20-year example; Refinement targets; References; The measurement and behaviour of sound; How sound is created and how it propagates; Making basic noise measurements: the sound level meter, recording sound; Making basic noise measurements: the decibel scale, frequency and time weightings
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Analysis and presentation of noise dataSound power level, sound intensity level, sound pressure level; References; Introduction to logarithms; Exterior noise: assessment and control; Pass-by noise homologation; Noise source ranking; Air intake systems and exhaust systems: performance and noise effects; Tyre noise; References; Valve and port geometry; Interior noise: assessment and control; Subjective and objective methods of assessment; Noise path analysis; Measuring the sound power of IC engines and other vehicle noise sources; Engine noise; Road noise; A note on aerodynamic (wind) noise
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A note on brake noiseA note on squeak, rattle and tizz noises; Control of sound through absorption within porous materials; Control of sound by minimising transmission through panels; References; Some background information on systems; The convolution integral; The covariance function, correlation and coherence; The frequency response function; Plane waves in a tube with a termination impedance; The derivation of the linearised mass conservation equation; The derivation of the non-linear (and linearised) inviscid Euler equation; The measurement and behaviour of vibration
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Making basic vibration measurementsLaser-based vibration measurements; Analysis and presentation of vibration data: quantifying vibration; Modes of vibration and resonance; Modal analysis; References; Sources of vibration and their control; Introduction; Damping of vibrations; Vibration isolation and absorption; Engine and drivetrain vibrations; Vehicle and chassis vibrations: ride quality; References; Index
,
English
Weitere Ausg.:
ISBN 0-7506-6129-1
Sprache:
Englisch
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