Vehicle Refinement: Controlling Noise & Vibration in Road Vehicles

Editor(s): Matthew Harrison

Year: 2004       Price: US$ 79.95        

R-364       Number of Pages: 345


Vehicle Refinement: Purpose and Targets

    Introduction and definitions
    Scope of this work
    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

The measurement and behaviour of sound

    How sound is created and hot it propagates
    Making basic noise measurements: the sound level meter,
        recording sound
    Making basic noise measurements: the decibel scale, frequency
        and time weightings
    Analysis and presentation of noise data
    Sound power level, sound intensity level, sound pressure level

Exterior noise: assessment and control

    Pass by noise homologation
    Noise source ranking
    Air intake systems and exhaust systems: performance and noise
        effects
    Tyre noise

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)
    A note on brake noise
    A note on squeak, rattle and tizz noises
    Control of sound through absorption within porous materials
    Control of sound by minimising transmission through panels

The measurement and behaviour of vibration

    Making basic vibration measurements
    Laser based vibration measurements
    Analysis and presentation of vibration data: quantifying vibration
    Modes of vibration and resonance
    Modal analysis

Sources of vibration and their control

    Introduction
    Damping of vibrations
    Vibration isolation and absorption
    Engine and drivetrain vibrations
    Vehicle and chassis vibrations: ride quality



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