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2014•Encyclopedia of Automotive EngineeringRequires access

Drivetrain Noise, Vibration, and Harshness

Homer Rahnejat, Stephanos Theodossiades, Patrick C. Kelly, M. T. Menday

Open publisher page 10 citations

Abstract

Abstract This chapter describes the plethora of noise, vibration, and harshness (NVH) concerns in vehicular drivetrain systems. With a trend toward compact lightweight lightly damped drivetrain systems, such phenomena are likely to exacerbate. SignificantNVHconcerns such as transmission rattle, driveline clonk, and clutch in‐cycle whoop are described and methods of measurement and modeling are described. TheseNVHphenomena are regarded as refinement quality issues by vehicle customers, thus a concern to the automobile industry. Various methods of palliation are also discussed.

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What this paper is about

Abstract This chapter describes the plethora of noise, vibration, and harshness (NVH) concerns in vehicular drivetrain systems. With a trend toward compact lightweight lightly damped drivetrain systems, such phenomena are likely to exacerbate. SignificantNVHconcerns such as transmission rattle, driveline clonk, and clutch in‐cycle whoop are described and methods of measurement and modeling are described. TheseNVHphenomena are regarded as refinement quality issues by vehicle customers, thus a concern to the automobile industry. Various methods of palliation are also discussed.

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Available abstract

Abstract This chapter describes the plethora of noise, vibration, and harshness (NVH) concerns in vehicular drivetrain systems. With a trend toward compact lightweight lightly damped drivetrain systems, such phenomena are likely to exacerbate. SignificantNVHconcerns such as transmission rattle, driveline clonk, and clutch in‐cycle whoop are described and methods of measurement and modeling are described. TheseNVHphenomena are regarded as refinement quality issues by vehicle customers, thus a concern to the automobile industry. Various methods of palliation are also discussed.

Key concepts: Noise, vibration, and harshness, Harshness, Drivetrain, Powertrain, Clutch, Automotive engineering, Vibration, Noise (video)

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