noisesqueakvibrationharshness
Noise, squeak, and vibration harshness, often abbreviated as NVH, refers to the study and mitigation of unwanted sounds, vibrations, and harshness experienced by occupants of a vehicle or within other mechanical systems. This field is critical in product development, particularly in the automotive industry, to ensure occupant comfort, perceived quality, and overall user satisfaction. NVH encompasses a wide range of phenomena, from the low-frequency rumble of an engine to the high-frequency buzz of a poorly fitted trim piece. Engineers and designers use sophisticated measurement tools and simulation techniques to identify, analyze, and reduce these undesirable characteristics.
The sources of NVH are diverse. They can originate from the powertrain, driveline, suspension, tires, brakes,
Addressing NVH involves a multi-faceted approach. This includes careful design of components to minimize inherent noise