NVH in Automobiles

Noise, vibration, and harshness (NVH) is the observe and modification of the noise and vibration characteristics of vehicles. at the same time as noise and vibration can be without difficulty measured, harshness is a subjective quality, and is measured either through private critiques, or with analytical equipment that can provide results reflecting human subjective impressions. Indoors NVH deals with noise and vibration skilled by the occupants of the cabin, while exterior NVH is largely worried with the noise radiated by means of the automotives, and consist of drive-by noise testing. Several factors influence the overall NVH rating of a vehicle like Engine and powertrain NVH, brief-NVH Phenomena, Aero-Acoustic Noise, Experimental NVH analysis approach, superior NVH simulations, Pedestrian warning sound by Electric Vehicles, NVH of light-weight automotives etc.

Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, harshness is a subjective quality, and is measured either via "jury" evaluations, or with analytical tools that can provide results reflecting human subjective impressions. These latter tools belong to the field known as "psychoacoustics."The sources of noise in a vehicle are many, including the engine, driveline, tire contact patch and road surface, brakes, and wind. Noise from cooling fans, or the HVAC, alternator, and other engine accessories is also fairly common. Many problems are generated as either vibration or noise, transmitted via a variety of paths, and then radiated acoustically into the cabin. These are classified as "structure-borne" noise. Others are generated acoustically and propagated by airborne paths. Structure-borne noise is attenuated by isolation, while airborne noise is reduced by absorption or through the use of barrier materials. Vibrations are sensed at the steering wheel, the seat, armrests, or the floor and pedals. Some problems are sensed visually - such as the vibration of the rear-view mirror or header rail on open-topped cars

  • Engine and powertrain NVH
  • Transient NVH Phenomena
  • Aero-Acoustic Noise
  • Experimental NVH analysis method
  • Advanced NVH simulations
  • Pedestrian warning sound by Electric Vehicles
  • NVH of light-weight vehicles

Related Conference of NVH in Automobiles

NVH in Automobiles Conference Speakers