Interior Noise of Vehicle


Interior Noise of Vehicle

One of the most decisive selling points for passenger car is the level and quality of interior noise. Like exterior noise engine is the main source of vehicle interior noise. It gets transmitted inside the vehicle by,
1) Direct infiltration:
2) Improper sealing , Holes in the lower dash panel
3) Structural vibrations
4) Engine mounts, loops in the exhaust system 
5) Drive shafts, support bearing, rear axle drive shaft


 Noise Contributions from Various Systems


 # Fan and Radiator Assembly –10%
# Drive Line –14%
# Engine -21%
# Intake System-14%
# Exhaust System –32%
# Structural Components- 10% 
# Miscelleneous-3%

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