What Are the Sources of Car Noise?
1 Answers
Car noise primarily originates from engine noise, road noise, and tire noise. Engine Noise: The vehicle's engine is a source of noise, and the noise it produces varies with engine speed (mainly generated and transmitted through the front fenders, hood, firewall, and exhaust pipe). Road Noise: Road noise is formed when the vehicle is driven at high speed, caused by wind cutting in and vibrations from the chassis. Additionally, sand and gravel impacting the chassis also generate noise, which is the main source of road noise (mainly generated and transmitted through the four doors, trunk, front fenders, and front wheel arches). Tire Noise: Tire noise is produced by the friction between the tires and the road surface when the vehicle is driven at high speed. The level of tire noise depends on road and vehicle conditions—the worse the road condition, the louder the tire noise. Moreover, there is a significant difference in tire noise between asphalt and concrete roads (mainly generated and transmitted through the four doors, trunk, front fenders, and front wheel arches).