How to Reduce Interior Car Noise?
1 Answers
Methods to reduce interior car noise: 1. Install door and inner sealing strips to enhance sealing resistance and minimize noise caused by air and vehicle friction; 2. Use appropriate engine oil and gasoline, add soundproofing materials to the engine hood, and insulate the firewall to reduce engine noise; 3. Apply soundproofing materials to doors, door edges, wheel arches, fenders, and chassis to minimize noise caused by tires. Sources of car noise: 1. Engine noise: Generated during normal engine operation and enters the cabin if the sealing is poor; 2. Tire noise: Hard tire materials create friction and impact noise with the road surface, which resonates with vibrations from mudguards and fenders, amplifying the noise inside the cabin; 3. Wind noise: Produced by the friction and collision between the car body and airflow during driving; 4. Mechanical aging: Loose or aged mechanical components generate vibration noise during operation.