Sound Proofing / Insulation: Description and Operation
Low Vibration and Low Noise Body1. General
Effective application of vibration damping and noise suppressant materials reduces engine, wind and road noises.
2. Sound Absorbing and Vibration Damping Materials
^ Foamed urethane sponge and foamed sealing material are applied onto the roof side rail and pillars to reduce wind and road noises.
^ A large-size dash inner insulator, dash outer insulator, and hood insulator are used to reduce engine and road noises to improve quietness inside cabin.
^ The asphalt sheet has been optimized entirely, in terms of material, thickness, and allocation, in order to reduce the droning sound and road noise.
3. Reducing Wind Noise
^ A foam material is optimally allocated inside the body side members, pillars, in order to reduce the wind noise created by air turbulence.
^ CSE (Curved Seal Extrusion) bifacial molding is used around the windshield glass to minimize the offset between the windshield glass and the roof. This reduces air turbulence and wind noise (A - A cross section).
^ The offset between the front pillars and the windshield glass has been optimized to minimize air turbulence, thereby reducing the wind noise (B - B cross section).
^ Through a modification of the cowl louver shape, the course of airflow across the hood has been directed upward, and this prevents wind from interfering with the wipers. Therefore, air turbulence has been minimized, reducing the wind noise (C - C cross section).