[Construction model] Rubicon
[Construction material] Light weight Damping pad 2mm / High gravity damping 3mm / Low frequency king sound insulation / Polyurethane sound absorbing blanket 15mm
[Construction site] Four doors / chassis / trunk/ Hood
four-door soundproofing
Four doors is one of the main ways of wind noise intrusion into the cockpit, off-road vehicle body large center of gravity, large windward area, body clearance, wind noise intrusion impact will also become larger. By improving the tightness of the door and suppressing vibration, it can effectively reduce the intrusion of wind noise and noise caused by resonance.
The first layer adopts the construction method of Light weight Damping pad 2mm and High gravity damping 3mm, and the construction method is divided and fully attached, which inhibits the vibration of sheet metal of the door panel, strengthens the strength of sheet metal, and alleviates the noise transmission caused by vibration.
The second layer uses Light weight Damping pad 2mm to seal irregular places such as holes and gaps, forming a solid sealing space with the first layer of vibration damping, blocking the transmission of wind and noise inside the box. At the same time, the lightweight material can reduce the weight while maintaining excellent damping effect.
The third layer of interior Damping also adopts Light weight Damping pad 2mm to suppress the abnormal sound of the plastic plate of interior trim and reduce the noise resonance.
chassis and trunk Soundproof
Chassis noise is mainly from road noise, exhaust pipe noise and other low-frequency noise transmitted to the cockpit through the chassis sheet metal.
As can be seen from the figure, there is only a thin damping layer on the chassis of the original car and the rear box.
Before the construction of the car, it is necessary to clean the construction location, remove excess dust and gravel, increase the adhesion between the vibration damping plate and the sheet metal, and improve the damping effect.
The first layer of vibration reduction adopts the construction method of Light weight Damping pad 2mm and High gravity damping 3mm thickness combination and block full paste, which improves the effect and reduces the impact on fuel consumption. After construction, it can effectively suppress the vibration of chassis and tailbox, reduce the resonance noise caused by road noise, power system, and tailbox cavity vibration, strengthen the strength of sheet metal, and reduce the generation and transmission of noise.
The second layer of sound insulation adopts Low frequency king sound insulation composite material, which has the characteristics of vibration reduction and sound insulation, effectively strengthening the suppression of sheet metal vibration, blocking the transmission of low-frequency noise to the cockpit, reducing the impact of noise on the human body, while improving the sound quality of the original car audio, listening to the song more exciting.
