How to improve the sound insulation effect of Gasoline Tricycle

In order to provide a good operating environment for the driver in the cab of Gasoline Tricycle, some sound insulation measures are usually taken. However, these measures are not very effective sometimes. So is there any good way to improve its sound insulation effect?

1. You can lay carpets on it, which is mainly to isolate the noise transmitted from the bottom plate. There are many materials to choose from, including PV film + felt composite materials, PV film + foaming materials, carbon fiber + cotton felt composite materials, etc. Experiments have shown that increasing the surface density of the lower layer of felt or cotton felt can effectively isolate the noise transmitted from the floor holes.
2. Enhance the sealing of its body, check whether the sealing system structure design is reasonable for the poor sealing of the doors and windows, whether the sealing strip assembly is biased, and strengthen the use of sealing materials for the wiring harness holes and the joystick holes. In addition, it is necessary to ensure that the assembly and welding accuracy of the sheet metal parts meet the requirements, and the use of sealing coating glue should be in place.
3. The low-frequency sound insulation performance of the panel is related to the stiffness and damping of the material. Therefore, while meeting the requirements of vehicle body weight control, the thickness of the door and window glass can be appropriately increased, and the thickness of the wall panels (mainly the bottom panel and the front panel) at key positions of the vehicle body can be optimized to effectively improve the overall sound insulation performance of the vehicle body.