The sound barrier forming machine has the characteristics of fast production speed, less labor required, exquisite workmanship, and no scratches on the sound-absorbing surface.
Sound barriers, mainly used for sound insulation and noise reduction of roads, highways, elevated composite roads and other noise sources. It is divided into reflective sound barriers that reflect pure sound and composite sound barriers that combine sound absorption and sound insulation.
application
Noise reduction principle of road noise barriers: According to the principle of geometric acoustics, sound travels in a straight line outdoors. If a wall or other object with a certain amount of sound insulation is inserted between the sound source and the receiving point, it will block the sound transmission path. If the sound source cannot be seen at the receiving location, i.e. direct sound from the sound source cannot be received, the sound level at the receiving point will be greatly reduced.
After the sound barrier is inserted between the sound source and the receiving point, the difference between the sound pressure level at the receiving point and the sound pressure level without the sound barrier is called the insertion loss of the sound barrier.
When a sound wave from a noise source encounters a sound barrier, it will travel along three paths: partial diffraction from the top of the sound barrier to the sound receiving point; part of the sound barrier penetrating the sound barrier to the sound receiving point; part of the sound barrier Reflection on the wall. The insertion loss of the sound barrier mainly depends on the sound energy distribution of the sound waves emitted by the sound source along these three paths.