Reflective silencer plate: properties

[WIN]

Uni mini projects: to design a reflective silencer plate: properties and calculations involved?

as i am very new to this field and i need to design a simple piece of reflective silencer plate(perforation max 60%)

is there any rule/equation that can help me to decide/calculate:

the position of inlet/outlet (distance between them ect.)

thickness of the silencer

diameter/ arrangement/spacings of the holes for perforation

 

[nilesh_pat]

the surface area of the reflective materialThe position of the inlet and outlet will depend on the environment in which the silencer plate is being used. Generally, the inlet should be located such that it is not too close to any walls or other objects that could interfere with the free flow of air. The outlet should be placed away from any surfaces that could cause back pressure. The thickness of the silencer will depend on its purpose and the size of the space it needs to fit into. It is also important to consider the material that the silencer is made of when calculating the thickness. The diameter, arrangement and spacings of the holes for perforation should be based on the desired sound absorption and attenuation. The holes should be spaced far enough apart to ensure an even distribution of sound energy. Additionally, the holes should be sized and arranged so that they do not interfere with the structural integrity of the silencer. The surface area of the reflective material will depend on the amount of sound energy that needs to be absorbed or reflected. Generally, the surface area should be proportional to the amount of sound energy that needs to be absorbed or reflected.