|MPM panels can be used whenever the purpose is to damp structure-borne noise. It’s noise-damping capacity is practically independent of the thickness of the system, and MPM panels can therefore be chosen solely with regard to the strength of the structure.
MPM panels are used in machinery such as vibrators and chutes, the noise level of which can be reduced by between 10 and 20 dB(A).
Noise control hoods of MPM panels for machine tools, for example, can be mounted directly on the machine without insulating spacers. A noise control hood is usually made up of a single wall with sound-absorbent material such as foam plastic or mineral wool on the inside.
In certain cases the use of double-wall constructions may be justified. Two MPM panels can then be connected with strips or bolts without significantly detracting from their sound-insulating properties. The space between the panels should be filled with mineral wool, foam plastic or some other type of sound absorbent material.
Effective sealing to prevent sound leakage is extremely important when insulating against noise, since even very small gaps may significantly affect the result.
|Fig. 5 Octave band analysis of work operations for a sheet steel chute and a chute of MPM panels .04/.004/.08. The total sound level is reduced by around 14dB(A).
Reduction in diesel engine noise achieved by fitting Paragon’s MPM close fitting side shields.
Noiseless steel can make a huge difference in noise control for your application: