STEEL LAMINATE CUTS STRUCTURE-BORNE NOISE

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STEEL LAMINATE CUTS STRUCTURE-BORNE NOISE
31 October 2004 - Acousteel

Acousteel offers an effective and straight forward way to remove unwanted noise and vibration from any steel or aluminium sheets, panels, pressings etc which have inherent noise problems.

Acousteel is constructed like a sandwich with a thin (0.05mm) energy-absorbing layer of viscoelastic polymer in the centre of two metal skins. The result of this is an audibly sound dead steel panel.

Acousteel works by using constrained layer damping. This basically absorbs sound and/or vibration energy by the two skins of material moving relative to one another. This movement creates sheer strain, which in turn is dissipated as negligible heat. Incredibly, this creates up to a 30dB(A) reduction in sound. Acousteel's benefit to airborne sound is not significantly different to standard steel in usual frequency ranges of 125Hz to 4kHz. Airborne sound is reduced by adding mass and the mass of Acousteel is no different to standard steel of the same gauge.

However, below 125Hz and above 4kHz these frequencies resonate structures like the heavy bass from a professional hifi system. This is airborne transmission and this is where Acousteel is a huge benefit.

Acousteel manufactures two main products both of which are derivatives of sound deadened/dead zintec, metal, aluminium and steel. Acousteel laminated panel (sound deadened steel/metal) is a sound dead CLD panel used in acoustic doors, heating and ventilating equipment and top end hifi equipment as manufactured by Arcam.

Acou-stik acoustic damper (Aludamp/Alidamp) is an adhesive steel/aluminium damper for use where the Acousteel panel is inhibited through engineering etc. This retrofit damper can be used where ever structure-borne noise and manufacture is an issue.

Materials can be mixed, for example a veneer of Stainless Steel can be bonded to a thicker less expensive mild steel substrate, giving both an acoustic solution and cost effective alternative to monolithic Stainless sheet, when anticorrosive properties are required on only one face of the panel.

Acousteel will reduce unwanted noise and vibration by over 1000%
Acousteel is cost effective compared to traditional solutions
Acousteel is invisible simply replacing existing parts

http://www.acousteel.com

About: Acousteel
Acousteel Ltd works in conjunction with the Industrial Noise and Vibration Centre (INVC) based in London, United Kingdom. Its expertise is in solving acoustic and vibration problems using engineering techniques to resolve the problem at the source rather than specify expensive and often inadequate solutions such as enclosures.

This independent consultancy, headed by Peter Wilson, is a unique acoustic consultancy, as their approach to noise control is to locate the source of the noise and vibration and then to design an engineered solution, which is always the most elegant and cost-effective.

Independent advice is available to customers and prospective customers free of charge. There is no obligation to purchase Acousteel if it is not the answer for your application. In fact, a number of solutions will be suggested.

Acousteel Ltd is a British company manufacturing Sound Deadened Steel (SDS) for various acoustic solutions all over the world. Acousteel Ltd is unique in the fact that it is the only company devoted to this highly innovative acoustic product. Acousteel undertakes a constant program of product development, helping to solve the problems of the black art of acoustics.

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  • For October 2004
  • From Acousteel
  • For Sound-deadened steels