CONTROL OF NOISE
Engineer’s Advice Noise control could be a big and expensive job because it could mean changing machines, involving a high cost, Mr I. J, H. Kelly, an engineer, told the symposium. Alternatives were the absorption of airborne sound by sound-absorbing materials, or partitions to confine the sound. The source should be first dealt with in attempts to reduce noise, Mr Kelly said. Redesigning or modifying a unit—-like replacing a fan with one of better design—could bring about good results.
Resilient mountings could reduce and in some cases eliminate noise transmitted through a building by a vibrating machine. In the past a common practice was to line the internal surfaces of a room in which the machine was situated. This was useless, Mr Kelly said.
His advice was first to. analyse the noise, then to eliminate or reduce it at its source. If it was impossible, it should be confined to an area as small as possible.
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Bibliographic details
Press, Volume CI, Issue 29901, 15 August 1962, Page 6
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159CONTROL OF NOISE Press, Volume CI, Issue 29901, 15 August 1962, Page 6
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