|Document ID (ISN)||107392|
|ISSN - Serial title
||0736-2501 - Noise Control Engineering Journal
|Convention or series no.
||Yantek D.S., Ingram D.K., Matetic R.J.
||In-cab noise reduction on an air-rotary drill rig
||May-June 2007, Vol.55, No.3, p.294-310. Illus. 11 ref.
||A recent investigation revealed that noise levels in cabs of compressed air rotary drill rigs often exceed 85 dB(A). The National Institute for Occupational Safety and Health (NIOSH) studied the in-cab sound levels of one such rig. Preliminary tests were conducted in a controlled environment using accelerometers and microphones with spectral analysis to identify the dominant noise sources. Field tests were then performed in a production environment to evaluate noise controls to reduce in-cab sound levels. It was found that hydraulic noise suppressors reduce the structure-borne noise. Together with enhanced soundproofing, these measures reduced sound levels by as much as 4 dB(A).
||noise level; rotary drilling; mining and quarrying; sound attenuation; drivers cabs
||USA; noise level measurement; sound isolation; compressed air
||D - Periodical articles
|Country / State or Province||USA|
||Mines and quarries
Noise, hearing and vibration
|Broad subject area(s)
Mining and quarrying