Noise reduction on a jumbo drill using panel contribution analysis and scale modeling

D. W. Herrin, Gong Cheng, Steven C. Campbell, J. M. Stencel

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

During drilling operations, jumbo drill noise levels are in excess of 95 dBA in mining environments. Panel contribution analysis was used to determine which components contribute the most at two receiver positions. The primary contributors to the high noise levels were the drifter or gearbox, and a hydraulic pump in a steel enclosure just behind the operator. Panel contribution analysis combined with scale modeling revealed that the pump enclosure was the primary source of noise. Lagging was added and the noise at the operator ear was reduced by 4.3 dBA constituting a first step towards reducing sound pressure levels below 90 dBA. The results demonstrated the feasibility of using panel contribution analysis combined with scale modeling to identify noise controls and their impact even if a large anechoic chamber is not available. Key.

Original languageEnglish
StatePublished - 2017
Event46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017 - Hong Kong, China
Duration: Aug 27 2017Aug 30 2017

Conference

Conference46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017
Country/TerritoryChina
CityHong Kong
Period8/27/178/30/17

Keywords

  • Mining equipment
  • Words: panel contribution analysis

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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