Development of a validated finite element model of a longwall cutting drum.
Camargo-HE; Yantek-DS; Smith-AK
Inter-Noise 2012. The 41st International Congress and Exposition on Noise Control Engineering, August 19-22, 2012, New York, New York. West Lafayette, IN: International Institute of Noise Control Engineering, 2012 Aug; 9:7650-7661
One of the most pervasive diseases in the mining industry is noise-induced hearing loss (NIHL). Exposure of miners to noise levels above the permissible exposure limit (PEL) results in hearing loss of approximately 80% of coal miners by retirement age. In this context, the Office of Mine Safety and Health Research (OMSHR) of the National Institute for Occupational Safety and Health (NIOSH) is conducting research to develop engineering noise controls for longwall mining systems, which account for half of the national underground coal production. From field measurements, it was determined that the dominant sound-radiating components at the shearer of a longwall system are the two cutting drums used to remove coal from the face of the mine. Due to the dimensions and complexity of longwall systems, the approach used for this project consists of developing finite element (FE) models of the dominant sound-radiating components. These FE models will be the basis for predicting the radiated sound and the development of engineering noise controls. This paper presents the development of a finite element model of the cutting drum which, in order to be an accurate representation of the actual drum, was validated using data from an experimental modal analysis test.
Mining-industry; Noise-induced-hearing-loss; Noise-levels; Noise-exposure; Noise; Hearing-loss; Hearing-impairment; Hearing; Exposure-levels; Longwall-mining; Coal-mining; Cutting-tools; Sound; Noise-control
National Institute for Occupational Safety and Health 626 Cochrans Mill Rd. Pittsburgh, PA 15236
Inter-Noise 2012. The 41st International Congress and Exposition on Noise Control Engineering, August 19-22, 2012, New York, New York