Development of a Quiet Rock Drill. Volume 2 – Sources of Drill Rod Noise

Details

• Personal Author:
  Dutta PK ; Hawkes I ; Wright DD
• Description:
  This report describes how longitudinal and bending stress waves in percussive drill rods generate noise. It is shown that in practical drills the largest noise source is the bending waves, which are mainly generated because of imperfections in the piston, chuck, and drill rod alinement. Equations are presented that enable the noise spectra generated by the bending and longitudinal waves to be precisely predicted. Means for reducing the amplitude of the bending waves are discussed. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Document Type:
  Text
• Genre:
  Conference Publications ; Final Contract Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-77
• NIOSHTIC Number:
  nn:10000182
• NTIS Accession Number:
  PB-289716
• Citation:
  NTIS: PB/289-716 Available for Reference At Bureau Libraries; :1-77
• Federal Fiscal Year:
  1977
• Performing Organization:
  Ivor Hawkes Associates
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB/289-716 Available for Reference At Bureau Libraries
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:133145ca8ce39ef7b4e4f5a614c0e4544ece0d23fd18f8e731c4e15355b54e98135dcae27392902f64067ee17d21666da1068917d5157adc192d704d7feb4074
• Download URL:
  https://stacks.cdc.gov/view/cdc/206435/cdc_206435_DS1.pdf
• File Type:
  [PDF - 4.53 MB ]