Design and evaluation of noise control measures for a pneumatic nail gun

Details

• Personal Author:
  Hubbard A ; Jayakumar V ; Louie S ; Schneider G ; Zechmann, Edward L.
• Description:
  This paper describes the identification and noise reduction for major noise sources in a pneumatic nail gun. The objectives were to identify the major sources of noise, implement design changes to reduce the noise, and evaluate the effectiveness of the modifications. All sound power measurements were acquired in accordance with ISO 3744:2010. The sound output of the nail gun could be separated into two events: sound from the piston impact mechanism and sound from the exhaust event. For the piston impact event, the noise control effort concentrated on identifying the vibration transmission paths through the tool body. For the exhaust event, a custom muffler was designed. The impact and exhaust events were treated and analyzed separately. Wrapping foam around the nailer body and ducting the exhaust with a four foot-ten inch long hose, the impact event had a 6.2 dBA sound power reduction. In a separate measurement using the designed muffler and no wrap around the tool, the exhaust event had a 3.9 dBA sound power reduction. [Description provided by NIOSH]
• Subjects:
  Air Pressure Ear Environmental Monitoring Hearing Hearing Loss, Noise-Induced Noise Noise, Occupational Occupational Health Power Plants Safety Sense Organs

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• Keywords:
  Air-pressure Ears Exposure-assessment Exposure-levels Exposure-limits Machine-tools Measurement-equipment Noise-induced-hearing-loss Noise-levels Noise-measurement Permissible-limits Pneumatic-equipment Pneumatic-tools Power-generation Pressure-testing Short-term-exposure Sound

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• Publisher:
  The Institute of Noise Control Engineering of the USA (INCE/USA)
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; Ohio ; OSHA Region 5 ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:20043683
• Citation:
  NOISE-CON 2013. The 28th Conference of the Institute of Noise Control Engineering, August 26 - 28, 2013, Denver, Colorado. Washington, DC: The Institute of Noise Control Engineering of the USA, 2013 Aug; :NC13-47
• Contact Point Address:
  Vignesh Jayakumar, University of Cincinnati, 2600 Clifton Ave, Cincinnati, Ohio 45521
• Email:
  jayakuvh@mail.uc.edu
• Federal Fiscal Year:
  2013
• NORA Priority Area:
  Construction ; Manufacturing
• Peer Reviewed:
  False
• Source Full Name:
  NOISE-CON 2013. The 28th Conference of the Institute of Noise Control Engineering, August 26 - 28, 2013, Denver, Colorado
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:19f986452e271cfb6b2bcc11b67dd74bb6510d7f0b934ea7f8782de5a901999b4438bc475c9d37799d3c0a56472a19f1893d5324298bf601bc3acaea750ef947
• Download URL:
  https://stacks.cdc.gov/view/cdc/195517/cdc_195517_DS1.pdf
• File Type:
  [PDF - 448.48 KB ]