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Assessment of a chisel noise control for jackhammers and chipping hammers.

Authors
Zechmann-E; Hayden-C
Source
Inter-Noise 2012. The 41st International Congress and Exposition on Noise Control Engineering, August 19-22, 2012, New York, New York. Indianapolis, IN: Institute of Noise Control Engineering, 2012 Aug; 12:10476-10487
Link
NIOSHTIC No.
20041542
Abstract
Quiet steel dampers were cable-tied to jackhammer and chipping hammer chisels in an effort to reduce the ringing noise. Four jackhammer and three chipping hammer chisels were tested with and without the dampers. The attenuation of the resonance frequencies of the chisels were measured by using the surface average of a 2-meter radius 10-microphone array in a hemi-anechoic chamber as the chisels were excited by a force hammer. This paper assesses the amount of noise reduction of the quiet steel dampers in the auditory frequency band of the jackhammer noise emissions.
Keywords
Noise; Noise-control; Sound; Noise-levels; Work-environment; Jack-hammers; Engineering-controls; Control-technology
Contact
Thais C. Morata, Division of Applied Research and Technology, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, OH 45226
Publication Date
20120819
Document Type
Conference/Symposia Proceedings
Email Address
EZechmann@cdc.gov
Fiscal Year
2012
NTIS Accession No.
NTIS Price
ISBN No.
9781627485609
Identifying No.
B10152012
NIOSH Division
DART
Priority Area
Construction; Manufacturing
Source Name
Inter-Noise 2012. The 41st International Congress and Exposition on Noise Control Engineering, August 19-22, 2012, New York, New York.
State
OH; NY
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