Assessment of a chisel noise control for jackhammers and chipping hammers.
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
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.
Noise; Noise-control; Sound; Noise-levels; Work-environment; Jack-hammers; Engineering-controls; Control-technology
Thais C. Morata, Division of Applied Research and Technology, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, OH 45226
Inter-Noise 2012. The 41st International Congress and Exposition on Noise Control Engineering, August 19-22, 2012, New York, New York.