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Reducing the Operator Sound Level of a Mining Service Vehicle - a Demonstration Project.

Authors
Huggins-GG; Patterson-WN
Source
NTIS: PB/265-037 Available for Reference At Bureau Libraries :75 pages
Link
NIOSHTIC No.
10000188
Abstract
A demonstration project has been completed to reduce the operator sound level of an underground service vehicle, a personnel dispatch wagon, to 90 db(a) or less. The program objective was to implement quieting recommendations made on an earlier study for the federal Bureau of Mines on diesel-powered mine equipment. The manufacturer and mine to which the vehicle was going actively participated in the program to ensure a product that was not only quiet, but useful. The key element of the quieting package is an engine partial enclosure, which, with several complementary noise control components, reduced the operator sound level 14 db, from 101 db(a). The vehicle underwent a 4-month trial period, with no degradation in the quieting package. Mine personnel reported no maintenance difficulties, and were enthusiastic about the dispatch.
Publication Date
19750101
Document Type
CP; Final Contract Report;
Fiscal Year
1975
NTIS Accession No.
PB-265037
NTIS Price
A05
Identifying No.
OFR 47-77
NIOSH Division
PRC;
Source Name
NTIS: PB/265-037 Available for Reference At Bureau Libraries
Performing Organization
Bolt, Beranek and Newman Inc
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