ILO Home
Go to the home page
Site map | Contact us Français | Español

CISDOC database

Document ID (ISN)40684
CIS number 83-1582
ISSN - Serial title Cahiers de notes documentaires - Sécurité et hygiène du travail
Year 1983
Convention or series no.
Author(s) Jacques J., Sueur J., Cafaxe M., Robinet D.
Title Noise reduction in vacuum wood-chip collectors - Outline of a method for noise reduction at source
Original title Réduction du bruit des aspirateurs de copeaux - Ebauche d'une méthodologie pour la réduction du bruit à la source [in French]
Bibliographic information 3rd quarter 1983, No.112, Note No.1435-112-83, p.345-351. Illus.
Abstract Sound-control features provided by the manufacturers of 3 vacuum wood-chip collectors were inadequate. Detailed analysis of the sources and propagation pathways of noise in one such device showed that the fan was the major source of noise; noise travelled primarily through the air channels of the device and radiated from the walls of the channels. Vibration of the frame and sheet-metal work of the device, air-flow turbulence and the fan motor were other sources of noise. Noise reductions of 6.5-9.5dBw(A) were obtained by such simple means as enclosing the filter bags of the device. Description of the sound analysis methods used.
Descriptors (primary) woodworking machines; noise; woodworking industry; noise control; exhaust devices; chips
Descriptors (secondary) description of technique; acoustic enclosure
Document type D - Periodical articles
Subject(s) Noise, hearing and vibration
Broad subject area(s)
Browse category(ies) Ventilation
Woodworking industry
Lumber and the woodworking industry
Noise