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Document ID (ISN)61228
CIS number 93-2037
ISSN - Serial title Cahiers de notes documentaires - Sécurité et hygiène du travail
Year 1993
Convention or series no.
Author(s) Delhoume P., Vercammen M., Heringa P., Lovat G., Thomé J.P., Arbey H.S.
Title Analysis of noise generation mechanism: A tool for noise reduction at source - The case of gear noise
Original title L'analyse des mécanismes de génération de bruit: un outil pour la réduction du bruit à la source. Cas des engrenages [in French]
Bibliographic information 2nd Quarter 1993, No.151, Note No.1926-151-93, p.279-292. Illus. 24 ref.
Abstract The new European directives require machine manufacturers to reduce the noise generated by their machines to the lowest level possible, in particular by action at source. For each machine part this requires proper knowledge of noise generation mechanisms, and assessment of expected noise levels and an estimation of the contribution of the main parameters to noise emission. This data sheet covers noise emission by machine gears. It demonstrates the variety of different noise generation factors (cog contact and friction, load variation) and how the noise is transmitted through the air or mechanically from the source (the cog contact point) to the radiating surfaces (housing), illustrating the basic mechanisms often found in other types of machinery. The data sheet combines comprehension of the different mechanisms with a number of ways of reducing acoustic emission: geometric parameters, tribological factors, degrees of quality, operating conditions, etc., and clarifies the notions of action at source.
Descriptors (primary) gear transmissions; noise control; noise; France
Descriptors (secondary) description of equipment; European Communities; noise measurement; data sheet; sound spectrum analysis; design of equipment; noise level measurement
Document type F - Information notes, codes of practice, standards
Country / State or ProvinceFrance
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Noise