Transcription of 5 NOISE SOURCES - WHO
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5 NOISE SOURCES - WHO
5 NOISE SOURCESP rofessor Samir GergesGustav A. Sehrndt* and Wolfgang PartheyFederal University of Santa CatarinaFederal Institute for OccupationalMechanical Engineering Department Safety and HealthNoise and Vibration LaboratoryFriedrich-Henkel-Weg - Florian polis - SC44149 INTRODUCTIONI ndustrial machinery and processes are composed of various NOISE SOURCES such as rotors, stators,gears, fans, vibrating panels, turbulent fluid flow, impact processes, electrical machines, internalcombustion engines etc. The mechanisms of NOISE generation depend on the particularly noisyoperations and equipment including crushing, riveting, blasting (quarries and mines), shake-out(foundries), punch presses, drop forges, drilling, lathes, pneumatic equipment ( jack hammers,chipping hammers, etc.), tumbling barrels, plasma jets, cutting torches, sandblasting, electricfurnaces, boiler making, machine tools for forming, dividing and metal cutting, such as punching,pressing and shearing, lathes, milling machines and grinders, as well as textile machines, beveragefilling machines and print machines, pumps and compressors, drive units, hand-guided machines,self-propelled working machines, in-plant conveying systems and transport vehicles.
sources can be attributed to machine operations, conveying systems, control and regulation devices and turbo machines, while 20 % are accounted for by manual working and conveying operations. About three quarters of the machine operations can be attributed to machine tools (Damberg, Foss 1982).
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