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고경은(Ko, Kyung-Eun),김영현(Kim, Young-Hyun),주원호(Joo, Won-Ho),김동해(Kim, Dong-Hae),배종국(Bae, Jong-Gug),심재구(Shim, Tae-Koo),강정원(Kang, Jeong-Weon),손득균(Son, Deuk-Kyun),김춘오(Kim, Choon-O) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.12
The radiated noise of the excavator is composed of the various noise sources such as the diesel engine, cooling fan and hydraulic system, so the noise reduction for each noise source is required. In this study, the source contribution analysis for these principal noise sources is performed by using the noise source removal method. And to reduce the noise due to each one, the various experiments and analyses are studied. On the basis of these results, the proper noise reduction countermeasures are derived to develop the excavator satisfied the $2^{nd}$ noise regulation of EU.