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김진수(Jinsoo Kim),이승목(Seungmock Lee),하종훈(Jonghun Ha),이장우(Jangwoo Lee),하삼철(Samchul Ha) 한국소음진동공학회 2010 한국소음진동공학회 학술대회논문집 Vol.2010 No.10
The main noise source of the rotary compressor for air conditioner was analyzed by using the measurement of sound intensity, modal analysis and operational deflection shape(ODS) analysis. In this study, the key noise source of rotary compressor was an accumulator, and noise was sharply increased due to the accumulator’s resonance which has a big contribution to the noise. To reduce the excessive noise generated from accumulator, structural modification through ODS analysis were applied. Its validation was conducted by the measurement of noise and vibration on the accumulator’s surface. The total noise was significantly reduced by 4.2dB(A).