• Title/Summary/Keyword: 소음전달

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Analysis of compressor muffler using transmissibility (전달률을 이용한 압축기용 소음기 해석)

  • 신강식;김상명;조용훈
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2003.05a
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    • pp.713-718
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    • 2003

  • The common practice to reduce the compressor noise is installing a muffler. The noise reduction performance of the muffler is the most critical one for the total noise characteristics of the compressor. In this paper, a simple impedance approach using the concept of transmissibility is employed for the acoustic analysis of the muffler, It is known that transmissibility is directly related to insertion loss, and thus transmissibility can Indicate the correct performance of the muffler. The analysis result is supported by a Finite Element Model. In addition, some experiments conducted also show that the transmissibility is mildly related to the measured sound pressure outside the compressor.

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Identify Hypoid Gear Whine Noise for Deflection Test and Transmission Error Measurement (하이포이드 기어의 소음원인규명을 위한 디플렉션 테스트와 전달오차 측정에 대한 연구)

  • Choi, Byung-Jae;Oh, Jae-Eung;Park, Sang-Gil
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.19 no.2
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    • pp.127-137
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    • 2009

  • Hypoid gears are widely used in rear drive and 4WD vehicle axles. Investigation of their sensitivity to deflections is one of the most important aspects of their design and optimization procedures. The deflection test is performed in the actual gear mounting using completely processed gear. This test should cover the full operating range of gear loads from no load to peak load. Under peak load the contact pattern should extend to the tooth boundaries without showing a concentration of the contact pattern at any point on the tooth surface. Transmission error is tested on an axle assembly triaxial real car load condition.

  • https://doi.org/10.5050/KSNVN.2009.19.2.127 인용 PDF KSCI