한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제22권5호
  • /
  • Pages.437-443
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  • 2012
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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냉장고용 왕복동식 압축기의 가진력 규명 및 방사소음 예측

Force Identification and Sound Prediction of a Reciprocating Compressor for a Refrigerator

  • 김상태 (부산대학교 대학원 기계공학부) ;
  • 전경진 (부산대학교 대학원 기계공학부) ;
  • 정의봉 (부산대학교 기계공학부)
  • 투고 : 2012.02.24
  • 심사 : 2012.04.18
  • 발행 : 2012.05.20
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초록

In this paper, the hybrid method to identify the exciting forces and radiated noise generated from the reciprocating compressor was presented. In order to identify the exciting force, both the acceleration data measured at the compressor shell and numerical finite element model for the full set of compressor were used simultaneously. Applying the identified exciting forces to the numerical model, the velocity responses of all nodes at the shell were predicted. Finally the radiated noises from the vibrating shell were predicted by using the direct boundary element acoustic analysis. For precise numerical modeling, the stiffness of rubber mounts and body springs were identified experimentally from the natural frequencies measured by impact testing. The error of over-all sound pressure level between predicted noise and measured noise was about 2.9 dB.

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참고문헌

  1. Jung, K. I., Kim, Y. H., Seo, M. Y., Kim, S. G. and Lee, J. G., 2001, A Strategy of Refrigerator Noise Control by Using Subjective Assessment, Proceedings of the KSNVE Annual Autumn Conference, pp. 191-196.
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  10. LMS, LMS Virtual.Lab REV9 NVH Standard Training.

피인용 문헌

  1. Analysis and Estimation of Vibration Characteristics of a Reciprocal Compressor with Variable Rotating Speed vol.26, pp.3, 2016, https://doi.org/10.5050/KSNVE.2016.26.3.290
  2. Estimation of Rotating Motions of Operating Parts in Variable Velocity Reciprocal Compressors vol.28, pp.4, 2018, https://doi.org/10.5050/KSNVE.2018.28.4.468