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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Estimation of Excitation Force and Noise of Drum Washing Machine at Dehydration Condition using Phase Reference Spectrum

위상 기준 스펙트럼을 이용한 드럼 세탁기 탈수 행정시의 가진력 및 방사소음 예측

  • Received : 2013.03.20
  • Accepted : 2013.06.24
  • Published : 2013.07.20
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Abstract

Accurate prediction of the radiated noise is important to reduce the noise of the washing machine. It is also necessary to predict the excitation force accurately because excitation force can induce noise. In order to predict the excitation force acting on the washing machine, this paper conducts source identification method by use of phase reference spectrum. In this method, the transfer function between the cabinet and the motor through FEM and the measured response from the surface of the cabinet is used. The analysis of the radiation noise from the identified exciting force has been investigated. The comparison between the predicted SPL and the measured SPL at 1m apart from the front side of the washing machine showed good tendency.

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References

  1. Kim, H. S. and Oh, J. E., 2007, The Analysis of Noise Contribution about Drum Washer under Dehydrating Condition Using Multi-dimensional Spectral Analysis, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 17, No. 11, pp. 1056-1063. https://doi.org/10.5050/KSNVN.2007.17.11.1056
  2. Kang, K. H. and Oh, J. E., 2008, The Analysis of Structure-borne Noise due to Cabinet Vibration from Operational Drum Type Washing Machine Using TPA, Proceedings of the KIEE Annual Autumn Conference, pp. 295-296.
  3. Jung, J. E. and Oh, J. E., 2011, Sound Quality Evaluation for Laundry Noise by a Virtual Laundry Noise Considering the Effect of Various Noise Sources in a Drum Washing Machine, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 22, No. 6, pp. 564-573. https://doi.org/10.5050/KSNVE.2012.22.6.564
  4. Jung, B. K. and Jeong, W. B., 2011, Estimation of Vibration Source and Sound Radiation of a Refrigerator Fan by using Measured Acceleration Signals, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 21, No. 9, pp. 834-841. https://doi.org/10.5050/KSNVE.2011.21.9.834
  5. Kim, T. H. and Jeong, W. B., 2012, Experimental Investigation of Excitation Force using Phase Reference Spectrum, Proceedings of the KIEE Annual Autumn Conference, pp. 651-652.
  6. LMS, LMS Virtual.Lab Transfer Path Analysis.

Cited by

  1. Estimation of Vibration Field of a Cylindrical Structure Derived by Optimal Sensor Placement Methods vol.24, pp.5, 2014, https://doi.org/10.5050/KSNVE.2014.24.5.381
  2. Cabinet Design for Vibration Reduction of a Drum Type Washing Machine vol.33, pp.9, 2016, https://doi.org/10.7736/KSPE.2016.33.9.731
  3. An Experimental Study on the Reduction of Dehydration Noise of a Drum-type Washing Machine vol.28, pp.4, 2018, https://doi.org/10.5050/KSNVE.2018.28.4.451