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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Noise Reduction of a Hydraulic Breaker by Change of a Chisel

치즐 변경을 통한 유압 브레이커의 소음 저감

  • Published : 2010.02.20
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Abstract

Hydraulic breakers are widely used for mining and construction engineering area but make serious noise problem. The noise is generated between a chisel and a piston when they are hit by a fluid power. This study proposed noise reduction method by the change of a chisel in a hydraulic breaker. In the new design, a different material is inserted inside of a chisel. The proposed design is analyzed and simulated by the use of a numerical method. A chisel by the new design was installed in a hydraulic breaker and experimented for sound pressure level. As a result, the noise of hydraulic breaker can be reduced more than 4 dB by simply changing a chisel.

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References

  1. Announcement of Ministry of Environment, 2007, "Measurement Method of Construction Machinery Noise," 2007-113.
  2. Kim, J. T., Jun, O. S., Yun, B. Y. and Lee, Y. H., 1995, "Low Noise Breaker," Proceedings of the KSNVE Annual Autumn Conference, pp. 213-216.
  3. Ih, J. G., Chae, K. S., Lee, J. H., Park, S. H., Ha, T. G. and Lim, J. H., 1999, "Development of Low-noise Hydraulic Breaker," Proceedings of the KSME Annual Autumn Conference, pp. 779-784.
  4. Lee, J. H., Ih, J. G., Park, S. H., Ha, T. G. and Lim, J. H., 2001, "Vibro-acoustic Design and Development of a Low-noise Hydraulic Breaker," Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 11, No. 5, pp. 148-155.

Cited by

  1. Damping Device for Hydraulic Breaker: Impact and Noise Reduction vol.17, pp.4, 2018, https://doi.org/10.14775/ksmpe.2018.17.4.113