Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on the Structure Improvement of Bracket Housing for Structural Noise and Vibration Reduction in Hydraulic Breaker

유압 브레이커의 구조 소음.진동 저감을 위한 브래킷 하우징의 구조 개선에 관한 연구

  • 김봉석 (아주대학교 대학원 기계공학과) ;
  • 김민기 (아주대학교 대학원 기계공학과) ;
  • 변동우 (아주대학교 대학원 기계공학과) ;
  • 이성민 (아주대학교 대학원 기계공학과) ;
  • 이수훈 (아주대학교 기계공학부)
  • Published : 2006.11.01
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Abstract

A hydraulic breaker is widely utilized for many civil engineering areas for the purpose of destroying objects such as rocks, concrete, or road. However, since the high-level noise and vibration by a hydraulic breaker is one of the major sources of environmental noise and recently the environmental regulations on construction equipments are also getting more strengthened, in order to solve such problems, it is certainly necessary to design and develop a hydraulic breaker with low noise and low vibration. This research is to understand the noise characteristics through the noise test and acoustic analysis of the bracket housing in a hydraulic breaker and to identify the element part to be modified based on the result of the element contribution analysis. An improved breaker model including X-typed rib shows the result of low-noise level within target frequency band compared with a commercial breaker model.

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References

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