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A Study on the Structure Improvement of Bracket Housing for Structural Noise and Vibration Reduction in Hydraulic Breaker  

Kim, Bong-Suk (아주대학교 대학원 기계공학과)
Kim, Min-Gi (아주대학교 대학원 기계공학과)
Byun, Dong-Woo (아주대학교 대학원 기계공학과)
Lee, Seong-Min (아주대학교 대학원 기계공학과)
Lee, Soo-Hun (아주대학교 기계공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.11, 2006 , pp. 108-115 More about this Journal
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.
Keywords
Hydraulic breaker; Low-noise housing; Rib effect; Structure-borne noise; Acoustic analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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