Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Feasibility Study on the Vibration Reduction for Hydraulic Breaker by the Dynamic Vibration Absorber

동흡진기를 이용한 유압 브레이커의 진동 감쇠 가능성에 관한 연구

  • Kang, Young Ky (Department of Mechanical Engineering, Gachon University) ;
  • Jang, Ju Seop (Department of Mechanical Engineering, Gachon University)
  • Received : 2021.10.27
  • Accepted : 2021.11.23
  • Published : 2021.12.01
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Abstract

In this paper, the development of a vibration reduction device for hydraulic breakers was studied. Generally, a hydraulic breaker generates shock vibrations while working. When using vibration-proof rubber, shock vibrations are reduced, but without this, shock vibrations are repeatedly generated. Such repeated shock vibrations not only lower the fatigue strength of hydraulic breakers and excavators equipped with them but also increase the fatigue of the workers. This paper proposes the possibility of reducing shock vibration by using a dynamic vibration absorber.

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References

  1. Y. K. Kang, "A Study of Automatical Impact Energy Control Device Analysis for Hydraulic Breaker", Gachon University Master's Thesis, pp.14-15
  2. Y. K. Lee, W. S. Sung and C. S. Song. "The Development of an Analysis Tool and the Performance Analysis of a Hydraulic Breaker System", Journal of the Korean Society for Precision Engineering Vol.17, No.4, pp.189-196, 2000.
  3. S. H. Lee, C. S. Han and C. S. Song. "A study on the Performance Improvement of High Efficiency Hydraulic Breaker", Journal of KSTLE Vol.19, No.2, pp.59-64, 2003.
  4. H. Y. Baek, H. W. Chang and I. J. Lee. "Optimal Design of a Hydraulic Breaker Using Taguchi Method", Journal of The Korean Society of Mechanical Engineers, pp.2033-2038, 2005.
  5. K. S. Kwak and H. W. Chang. "Performance Optimization of a Fully Hydraulic Breaker Using Taguchi Method", Journal of Drive and Control Vol.5, No.3, pp.41-48, 2008.
  6. S. Choi and H. W. Chang. "Performance Improvement of an Integrated-type Fully-Hydraulic Breaker by Sensitivity Analysis", Journal of Drive and Control Vol.6, No.1, pp57-64, 2009.
  7. D. Y. Shin and K. B. Kwon. "A Study on Performance Optimization of a Hydraulic Breaker", Journal of The Korean Society of Mechanical Engineers A, Vol.35, No.6, pp.677-682, 2011. https://doi.org/10.3795/KSME-A.2011.35.6.677
  8. T. J. Ryoo and H. W. Chang. "Performance Optimization of a Gas-Assisted Hydraulic Breaker with Dual Stroke", Journal of Drive and Control Vol.7, No.1, pp58~66, 2010.
  9. Y. K. Kang et al., "A Study on Automatic Impact Force Control Mechanism Design for Hydraulic Breaker", 2017 Spring Conference Journal of KSFC, pp95~100, 2017.
  10. Y. K. Kang, "A Study of Automatical Impact Energy Control Device Analysis for Hydraulic Breaker", Gachon University Master's Thesis, pp. 16-18.
  11. J. H. Lee et. al., "Vibro-acoustic Design and Development of a Low-noise Hydraulic Breaker", Journal of Korean Society for Noise and Vibration Engineering Vol.11 No.7, pp.148-155, 2001.
  12. B. S. Kim et. al., "A Study on the Structure Improvement of Bracket Housing for Structural Noise and Vibration Reduction in Hydraulic Breaker", Journal of the Korean Society for Precision Engineering Vol.23, No.11, pp.108-115, 2006.
  13. B. J. Cho, H. H. Han, and J. S. Koo, "Damping Device for Hydraulic Breaker: Impact and Noise Reduction", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 17, No. 4, pp.113~122, 2018. https://doi.org/10.14775/ksmpe.2018.17.4.113
  14. Y. J. Jung(2020). Korea Patent No.10-2131767.