Transactions of The Korea Fluid Power Systems Society (유공압시스템학회논문집)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Performance Optimization of a Gas-Assisted Hydraulic Breaker with Dual Stroke

가스보조식 이중행정 유압브레이커의 성능 최적화

  • 류택직 (고려대학교 대학원 기계공학과) ;
  • 장효환 (고려대학교 기계공학부)
  • Received : 2009.12.28
  • Published : 2010.03.01
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Abstract

A gas-assisted hydraulic breaker uses both hydraulic and pneumatic energies and the appropriate balance between them mostly effects its performance. Mathematical modeling of the breaker is established and verified by experiment. Through sensitivity analysis using AMESim, the key design parameters are selected, which mostly affect the performance of the breaker. Taguchi method is used to optimize the key design parameters to maximize the output power for long and short strokes through simulation. As the result, the output power as well as the impact energy are increased significantly compared with the existing design. The pressure pulsation in the supply line is reduced to a tolerable level and the dynamic characteristics of the piston displacement is also improved by the optimization.

Keywords

References

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