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가스보조식 이중행정 유압브레이커의 민감도 해석에 의한 성능 향상
류택직(Taek Jik Ryoo),장효환(Hyo Whan Chang) 유공압건설기계학회 2009 유공압건설기계학회 학술대회논문집 Vol.2009 No.11
A gas-assisted hydraulic breaker uses both hydraulic and pneumatic energies and an appropriate balance between two energies 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 and nearly optimized to maximize the output power as well as the impact energy for long and short strokes. As the results, the impact energy and output power are increased significantly compared with the current design. The dynamic characteristic of the piston displacement is also improved by the design change.
류택직(Taek Jik Ryoo),장효환(Hyo Whan Chang) 유공압건설기계학회 2010 드라이브·컨트롤 Vol.7 No.1
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.