ACTIVE IMPACT CONTROL SYSTEM DESIGN WITH A HYDRAULIC DAMPER |
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| Authors: | D.H. KIMJ.W. PARK G.S. LEEK.I. LEE |
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| Affiliation: | a Department of Mechanical Design, Seoul National University of Technology, 172 Gongneung-dong, Nowon-gu, Seoul, 139-743, South Koreaf1dhkim@plaza1.snut.ac.krf1b Department of Mechanical Design & Production Engineering, Graduate School, Seoul National University, San 56-1, Sinlim-dong, Kwanak-gu, Seoul, 151-742, South Koreac Agency for Defense Development, Juan Industrial Complex 650, Juan 5-dong, Nan-gu, Incheon-si, South Koread School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Koreaf2lki@plaza.snu.ac.krf2 |
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| Abstract: | We propose a new active impact control (or absorber) system that is able to respond to a highly rapid impact and a large flow rate. The system has advantage over a passive system regarding a feasible pressure and displacement regulation. The impact control system constructs both internal and external dampers, that is its orifice is placed inside and outside the hydraulic cylinder. The designed system has a set of logic valves, which respond rapidly to an external impact and are capable of discharging an instant excessive hydraulic flow, and a servo valve to control the pilot chamber of the logic valve. The impact control system is designed and fabricated based on an appropriate mathematical modelling and its dynamic analysis, and on various control performances. The control performance is verified by simulations and experiments. |
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