http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김효준(HyoJun Kim),양현석(HyonSeok Yang),박영필(YoungPil Park),류봉조(BongJo Ryu),최의중(EuiJung Choe) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
In this study, the optimal dynamic isolation system for gas operated gun has been investigated. For this purpose, firstly, the dynamic behavior of human induced by firing operations has been analyzed through a series of experimental works using the devised test setup. The characteristics of linear<br/> impulse has been compared under some conditions of support system. In order to design the optimal dynamic isolation system, parameter optimization process has been performed based on the simplified isolation system under constraints of moving displacement and transmitted force. Finally, the performance of the designed dynamic absorbing system has been evaluated by simulation.
Analysis of Isolation System for Impulsive Force Device with Recoil Mechanism
김효준(Kim, HyoJun),류봉조(Ryu, BongJo) 한국소음진동공학회 2005 한국소음진동공학회 논문집 Vol.15 No.3
In this study the optimal isolation system for the prototype HIFD(high impulsive force device) is investigated. For this purpose, firstly, the dynamic behavior of a human body and a transmitted force under specific operation conditions are analyzed through a series of experimental works using the devised test setup. In order to design the optimal dynamic absorbing system, the parameter optimization process is performed using the simplified isolation system model based on the experimental results of linear impulse and transmitted force. Finally, under the parameters satisfying the constraints of the buffering displacement and the transmitted force, the performance of the designed isolation system for the prototype HIFD is evaluated by experiment.
김효준(Hyojun Kim),정종렬(Jongryul Chung),양중근(Jungkun Yang),정재원(Jaewon Chung) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
Electrohydrodynamic (EHD) printing has gained significant interest after a direct writing with a resolution of a few tens nanometer was demonstrated using EHD. Basically, EHD use the electric field to generate droplet which is much smaller than nozzle diameter, so that high resolution printing is possible and the clogging problem can be alleviated as well. However, to adapt this technology to the real application, the fundamental studies are necessary to stabilize EHD jetting, to maximize jetting frequency, and to optimize the design of multi EHD nozzle, etc. In this study, by imaging EHD jetting using high speed camera and measuring the current, the effect of electric field intensity and back pressure on jetting frequency and jetting diameter were studied.