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최영진(Choi Young Jin),이영신(Lee Young Shin),한규현(Han Kyoo Hyun),채제욱(Chae Je Uk),최의중(Choi Eui jung) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
The rifle impact of human body affected by the posture of human for rifling. The interaction human-rifle system influence the firing accuracy. In this paper, impact analysis of human model for shooting posture is carried out. ADAMS code and LifeMOD is used in impact analysis of human model and modeling of the human body, respectively. On the shooting, human model is affected by rifle impact during the 0.001 second. Performed simulation time for shooting is 0.1 second. Applied constraint condition to human-rifle system is rotating and spherical condition. As the results, the displacement of rifle and transfer path analysis of impact of human model is presented.
여운주,이준호,최의중,Yeo, Woon-Joo,Lee, Joon-Ho,Choi, Eui-Jung 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.2
In this paper, a study on variation of an accuracy rate as the gradient of a rifle is shown. In the a state of hostilities, a soldier is not easy to take a shot vertically against the ground. If a soldier shoots as the pistol is inclined, how the accuracy rate is changed. While the pistol is shot, the change of ballistic curve is estimated. And we also verify the accuracy rate through the firing test. Then we compare two results and present some ideas which overcome the decrease of an accuracy rate. Hereafter, it is possible to adapt in the future soldier system and expected that the accuracy rate of the conventional gun is maintained.
단반동 주퇴작동식 소구경 화기의 동역학적 거동 특성 연구
채제욱(Je-Wook Chae),최의중(Eui-Jung Choi),이성배(Sung-Bae Lee),이찬(Chan Lee),이영신(Young-Shin Lee),홍계정(Gye-Jung Hong) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.10
The operating principle of the small arms is well known. But it was difficult to apply the theory for real weapon system without analyzing dynamic characteristics. In this study, we designed short-recoil operated weapon system and then studied design parameters, such as mass of moving parts, stiffness of spring, etc. After that we made and test the experimental launcher system according to the result of analysis. As the simulation result is good agreement with the test result, it is expected that these technique can be applied to the development of similar weapon systems.
이세훈(Se-Hoon Lee),이영신(Young-Shin Lee),최영진(Young-Jin Choi),채제욱(Je-Wook Chae),최의중(Eui-Jung Choe),홍석균(Suk-Kyun Hong) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
The rifle impact of human body is affected by the posture of human for rifling. The human model of shooting posture is defined by the action of shooter. The shooting impact of the rifle is transferred to the human model. In this study a finite element analysis has been performed in order to investigate the human body impact by shooting of rifle. The model(height 170 ㎝, weight 60 ㎏) is developed by finite element method using beam elements. The human body impulse is analyzed by the ANSYS 8.1 code. The human impact analysis of stand shooting posture, knee shooting posture and prone shooting posture is investigated. In this study, the rifle used for the impulse analysis is K2. The applied load for the simulation inputs is about 4 kN. As the results, the displacement and stress of human body is presented.
3-D Beam 요소 인체모델을 이용한 사격충격 구조해석
이세훈(Se-Hoon Lee),이영신(Young-Shin Lee),최영진(Young-Jin Choi),이재옥(Jae-Ok Lee),채제욱(Je-Wook Chae),최의중(Eui-Jung Choi) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
The rifle impact of human body is affected by the posture of human for rifling. The human model of shooting posture is defined by the action of shooter. The shooting impact of the rifle is transferred to the human model. In this study a finite element analysis has been performed in order to investigate the human body impact by shooting of rifle. The model(height 170 ㎝, weight 60 ㎏) is developed by finite element method using beam elements. The human body impulse is analyzed by the ANSYS 8.1 code. The human impact analysis of stand shooting posture, knee shooting posture and prone shooting posture is investigated. In this study, the rifle used for the impulse analysis is K2. The applied load for the simulation inputs is about 4 kN. As the results, the displacement and stress of human body is presented.
이세훈(Se-Hoon Lee),이영신(Young-Shin Lee),최영진(Young-Jin Choi),이재옥(Jae-Ok Lee),최의중(Eui-Jung Choi),체재욱(Je-Wook Chae) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
On the human-rifle system, the human body is affected by the firing impact. The firing impact will reduce the firing accuracy and change the initial shooting posture. Therefore the study of biomechanical characteristics using human-rifle modeling and numerical investigation is needed. The muscle-skeleton model is developed by finite element method using beam and spar elements. In this study structural analysis has been performed in order to investigate the human body impact by firing of 5.56㎜ small caliber machine gun. The firing experiments with stand shooting posture performed to verify analytical results. The result if this study shows analytical displacements of the human-rifle system and experimental displacements of the real firing. As the results, the analytical displacement and stress of human body is presented.