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임오강(Lim O-Kaung),유완석(Yoo Wan-Suk),최은호(Eun-Ho Ryu),류재봉(Jae-Bong Lee),이창훈(Lee Chang-Hoon),김상근(Kim Sang-Geun) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
A three dimensional multibody modeling of a launcher system was developed and dynamic characteristics of the system was carried out. All the components were modeled as rigid bodies, All the components of system, ie; chassis, turret, cage and suspension parts, are modeled as rigid. The force interaction between the ground and tire was modeled as a point contact model. The factors were selected as cause and effect diagram of the MINITAB. To see effect of the stiffness, damping, mass at the launcher system, several cases of suspension parameters were compared and optimal values were selected. The stiffness and the damping coefficient were selected as design variables to minimize the required time for the next fire. The dynamic simulation was carried out using the ADAMS, and the MINITAB was employed for data analysis.
화력과 기동의 통합성능을 고려한 미래 전투차량의 해석 기반 설계 프레임웍 연구
임성훈(Sunghoon Lim),임우철(Woochul Lim),민승재(Seungjae Min),이태희(Tae Hee Lee),류재봉(Jae Bong Ryoo),변재정(Jai-Jeong Pyun) (사)한국CDE학회 2014 한국CDE학회 논문집 Vol.19 No.4
This paper proposes the 3D modeling and simulation technique for predicting the integrated performance of combat vehicle. To consider the practical driving and firing condition of a combat vehicle, the full vehicle model, which can define the six degrees-of-freedom of vehicle motion and various firing angles, is developed. The critical design parameters such as the stiffness and damping coefficient of suspension system are applied to construct the analysis model of vehicle. A simple ballistic model, which incorporates the empirical interior ballistic model and the point mass trajectory model, is built to estimate the firing range and the firing recoil force. To predict the integrated performance and analyze the effect of system parameters, MATLAB/SIMULINK model of a combat vehicle for performing the real time simulation is also developed. Several simulation tests incorporating the road bump and the firing recoil force are presented to confirm the effectiveness of the proposed vehicle model.
화력과 기동의 통합성능을 고려한 미래 전투차량의 해석 기반 설계 프레임웍 연구
임우철(Woochul Lim),임성훈(Sunghoon Lim),김신유(Shinyu Kim),민승재(Seungjae Min),이태희(Tae Hee Lee),류재봉(Jae Bong Ryoo),변재정(Jai-Jeong Pyun) (사)한국CDE학회 2014 한국CDE학회 논문집 Vol.19 No.4
In the design of a combat vehicle, various performances such as firepower, mobility and survivability, etc., should be considered. Furthermore, since these performances relate to each other, design framework which can treat an integrated system should be employed to design the combat vehicle. In this paper, we use empirical interior ballistic and 3D combat vehicle analyses for predicting firepower and mobility performances which are developed in previous study (1) integrated performance modeling. In firepower performance, pitch and roll angle by sequential firing are considered. In mobility performance, vertical acceleration after passing through a bump is regarded. However, since there are many design variables such as mass of vehicle, mass of suspension, spring and damping coefficient of suspension and tire, geometric variables of vehicle, etc., for firepower and mobility performance, we utilize analysis of variance and quality function deployment to reduce the number of design variables. Finally, integrated design optimization is carried out for integrated performance such as firepower and mobility.