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김문준(Moon June Kim),신대왕(Dae Wang Shin),김근영(Keun Young Kim),김종식(Jong Shik Kim) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.10
The line-of-sight(LOS) stabilization system is a precision electro-mechanical gimbal assembly to isolate the load from its environmental and point the payload toward the target in a desired direction. Rejection disturbance is a major source of the LOS the stabilization control. This paper describes the design approach of disturbance rejection using sliding mode controller with disturbance observer and sliding mode observer. Simulation results show that the proposed approach is effective to reject disturbance and to improve stabilization performance.
HILS를 활용한 전투차량의 반능동 현수장치 적용에 관한 연구
김지웅,김문준,이은준,이경훈,우관제,Kim, Chi-Ung,Kim, Moon-June,Rhee, Eun-Jun,Lee, Kyoung-Hoon,Woo, Kwan-Je 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.6
There have been a lot of efforts on the improvement for the ride comfort and handling stability of the combat vehicles. Especially most of vehicles for military purpose have bad inertial condition and severe operating condition such as the rough road driving, and need a high mobility in the emergency status. It is necessary to apply the controlled suspension system in order to improve the vehicle mobile stability and ride comfort ability of crews. A feasibility study is performed on the application of the semi-active suspension system with a magneto-rheological controlled shock absorber for a $6{\times}6$ combat vehicle. First, the dynamic simulation model of the vehicle including the control model for the semi-active suspension system was executed. Based on this model, a hardware-in-the-loop simulation(HILS) system which has a semi-active suspension controller hardware was constructed. After full vehicle simulations were performed in virtual proving courses with this system, the semi-active suspension system was proven to give better ride comfort and handling stability in comparison with the conventional passive suspension system.
MR댐퍼를 장착한 6X6 군용차량의 감쇠력제어 성능 평가
이은준(Eun-Jun Rhee),김문준(Moon-June Kim),김종건(Jong-Geon Kim),김지웅(Chi-Ung Kim) 제어로봇시스템학회 2012 제어로봇시스템학회 합동학술대회 논문집 Vol.2012 No.7
Magneto-rheological fluids (or simply “MR” fluids) belong to the class of controllable fluids. The merit of MR fluids is their ability to reversibly change from free-flowing, having a controllable yield strength in milliseconds when exposed to a magnetic field. Furthermore, MR fluids provide simple, quiet, rapid response interfaces between electronic controls and mechanical systems. In the paper, a performance evaluation of 6x6 military vehicle with MR damper is investigated. The sky hook as a algorithm to control the damping force is designed. Through mobility test of 6x6 military vehicle, the performances of passive suspension and the semi-active suspension with MR damper are compared.