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Hardware-In-the-Loop System(HILS)를 이용한 ABS(Anti-Lock Brake System) 개발환경 구축
조경상(Kyung-Sang Cho),최연훈(Yeun-Hun Choi),황재연(Jae-Yon Hwang),양순용(Soon-Yong Yang),박성태(Sung-Tae Park) 한국자동차공학회 1999 한국 자동차공학회논문집 Vol.7 No.2
An efficient simulation platform for the development of anti-lock brake system (ASS) is presented. To reduce computational burden due to the rigidity of a hydraulic unit comprising brake system, the hydraulic brake system is built and integrated to a virtual 18-DOF vehicle dynamics model. The latter is used to describe dynamics of the target vehicle under extreme maneuvers. The Hardware-in-the-Loop system thus built allows the investigation of not only the dynamic behavior but also hydraulic responses of the vehicle with a complete assess to all system parameters and state variables.<br/>
케이크 여과 이론으로 분석한 중금속 용액의 정밀여과 특성
송연민 ( Yun Min Song ),조경상 ( Kyung Sang Cho ) 한국폐기물자원순환학회 2021 한국폐기물자원순환학회지 Vol.38 No.2
The cake filtration theory in microfiltration was analyzed through experimental results. Micro-filtration of cupric solutions was performed with and without coagulation. The pore sizes of the filter media were 0.1 μm, 0.2 μm, and 0.45 μm. The average specific cake resistances were obtained under cross-flow filtration conditions by Ruth’s equation. The compressibility of the resultant cake was 1.19, verifying the micro-filtration mechanism. In addition, no significant improvement in permeate flow rates was identified with coagulants aluminum sulfate(alum), and polyaluminum chloride(PAC) compared to permeate flow rates without a coagulant.