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세월호 타기 장치 실증모형장치 개발 및 검증에 관한 연구
윤영환(W. Y. Yoon),김동명(D. M. Kimm),허성환(S. H. Hur) 유공압건설기계학회 2021 유공압건설기계학회 학술대회논문집 Vol.2021 No.11
세월호 조타 장치의 솔레노이드 밸브 고착과 전타 선회 현상 규명을 위해, 세월호 조타장치 실증 모형 장치 개발을 통해 다양한 시나리오에 대한 평가를 수행하였다. 실증 모형 장치 검증은 세월호 조타기와 동등 성능의 조타장치 실증 모형 장치를 개발하여 시험을 통해 실증 모형 장치의 신뢰성을 검증하였다. 검증된 실증 모형 장치를 이용하여 다양한 시나리오를 실증적으로 규명하였다. 실증 모형 장치를 이용하여 실선에서 모사하기 힘든 다양한 시나리오에 대해 평가 및 분석을 수행하였다.
윤영환(Y. H. Yoon),장주섭(J. S. Jang),이용범(Y. B. Lee) 유공압건설기계학회 2012 유공압건설기계학회 학술대회논문집 Vol.2012 No.6
A modeling technique is proposed for dynamic simulations of swash plate axial piston pump. A dynamic model of Axial piston pump is used to SimulationX software. SimulationX, multi-domain simulation and modeling tool for the design, analysis, and optimization of complex systems. This papers modeling of a hydralic axial piston pump with SimulationX and complete model of an axial piston plate pump with 9 elements combined with 3D-animation. The MBS(Multi Body System) part of the model is more for animation even the piston masses are physical models. Only the piston block is an animation body. This model is to show the hydraulic network. There are no centrifugal effects at pistons or barrel included. SimulationX modeling physical systems based on libraries of basic elements is the key for rapid prototyping and modeling. The purpose of this papers is to give a framework to SimulationX users to model an axial piston pump. Some of the results obtained are perhaps different from a real device and now the work of the component designer to adjust the different parameters and the variable edges, the design parameters of the piston, swash plate control parts and so forth.
ABS/VDC 검증을 위한 RT 모델 기반 EILS 개발
윤영환(Y. H. Yoon),조재설(J. S. Cho),양기영(G. Y. Yang),이용범(Y. B. Lee) 유공압건설기계학회 2019 유공압건설기계학회 학술대회논문집 Vol.2019 No.6
The development of Safety control system [ABS / VDC] can be reduced development cost and time by Simulation Techniques which can pre-verify various requirements and design specifications at the initial development’s stage. Simulation techniques can be classified into MILs, SILs, and HILs. HILs is a technology designed to be developed at the same level as real systems by combining it with real hardware to improve the inaccuracies of pure simulation techniques such as MILs and SILs. However, in the case of commercial vehicles which are having many wheels and axes. So there are limitations in establishing HILs environment for verifying and developing commercial vehicle’s Safety control systems. In this study, we propose a development method to convert actual pneumatic brake system into RT [Real time] model through the Analytical Model. Also, we propose RT-based EILs [ECU In-the Loop Simulation] which provides equivalent environment to HILs by replacing actual hardware with RT model.
윤영환(Younghwan Yoon),장주섭(Joosub Jang),임용수(Yongsoo Lim),최주용(Ju Yong Choi) 한국자동차공학회 2011 한국자동차공학회 지부 학술대회 논문집 Vol.2011 No.10-2
Performances and characteristics of SimulationX and AMESim software are introduced concisely. One-dimensional simulation software similar to each other including a hydraulic system and evaluate the characteristics of the software in the hydraulic domain. SimulationX and AMESim models are equally easy to build. In order to provide theoretical analysis for the flow control valve and hydraulic power steering system, the simulation model based on SimulationX and AMESim is developed in the paper. In this study, hydraulic power steering system analysis model which includes hydraulics and mechanical sub-systems was developed using commercial software. SimulationX and AMESim in order to predict characteristics for various design parameter. SimulationX high potential compared to AMESim is due to mainly to the exactly solving in continuity and orifice equation. SimulationX is strongly recommended for hydraulic componented and system design and each powertrain element has to be brought additionally