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칵핏 모듈의 Knee Bolster 개발시 충돌 해석 절차의 적용
고창성(Changseong Ko),유재우(Jaewoo Yoo),이강욱(Kangwook Lee),여태정(Taejung Yeo) 한국자동차공학회 2004 한국자동차공학회 Symposium Vol.- No.-
Knee bolsters in cockpit module playa crucial role in absorbing energy when a crash accident happens. So, the good design of knee bolster is important to meet the safety regulation (FMVSS 208). Nowadays, FE(Finite Element) analysis is widely used to predict the performance prior to manufacturing. In this study, lower-body dummy knee impact model was evaluated by comparison with full dummy knee impact model, which includes airbag and steering column model. Using lower-body dummy knee impact model, the knee impact performance was exploited with changing several design variables, Also, the effects of knee bolster bracket shape and material change were investigated. As a result, the optimal design of knee bolster bracket satisfying the safety regulation could be derived.<br/>
고창성(Changseong Ko),박종현(Jonghyun Park),박경환(Kyunghwan Park),박순조(Soonjo Park) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Weight minimization is important to reduce the vehicle cost and environment problem. Shape optimization is one of methods to reduce the weight but not used widely due to the difficulty of use. In this study, shape optimization and newly shaped FE model generation with morphing technique is explored. Also merits and demerits comparison of the commercial software was performed to furnish information of morphing technique. The research results show that newly shaped FE model generation with morphing technique is successful and very efficient way to reduce the time of product development.
MDPS 동역학 해석을 위한 BLAC 모터 모델링 기법 개발
최승렬(Seungryul Choi),고창성(Changseong Ko),박내춘(Naechun Park),김상훈(Sanghoon Kim) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Recently, hydraulic power steering systems have been displaced by electric power steering systems in small and light passenger cars. The analysis of MDPS system is being useful and essential process, dynamic analysis of MDPS system is particularly important, because it can help the design of steering system by using evaluation and prediction system performance. In this study, The MDPS motor model was developed with Matlab Simulink form, which was useful to co-simulate with ADAMS model. With this motor model, the dynamic model of total steering system was developed and the dynamic analysis was performed to evaluate steering performance. The ripple vibration analysis was carried out, and the correlation with test results was performed to validate motor model.
방사성 폐기물 처분연구의 QA절차에 따른 웹기반 문서처리 워크플로우 시스템 개발
김태운,고창성,서대희,이광욱,강철형,황용수,이연명 한국정보시스템학회 2003 情報시스템硏究 Vol.12 No.1
During the early stage of radioactive disposal programs, important issues related with quality assurance of data sets, methodologies, R&D procedures are recognized as important ones. This paw focused on the development of web-based workflow standards for the QA procedures of the radioactive waste disposal programs. The flow of process was analyzed based on workflow concepts proposed by the Workflow Management Coalition (WfMC). QA system is based on the principles of T2R3. T2R3 stands for transparency, traceability, review, reproducibility, and retrievability. Workflow was used to standardize and restructure the business and/or work process in the industry or orpakation. The WfMC has identified five functional interfaces to a workflow service as part of its standardization program They are composed of process definition interface, worklist handler, application program interface, interface between workflows, and system management. The task flow and QA program were defined based on the wokflow ideas. QA procedures for the R&D results of radiation disoposal were analyzed following the reference model of workflow. In addition, six program run list were created and implemented. The creation, revision, and approval of the test data were designed to be inplemented on the web environment. Through this system, R&D procedures such as planning, research, documentation, internal review and future independent peer review processes could be well organized and stored more systematically on the database and knowledge base. This will encourage the usage and data sharing between interested parties through it's clear and transparent workflow standards.