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윤민수(Yoon Min Su),장강원(Jang Gang Won),박재하(Park Jae Ha) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
A topology optimization technique to develop extremely light trailer frame structure is performed due to the strong needs of the customers and makers owing to high level of oil price. First, the overall layout of the frame is derived using topology optimization and then, final specification is also derived utilizing DOE optimization technique for mass product.
식스 시그마 DFSS와 VE를 이용한 경량 파렛트 설계
윤민수(Yoon Min Su),황정필(Whang Jeong Feel) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
A steel pallet to carry lighter logistic articles is developed based on the DFSS(design for Six Sigma) methodology. Combining the conventional DFSS(Design For Six Sigma) methodology with that of VE(Value Engineering) is the novel feature of this paper to achieve maximum cost reduction. In this paper, systematical steps to achieve the required structural spec's are presented by conventional DMEDI(Define-Measure-Explore-Develop-Implement) process. To imply the target costing, evaluation of .functions consisting of the pallet has been performed by value methodology. Then best design concept is selected in the Explore step, following structural optimization utilizing FEM. Finally the performance of prototype is investigated by pilot test in the Implement step. The developed steel pallet is being commercialized in the fields of automated ware house.
시스템 가구 파티션의 구조 해석을 통한 안정성 검증 및 최적화
윤민수(Yoon Min Su),임성우(Im Sung Woo) 한국퍼실리티매니지먼트학회 2002 한국퍼실리티매니지먼트학회지 Vol.4 No.1
A technical structural analysis to optimize the panel used in the system furniture is performed. The condition for the safe usage is derived from the experienced data, which becomes the guideline to the additional analysis. We analyzed the existing panel by computer simulation. then executed sensitivity analysis changing the thickness of each component of the panel lo verify the proper thickness od each parts. Through innumerous simulation, we could achieve the improved panel. which is lighter and stiffer than the previous model.
심박변이도와 자율신경계 주요 지표들 간의 상관 관계에 대한 데이터 분석
윤민수(Yoon-Min Su),민규식(Min-Kyou Sik),이호승(Lee-Ho Seong),안우진(Ahn-Woojin),박대관(Park-Dae Gwan),조위덕(Cho-We Duke) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10
자율신경계(autonomic nervous system, ANS)는 말초신경계통에 속하는 신경계로 우리 몸속의 장기와 심장, 외분비샘, 내분비샘을 통제하여 몸의 환경을 일정하게 유지하는 역할을 한다. 신체의 상태를 비침습(non-invasive)적으로 판단하기 위한 방법으로 심박변이도(heart rate variability) 측정 방법을 이용하여 자율신경계와의 관계성을 확인하고 체내 항상성(homeostasis) 유지능력을 판단할 수 있다.
윤민수(Yoon Min Su),최광(Choi Kwang),황정필(Whang Jeong Feel) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
A steel pallet to carry heavy logistic articles is developed based on the DFSS(design for Six Sigma) methodology. In this paper, a systematical steps to achieve the required structural spec's are presented by conventional DMEDI(Define-Measure-Explore-Develop-Implement) process. First, a business case is presented in the Define step. Second, CTQ(critical to quality) is derived on the basis of VOC(voice of customer)analysis. Then design concept is selected in the Explore step, following structural optimization utilizing FEM. Finally the performance of prototype is investigated by pilot test in the Implement step. The developed steel pallet is commercialized within 6 months. The product is now on use in POSCO.
귀의 비침습적 미주신경 전기자극을 위한 임베디드 시스템 구현 및 기능시험
윤민수(Yoon-Min Su),민규식(Min-Gyu Sik),이호승(Lee-Ho Seong),안우진(Ahn-Woojin),박대관(Park-Dae Gwan),장우림(Jang-Woo Rim),조위덕(Cho-We Duke) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
Non-invasive auricular vagus nerve electrical stimulation is suitable for diseases with high drug dependence and convenient in terms of usability. Vagus nerve electric stimulation uses biphasic current pulse to directly perform electrical stimulation on the epidermis of the body, each parameter for implementing stimulation was reviewed and a circuit module was studied.
다구찌기법을 이용한 대형 평판트레일러 하부프레임 경량설계
김진곤(Jin Gon Kim),윤민수(Min Su Yoon) 대한기계학회 2010 大韓機械學會論文集A Vol.34 No.3
최근 환경문제로 인한 차량의 연료절감이 중요해지면서 수송산업에서도 대형 수송기계의 경량설계에 대한 필요성이 지속적으로 커지고 있다. 본 연구에서는, 고강도강으로 대체된 대형 평판 트레일러 프레임의 경량모델을 개발하기 위하여 구조해석을 수행하였다. 이를 위하여, 트레일러 프레임의 주요 설계변수들을 선정하고 다구찌 기법을 적용하여 응력, 처짐량 그리고 비틀림 강성에 대하여 최적화된 결과를 도출하였다. 또한, 도출된 경량설계안의 타당성을 검토하기 위하여 시작품을 제작하여 실제 내구시험을 수행하였다. For achieving economical fuel consumption, an increase in the load bearing capacity, and for environmental conservation, there is a constant demand for lightweight frames of commercial vehicles used in the transportation industry. In this study, a structural analysis of the frame of a heavy flat-bed trailer was performed to determine the optimal design of a new lightweight frame made of high-strength steel. To identify the key design parameters of the trailer frame, Taguchi’s orthogonal array was used in the experiments. Using ANSYS, a commercial FEA program, the frame structure was optimized with respect to stress, deflection, and torsional stiffness by performing stress and vibration analyses. A physical model of the trailer was also built to verify the validity of the numerical analyses. Finally, an on-road fatigue test of the new lightweight frame made of the high-strength steel, ATOS80, was performed to confirm the durability of the new design.