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SSD 성능 비교를 위한 UO 트레이스 리플레이어 분석
이인혁 ( Inhyuk Yee ),이규환 ( Kyuhwna Lee ),강윤석 ( Yoonsuk Kang ),조용연 ( Yong-yeon Jo ),김상욱 ( Sang-wook Kim ) 한국정보처리학회 2014 한국정보처리학회 학술대회논문집 Vol.21 No.2
본 논문에서는 I/O 트레이스 리플레이어들의 분석을 통해 SSD 성능 평가에 적합한 리플레이어를 찾는다. 또한 저장장치의 성능 비교를 위한 척도로써 적합한 척도를 도출한다. 실험결과, 시간리플레이어가 I/O 트레이스 리플레이어로써 적합함을 밝히고, Q2C 의 합이 성능 평가에 적합한 척도임을 보인다.
박영환(Younghwan Park),홍정화(Junghwa Hong),김경훈(Kyunghoon Kim),이인혁(Inhyuk Lee) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
As the number of wheelchair users increases, the safety of the wheelchair user is becoming a big concern. An increasing number of wheelchair users use their wheelchairs as motor vehicle seats when traveling. A standard requires that compliant wheelchairs be dynamically sled impact tested. However, testing to evaluate the crashworthiness of wheelchair seating systems (WCSS) independent of their wheelchair wheel is not addressed by this standard, To address this need, this study developed a method to evaluate the crashworthiness of WCSS with independent wheels using computer simulation. To secure the safety, minimum strength requirements for the wheelchair are proposed based on the Federal Motor Vehicle Safety Standard (FMVSS) 207 regulation for the normal seats used in the vehicle. This test protocols, used to test the strength of motor vehicle seats, were modified and used to test the strength of wheelchair frame. Forward and rearward loads were applied at the WCSS center of gravity (CGSS), and a moment was applied at the uppermost point of the seat back. From the simulation, we could know a stress distribution by the applied load. As the result of this study, presents the criteria to minimize the injury of the wheelchair passenger and provides design guidelines to the manufacturers of wheelchair.
자동차 충돌안전도 해석용 유한요소 인체 모델 개발 : Part Ⅱ 5% 성인 여성 모델
나상진(Sangjin Na),황대현(Daehyun Hwang),사성진(Sungjin Sah),이광희(Kwanghee Lee),영정태(Jungtae Yang),최형연(Hyoungyun Choi),이인혁(Inhyuk Lee),이진희(Jinhee Lee) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
The Small female driver is much more vulnerable during the airbag deployment since they tend to sit on the fore side of seat while driving. In order to evaluate the aggressivity of airbag deployment on small female, so called "Out of Position" problem, it is very often to employ the Hybrid Ⅲ 5% dummy. The lack of biofidelity of Hybrid Ⅲ 5% dummy, however reveals the limits to the understanding of OOP related injury mechanism. Accordingly, a finite element model for small female(5%) has been proposed in this study. As a first step, multi-body rigid model, FARB(Female Articulated Rigid Body) has been developed and validated. Some parametric OOP simulation results will be also presented.