• 제목/요약/키워드: 나상진

검색결과 13건 처리시간 0.018초

화보

  • 대한건축사협회
    • 건축사
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    • 제4권15호통권15호
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    • pp.10-21
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    • 1969
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$5_{th}$ Percentile 성인 여성 유한요소 모델을 이용한 OOP(Out-of-Position) 문제에 대한 수치해석 (Numerical Simulation of OOP(Out-of-Position) Problem with$5_{th}$ Percentile Female F.E Model)

  • 나상진;최형연;이진희
    • 한국자동차공학회논문집
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    • 제12권3호
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    • pp.177-183
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    • 2004
  • The out-of-positioned small female drivers are most likely to be injured during airbag deployment due to their stature and proximity to the steering wheel and airbag module. In order to investigate the injury mechanisms, some experimental studies with Hybrid III 5% female dummy and with female cadavers could be found from the open literatures. However, the given information from those experimental studies is quite limited to the standard conditions and might not be enough to estimate the airbag inflation aggressiveness regarding on the occupant responses and injury. In this study, a finite element analysis has been performed in order to investigate the airbag-induced injuries. A finite element 5% female human model in anatomical details has been developed. The validation results of the model are also introduced in this paper.

SWSI에 기반한 금강권역 농업용 저수지의 수문학적 가뭄평가 (Hydrological Drought Assessment of Agricultural Reservoirs based on SWSI in Geum River Basin)

  • 안소라;박종윤;정인균;나상진;김성준
    • 한국농공학회논문집
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    • 제51권5호
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    • pp.35-49
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    • 2009
  • This study proposes a method to evaluate agricultural reservoirs drought by modifying SWSI (Surface Water Supply Index). The method was applied to Geum river basin and the results were represented as spatially distributed information. The SWSI evaluates hydrological drought of watershed unit by selectively applying one or all of the components of snowpack, precipitation, streamflow and reservoir storage. South Korea has 22 % of agricultural area, and rice paddy covers 64 % among them. Usually paddy fields scattered along stream are irrigated by so many small agricultural reservoirs. It is difficult to evaluate agriculture drought by the little information and large number of agricultural reservoirs. In this study, seven agricultural reservoirs over 10 million ton storage capacity were selected in Geum river basin, and the SWSI was evaluated for both upstream and downstream of the reservoirs using 16 years data (1991-2006). Using the results, multiple regression analyses with precipitation and reservoir storage as variables were conducted and the equations were applied to other watersheds. The spatial results by applying regression equations showed that the severe and moderate drought conditions of July and September in 1994, June in 1995, and May in 2001 were well expressed by the watershed unit.

충돌 안전도 해석을 위한 $5^{th}$ percentile 성인 여성 유한요소 모델 개발 - Part II 신체 부위 별 상세 모델 개발 (Development of $5^{th}$ percentile female finite Element Model for Crashworthiness Simulation - Part II Detail Modeling of Internal Components)

  • 나상진;최형연;이진희
    • 대한의용생체공학회:의공학회지
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    • 제25권4호
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    • pp.283-288
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    • 2004
  • 본 논문에서는 작은 여성 승객의 충돌해석을 위한 유한요소 모델링에 대하여 Part I 의 분절된 강체 모델에 이어 소개하고 있다. 추가로 모델링 된 상세한 팔, 다리 및 내부 요소들이 분절된 강체 모델에 합체되어 충돌 상해 즉 골절 또는 탈골 등을 예측하게 된다. 이러한 사지 및 내부 요소들의 거동 특성은 확보된 사체 실험 결과와 비교, 검증하였다. 따라서 본 논문에서 제안하고 있는 작은 여성 인체 모델은 충돌 상해 기구학의 조사 및 현존하는 충돌 더미의 생체 충실도를 보완하는데 활용될 수 있다.