• Title/Summary/Keyword: 승객의 안전

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A study of Heat & Smoke Extraction Effects by the Various Operation of funnel Fan Shaft Ventilation (터널팬 샤프트 환기 방식에 따른 열 및 연기배출효과에 관한 연구)

  • Rie, Dong-Ho;Yoo, Ji-Oh
    • Fire Science and Engineering
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    • v.18 no.2
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    • pp.49-56
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    • 2004
  • Today's popular ventilation systems include the combined jet fans and electrostatic precipitation systems or the combined jet fans and vertical shaft system. Tunnels with these two ventilation systems applied have been designed and opened, more and more interest has been put in maintenance of a tunnel after opening. Therefore. it is to become more important to come up with the optimal operation mode and the method for the evaluation of ventilation system. In this study, to evaluate a tunnel ventilation and its economy, a dynamic simulation program was developed which can simulate the unsteady-state tunnel air velocity and concentration of pollutants according to the traffic flow variations and operation condition of a ventilation system. We clarified the effectiveness usage on tunnel ventilation by using it and also we could found the most economical ventilation operation mode by application in real exit tunnel. We obtained that combination of fan system and electrostatic precipitation system was more economical than jet fan priority operation mode.

A Case Study of the Convergence Capstone Design Education by Connecting Intellectual Property Rights for Airline Service Department (지식재산권을 연계한 항공서비스학과 융합 캡스톤디자인 교육 사례 연구)

  • Park, Hyun-A
    • Journal of the Korea Convergence Society
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    • v.10 no.9
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    • pp.127-132
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    • 2019
  • This study is an example of the registration of intellectual property rights by applying capstone design to airline service. To relieve the inconvenience of the 'Paper Cage' that is on sale in the airlines, the team create 'Foldable Inflight Pet Cage' for the convenience of passengers accompanying their pets. This allowed not only pets but also passengers on board to make comfortable and safe air travel. Through collaboration with aviation experts and pet cages production experts, the team produced foldable cages that were not previously available. For verification of products, preliminary survey was conducted to enable the commercialization of foldable cage. The project period was 15 weeks, and the participants consisted of 18 students, 1 professor, and 4 industry experts. This study shows Capstone Design can also be applied in airline service and be a valuable research on the necessity of industry-academic links and practical-oriented education.

철도의 신뢰성 관리 활동

  • Kim, Jong-Un;Gu, Byeong-Chun
    • Journal of the KSME
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    • v.51 no.8
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    • pp.44-48
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    • 2011
  • 철도 이해관계자인 승객, 정부, 운영사 그리고 제작사가 철도서비스에 요구하는 핵심적인 품질인자인 안전성, 정시성, 서비스 공급비용 등은 철도시스템의 신뢰성과 밀접한 관계가 있으므로 이들을 만족시키기 위해서는 체계적인 신뢰성 관리활동이 필요하다.

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A study on analysis of accidents type in subway station (지하철 역사 안전사고 조사를 통한 유형 분석에 관한 연구)

  • Kim, Gil-Dong;Yeo, Min-Woo;Park, Sung-Hyuk
    • Proceedings of the KIEE Conference
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    • 2005.10c
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    • pp.261-263
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    • 2005
  • 본 연구는 지하철 역사 내에서 일어나는 사고를 예방하기 위한 역사 내 안전사고 유형 분석을 실시하였다. 지하철 역사 내에 일어나는 사고에 대한 조사를 통해 역사 내 안전사고 유형을 파악하여 안전사고 예방시스템 구현에 활용하고자 한다. 역사 내 사고 유형 분석을 통해 이용승객의 안전성 확보와 승강장 선로에 물건이나 사람이 떨어진 경우 혹은 화재 등의 비상상황발생시 안전시스템을 통해 컴퓨터가 신속히 검지하여 차량과 종합사령실에 알려 차량의 진입을 막아 사전에 피해를 줄이는데 활용할 것이다. 따라서 본 연구를 통해 위급상황에 대한 안전시스템 구성에 도움을 줌으로써 사회적으로 귀중한 생명을 보호하며, 경제적으로는 안전사고 발생에 따른 처리 비용과 안전사고에 따른 지하철 운행지연. 운행 중지 등으로 인한 경제적 비용을 절감할 수 있다.

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버스정류장 승객 알림등에 관한 연구

  • Kim, Hui-Nam;Seo, Dong-Min;Park, Cheol-Jin;Song, Ho-Jun;Kim, Seok-Hui;Kim, Jun-Su;Kim, Tae-Yeong;Kim, Tae-Gwan;Kim, Tae-Hun;Gang, Bong-Seok
    • Proceedings of the Safety Management and Science Conference
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    • 2012.11a
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    • pp.151-157
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    • 2012
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A Study on the Application of Radar Cross Section Characteristic Based Life Saving Appliance for Search and Rescue Activities (조난승객 구조를 위한 레이더반사체 활용에 관한 연구)

  • Jo, Min-Chul;Kim, Hwa-Young;Lim, Sung-Yong;Kang, Hee-Jin
    • Journal of Korea Ship Safrty Technology Authority
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    • s.37
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    • pp.77-87
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    • 2014
  • 많은 선박 사고에서 해상 조난자를 수색 및 구조하는데 매우 많은 시간이 소요되며, 수중에서 체온저하 등으로 적정 시간 내에 구출되지 못한 조난자의 경우 사망 위험이 매우 높은 실정이다. 이러한 위험을 줄이기 위한 기존 기술로는 발광막대, SOS 부이, SART, EPIRB 등이 있으나, 급박한 상황에서 개인이 활용하는 데에는 한계가 있다. 이에 따라, 이러한 문제를 해결하고 효율적인 수색 및 구조 활동을 위한 새로운 방법을 연구하게 되었다.

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구조해석 방법을 이용한 사고전동차의 안전성 평가

  • 정종덕;김원경;홍용기;김정국;편장식
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.05a
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    • pp.108-108
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    • 2004
  • 전동차의 차체는 최대승객하중의 운행조건 하에서 시스템의 기능을 만족하도록 강성 및 강도를 갖도록 되어 있으며, 수직하중 및 수평하중을 지지하는 언더프레임(Under Frame), 측벽의 하중을 지지하는 측면구조틀(Side Frame) 지붕을 구성하는 지붕구조틀(Roof Frame), 끝막이 골조(End Frame)로 구성되어 있다.(중략)

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Durability Evaluation of Gangway Ring for the Articulated Bogie of High speed Railway Vehicle (고속철도차량 관절대차 갱웨이 링의 내구성 평가)

  • Kang, Gil-Hyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.5
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    • pp.66-72
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    • 2019
  • To improve ride quality and running stability of high speed train(HST), it is important that connection between coaches adopts the articulated bogies by using a gangway ring, unlike the conventional independent bogies assembled with car bodies. Although the gangway ring should be ensured absolute safety against passenger movement between coaches during train operation, there is still a lack of quantitative durability criteria of that. Therefore, in order to improve the passenger safety of HST, it is important to study the test requirements on durability evaluation for the ring. In this study, seven mixed loading cases were derived from the triaxial loading(vertical/lateral/longitudinal) modes. The safety factor of each component is at least 2.4 or more from the results of the finite element analysis. In addition, fatigue safety was evaluated through durability analysis from the viewpoint of strain-life design. Durability tests for the gangway ring carried out a total of 10 million cycles in 4 phases load conditions. After the durability test, the defect of each component was investigated using nondestructive testing techniques.

Workplace Hazards, Work Environment, and Physical-Affective Health of Taxi Drivers (법인 택시기사의 승객피해 경험과 사업장 안전문화수준에 따른 신체적 정서적 건강)

  • Ko, Chung-Mee;Koh, Chin-Kang
    • Korean Journal of Occupational Health Nursing
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    • v.19 no.2
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    • pp.246-257
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    • 2010
  • Purpose: The purpose of this study was to explore the factors related to physical and affective well-being of taxi drivers. The main factors of interests were workplace hazards and work environment. Method: This was a cross-sectional descriptive study. A convenience sampling method was utilized. 181 taxi drivers in Seoul metropolitan area completed survey questionnaires. Result: In bivariate analysis, payment system, workplace hazards, and work environment were associated with physical health of taxi drivers. Multiple regression analysis revealed payment system and workplace hazards were significant predictors of physical health. On the other hand, age and workplace hazards, and work environment were significantly associated with affective health in the bivariate analysis. Moreover, workplace hazards and environment were significant predictors of affective health in the multiple regression analysis. Conclusion: To improve taxi drivers' health status, it is critical to reform payment system to monthly payment, establish prevention policies of workplace hazards, and encourage employers and taxi drivers to make efforts for better work environment.

Test and Evaluation based on Standard Regulation of USA Federal Automotive Safety of Assistant Driver's Seat Airbag at Low Risk Deployment Passenger Airbag using Passenger Protection Wrap (승객보호용 랩을 적용한 저위험성 조수석 에어백의 미국 연방 자동차안전 기준법규에 의거한 시험과 평가)

  • Kim, Dong-Eun;Kim, Jin-Hyeong;Kang, Myung-Chang
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.15 no.1
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    • pp.61-67
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    • 2016
  • The airbag is a widely accepted device for occupant protection in the automotive industry. As the injuries induced by airbag deployment have become a critical issue, revisions to Federal Motor Vehicle Safety Standard (FMVSS) 208 were required to create advanced airbags that can protect occupants of varying statures. In this paper, we developed a new low-risk deployment passenger airbag by adding the Passenger Protection Wrap (PPW). The PPW reduces the cushion impact force to the occupant in order to ensure pressure dispersion. A series of tests were conducted by using FMVSS 208 test procedures to demonstrate the proposed system. It was found that the system not only satisfied the injury criteria of FMVSS 208 but was also effective for protecting passengers of all sizes (male, small female, 3-year-old, 6-year-old).