Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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An Optimal Design of a Pedestrian Safety System Using a Design Scenario

설계방법론을 이용한 보행자 보호 시스템의 최적설계

  • Received : 2014.04.10
  • Accepted : 2014.06.09
  • Published : 2014.09.01
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Abstract

Vehicle-into-pedestrian traffic accidents show a very high mortality rate compared to their frequency of occurrence. Throughout the world, governments and insurance companies tend to establish and implement new safety standards for pedestrian protection. In order to improve the performance of pedestrian protection, the Korean government has evaluated the pedestrian safety of vehicles under the Korea New Car Assessment Program (K-NCAP) since 2007. The pedestrian protection performance has improved gradually, but it remains insufficient. A pedestrian protection system consisting of a hood lift system and a pedestrian airbag can be a solution to pedestrian safety. A pedestrian airbag design procedure based on a newly defined design scenario is introduced to reduce the head injury criterion of pedestrians. The proposed design scenario is discussed from a practical viewpoint and applied to manufacture pedestrian protection systems.

차대 보행자 교통사고는 발생빈도에 비하여 사망률이 매우 높은 특징이 있다. 전세계적으로 정부 및 보험사에서는 보행자 보호를 위한 새로운 안전기준을 수립 및 강화하는 추세이다. 보행자 보호 성능을 향상시키기 위하여 한국정부는 2007 년부터 신차안전도평가에서 보행자 안전을 평가하고 있다. 보행자 보호 성능은 점진적으로 향상되었으나 여전히 미흡한 상태이다. 전개형 후드 및 보행자 에어백 등으로 구성되어 있는 보행자 보호 시스템은 보행자 보호를 위한 대안이 될 수 있다. 보행자의 머리상해기준값을 감소시키기 위하여 새롭게 정의된 설계방법론을 바탕으로 보행자 에어백 설계 절차를 제안하였다. 제안된 설계방법론을 실용적인 측면에서 검토하였고 보행자 보호 시스템의 제작에 적용이 가능하다.

Keywords

References

  1. 2013, Road Traffic Authority, Traffic Accident Statistical Analysis.
  2. Construction and Transportation Research Report, 2008, "Development of Advanced Vehicle for Pedestrian Safety," R&D/03-Safety-11, Ministry of Land Transport and Maritime Affairs.
  3. 2014, European New Car Assess Program, http//www.euroncap.com/home.aspx, European Commission.
  4. 2014, Korea New Car Assessment Program, http://www. car.go.kr/jsp/kncap/introduction, Ministry of Land Transport and Maritime Affairs.
  5. Ashton, S. J., Pedder, J.B. and Mackay, G M., 1977, "Pedestrian Injuries and the Car Exterior," SAE, 770092.
  6. Clemo, K. and Davies, R., 1998, "The Practicalities of Pedestrian Protection," 16th ESV Conference, 98-S10-P-16.
  7. Krenn, M., Mlekusch, B., Wilfling, C., Dobida, F. and Deutscher, E., 2003, "Development and Evaluation of a Kinematic Hood for Pedestrian Protection," World Congress & Exhibition, 2003-01-0897, Detroit, MI, USA.
  8. Nagatomi, K., Hanayama, K., Ishizaki, T., Sasaki, S. and Matsuda, K., 2005, "Development and Full-scale Dummy Tests of a Pop-up Hood System for Pedestrian Protection," 19th International Technical Conference on the Enhanced Safety of Vehicles, pp.6-9.
  9. Shin, M. K., Park, K. T., Lee, K. B., Bae, H. I. and Park, G. J., 2006, "Design of the Active Hood Lift System Using Orthogonal Arrays," Transactions of KSAE, Vol.14, No.4, pp.123-131.
  10. Yoo, W. D., Ham, J. S. and Cho, K. S., 2012, "Development and Feasible Study of Train to Pedestrian Protection Airbag," Transactions of KSAE, Vol. 20, No. 4, pp. 82-91. https://doi.org/10.7467/KSAE.2012.20.4.082
  11. 2012, "LS-DYNA Keyword User's Manual," Livermore, California : Livermore Software Technology Corporation, USA.
  12. 2011, "PIAnO User's Manual," PIDOTECH Inc., Seoul, Korea.
  13. Yoon, S. J. and Choi, D. H., 2010, "Process Integration and Design Optimization Using PIAnO Software," KSME Spring Annual Meeting.
  14. Kim, J. H., Lee, K. H. and Joo, W. S., 2004, "Optimization of a Driver-side Airbag Using Kriging and Tabu Search Method," Trans. Korean Soc. Mech. Eng. A, Vol. 19, No.1, pp.1035-1040.