DOI QR코드

DOI QR Code

추락과정에서의 인체 허용한도 중요성 연구

A Study on the Emphasis of Human Tolerance in the Crash Event

  • Hwang, Jungsun (Rotary Wing Systems Division, Agency for Defense Development) ;
  • Lee, Sangmok (Rotary Wing Systems Division, Agency for Defense Development)
  • 투고 : 2013.05.06
  • 심사 : 2013.08.22
  • 발행 : 2013.09.01

초록

항공기, 자동차를 포함하는 모든 수송수단 설계에 있어서 내추락성 설계가 강조되고 있으나, 심각한 부상 또는 사망으로 이어지는 사고는 지속적으로 발생해 왔고, 앞으로도 발생할 것이다. 심지어 생존 가능으로 분류되는 사고에서조차도 상당한 수준의 인명사고가 있어 왔음은 주지의 사실이다. 그러나 이러한 사고들이 반드시 불가피하다고만 할 수는 없다. 만약 좌석, 구속장치, 탑승공간 강도조건 등 탑승자 보호계통이 적절히 또는 바르게 설계된다면 추락상황에서의 생존성은 획기적으로 증대될 수 있다. 이를 위해서는 급격한 가속도 변화환경에서의 인체 허용한도 특성을 충분히 이해해야 하며, 이를 바탕으로 인체 허용한도 제한치 이내에서 하중조건이 유지되도록 탑승공간을 설계하여야 한다. 본 논문에서는 급격한 가속도 변화환경에서의 인체 허용한도의 중요성과 예측되는 추락환경 변화에 따른 설계요구도 변화 필요성을 강조함으로써 내추락성 설계에 대한 공감대를 넓히고자 한다.

Design with crashworthiness concept has been emphasized for almost aircraft and motor vehicles. However, crashes accompanied serious injury and death have been continuously occurred, and will be occurred subsequently. What was worse, it is a well-known fact that there were a good many crashes classified as survivable accidents in which fatal injuries were reported. But we cannot say that fatal injuries were inevitable consequences of those crashes. If crashworthy design for seat, restraint systems, and cabin strength were adequate or right, survivability in a crash event could be maximized greatly. To substantiate the right crashworthiness, we must thoroughly understand the characteristics of human tolerance under abrupt acceleration change, and the cabin design should be combined with proper use of energy absorbing technologies that reduce accelerations experienced by the occupants. In this paper, the emphasis on the human tolerance under abrupt accelerations as well as the necessity of change in design requirements for crash environment will be stressed to widen the belt of consensus for the right crashworthy design.

키워드

참고문헌

  1. Shanahan D.F., "Human Tolerance and Crash Survivability," RTO HFM Lecture Series on "Pathological Aspects and Associated Biodynamics in Aircraft Accident Investigation," Madrid, Spain, Oct. 2004.
  2. USAAVSCOM TR 89-D-22, "Aircraft Crash Survival Design Guide," Volumes 1-5, Dec. 1989.
  3. Shanahan D.F., "Basic Principles of Helicopter Crashworthiness", Report No. 93-15, Fort Rucker, Alabama : U.S. Army Aeromedical Research Laboratory, 1993.
  4. Eiband, A.M., "Human Tolerance to Rapidly Applied Accelerations : A Summary of the Literature," NASA Memorandum, Memo 5-19-59E, June 1959.
  5. Melvin, J.W., Baron, K.J., Little, W.C., Gideon, T.W., and Pierce, J., "Biomechanical Analysis of Indy Race Car Crashes," 42nd Stapp Car Crash Conference, Tempe, Arizona, Nov. 1998.
  6. Coleshaw SRK, "Surviving a Helicopter Crash in Water - The Way Forward?," Journal of Ocean Technology, Vol.5, No.4, 2010.
  7. JSSG-2010-7, "Crew Systems: Crash Protection Handbook,"U.S. Department of Defense, Oct. 1998.