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A Study on the Injury Assessment of Helicopter's Crew with Multi Point Restraint System under Drop Impact

낙하 충격을 받는 다점 구속 장치를 착용한 헬기 승무원의 상해도 평가에 관한 연구

  • 이중현 (충남대학교 대학원 기계설계공학과, BK21 메카트로닉스 사업단) ;
  • 이영신 (충남대학교 기계설계공학과, BK21 메카트로닉스 사업단)
  • Published : 2009.06.01

Abstract

In this paper, a method of modeling seat belts on crew seat during dynamic seat testing was studied. The body segments of the occupant were modeled with joints. The joints consisted with various stiffnesses, dampings, and frictions. Three types of seat belt restraint systems were investigated. The analysis for on the injury assessment of helicopter's crew under drop impact was conducted. The effectiveness of the seat belt system for crashworthiness and safety was evaluated. As the results of impact analysis, head, neck and spine of the crew can be easily damaged in the vertical direction more than the longitudinal direction. Based on the verified model, behavior of human body was studied with three-point restraint systems. The displacement and injury level of the 12-point restraint system was the smallest.

Keywords

Crashworthiness;Drop Impact;Human Body Impact;Musculoskeletal Model

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