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

The Korean Society of Mechanical Engineers (대한기계학회)
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The Development of an Adjustable Dual-Level Load Limiter

적응형 듀얼레벨 로드리미터 개발

  • Lee, In-Beom (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.) ;
  • Kang, Shin-You (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.) ;
  • Kim, Seock-Hyun (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.) ;
  • Ryoo, Won-Wha (Corp. of Autoliv Korea)
  • 이인범 (강원대학교 기계메카트로닉스공학과) ;
  • 강신유 (강원대학교 기계메카트로닉스공학과) ;
  • 김석현 (강원대학교 기계메카트로닉스공학과) ;
  • 유원화
  • Received : 2011.07.05
  • Accepted : 2011.07.25
  • Published : 2011.10.01
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Abstract

In this paper, the development of an adjustable load limiter is presented, which is a component of the seat belt. The adjustable load limiter is loaded at different levels for varied weights and heights of occupant. The recent regulation FMVSS 208 demands strict safety standards for different percentiles of dummy size. In this work, high- and low-level load conditions are proposed according to dummy scale and thoracic injury criteria. The suggested load conditions were verified by performing a sled test using the benchmark model. A dual-level load limiter has been developed on the basis of these tests. Experiments were conducted on the product performance, and finite element analysis was carried out; the results confirmed the points for improvement.

이 응용논문에는 적응형 로드리미터에 대해 기술되어 있다. 적응형 로드리미터는 안전벨트의 구성품 중 하나이며, 이는 승객의 다양한 체중과 키에 따라 하중량을 고하중과 저하중으로 변환시킬 수 있는 장치이다. 최근, FMVSS 208규정은 다양한 더미크기에 대해 엄격한 안전기준을 요구하고 있다. 이에 따라 우리는 고하중 조건과 저하중 조건 시 각각 더미에 흉부 상해정도를 알아보았고, 실험을 통해서 벤치마킹모델의 하중조건을 확인하였다. 이를 토대로 적응형 듀얼레벨 로드리미터를 개발하여 성능 실험을 실시하였고, 유한요소해석을 통해 설계 개선점을 확인하였다.

Keywords

References

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