Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Development of Multibody Dynamic Model of Cervical Spine for Virtual In Vitro Cadaveric Experiment

가상 생체외 사체 실험용 경추 다물체 동역학 모델 개발

  • Lim, Dae Seop (Dept. of Mechanical Engineering, Kyung Hee Univ.) ;
  • Lee, Ki Seok (Division of Mechanical & Automotive Engineering, Kongju Nat'l Univ.) ;
  • Kim, Yoon Hyuk (Dept. of Mechanical Engineering, Kyung Hee Univ.)
  • 임대섭 (경희대학교 기계공학과) ;
  • 이기석 (공주대학교 기계자동차공학부) ;
  • 김윤혁 (경희대학교 기계공학과)
  • Received : 2012.08.14
  • Accepted : 2013.07.19
  • Published : 2013.10.01
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Abstract

In this study, a multibody dynamic model of the cervical spine was developed for a virtual in-vitro cadaveric experiment. The dynamic cervical spine model was reconstructed based on Korean CT images and the material properties of joints and soft tissue obtained from in-vitro experimental literature. The model was validated by comparing the inter-segmental rotation, multi-segmental rotations, load-displacement behavior, ligament force, and facet contact force with the published in-vitro experimental data. The results from the model were similar to published experimental data. The developed dynamic model of the cervical spine can be useful for injury analysis to predict the loads and deformations of the individual soft-tissue elements as well as for virtual in-vitro cadaveric experiments.

본 연구에서는 가상 생체외 사체실험을 수행할 수 있는 경추 다관절 동역학 모델을 개발하였다. 평균크기 한국인 의료영상과 관절 및 연부조직의 물성 정보를 기반으로 하여 경추 동역학 모델을 개발하였다. 개발된 모델의 검증을 위하여 경추 단분절 및 다분절 모멘트-각도 관계, 인대 하중 및 후관절 접촉력 등을 문헌의 사체실험 결과와 비교한 결과 매우 유사한 경향을 확인하였다. 본 연구에서 개발된 경추 동역학 모델은 앞으로 경추 사체실험 연구 뿐만 아니라 자동차 충돌시 경추 상해 분석 등의 다양한 경추 생체역학 연구 연구에 활용될 수 있을 것이다.

Keywords

References

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