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기능기반 형상변형기술을 응용한 환자맞춤형 근골격 모델의 보행패턴 예측에 관한 연구
박병건(Byoung-Keon Park),구본열(Bon-yeol Koo),박은주(Eun-joo Park),체재욱(Jae-wook Chae),이순혁(Soon-Hyuk Lee),김재정(Jae-Jung Kim) (사)한국CDE학회 2012 한국CDE학회 논문집 Vol.17 No.6
The configuration of a musculoskeletal (MS) system is closely related to the individual motions of the human body. Many researches have been focused on evaluating the associations between the MS configuration and the individual motion using patient-specific MS models, but it still remains a challenging issue to accurately predict the motion by differed configurations of the MS system. The main objective of this paper is to predict the changes of a patient-specific gait by altering the geometric parameters of the hip joint using function-based morphing method (FBM). FBM is suitable for motion analysis since this method provide a robust way to morph a MS model while preserving the biomechanical functions of the bones. Computed-muscle control technique is used to calculate the muscle excitations to reproduce the targeted motion within a digital MS model without the motion-captured data. We applied this approach to a patient who has an abnormal gait pattern. Results showed that the femoral neck length and the angle significantly affect to the motion especially for the hip abduction angle during gait, and that this approach is suitable for gait prediction.
이세훈(Se-Hoon Lee),이영신(Young-Shin Lee),최영진(Young-Jin Choi),이재옥(Jae-Ok Lee),최의중(Eui-Jung Choi),체재욱(Je-Wook Chae) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
On the human-rifle system, the human body is affected by the firing impact. The firing impact will reduce the firing accuracy and change the initial shooting posture. Therefore the study of biomechanical characteristics using human-rifle modeling and numerical investigation is needed. The muscle-skeleton model is developed by finite element method using beam and spar elements. In this study structural analysis has been performed in order to investigate the human body impact by firing of 5.56㎜ small caliber machine gun. The firing experiments with stand shooting posture performed to verify analytical results. The result if this study shows analytical displacements of the human-rifle system and experimental displacements of the real firing. As the results, the analytical displacement and stress of human body is presented.