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标准步态下骨盆三维有限元模型构建及其生物力学意义
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作者：汪光晔，张春才，许硕贵，任可
【关键词】 骨盆；三维有限元；髋臼作用力；骨盆肌肉收缩力
Threedimensional finite element pelvic modeling during standard gait and its biomechanical significances
【Abstract】 AIM: To construct a threedimensional (3D) finite element pelvic model which includes both 3D pelvic muscle and acetabular contact forces during standard gait. METHODS: A normal pelvis from an adult male subject was scanned by CT and the images of every crosssection were obtained. A pelvic model including both threedimensional pelvic muscle and acetabular contact forces during standard gait was constructed with PATRAN 2005R2 software. RESULTS: The constructed 3D finite element pelvic model clearly reflected the real pelvic anatomy and biomechanical behavior, especially the muscle force and hip contact force. The model was divided into 113 028 nodes and 137 524 units. CONCLUSION: The construction of 3D finite element pelvic model provides basic data which are critical for accurately modeling either normal loads or stresses and strains, or the effects of abnormal conditions.
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