基于逆向工程人体股骨建模及有限元分析  

3D Reconstruction and Finite Element Analysis of the Femur Based on Reverse Engineering Technique

作　　者：赵海芳[1] 徐青青[1] Zhao Haifang;Xu Qingqing(Mechanical and Electrical Engineering College of Suqian University,Jiangsu Suqian 223800)

机构地区：[1]宿迁学院机电工程学院,江苏宿迁223800

出　　处：《南方农机》2022年第21期129-132,共4页

基　　金：宿迁市科技计划项目“基于快速原型制造技术的人体下肢骨骼模型修复及生物力学分析”(Z2020060);重特大工程高性能输油管道控制阀门的关键技术研究(Z2020126)。

摘　　要：课题组首先使用医学图像处理软件Mimics 20.0和逆向建模软件Geomagic Design相互配合进行骨骼重建;然后通过Mimics成功构建骨折的股骨三维模型,再用逆向工程软件进行多边形的修复并转换成NURBS曲面;最后通过Ansys软件对骨骼模型进行等效应力分析。仿真结果表明,当载荷增加,骨应力增加,由此可得,股骨生物力学特性是线性变化的。该结论可为后续数值模拟计算提供依据,并为临床医学实验与计算机反向工程软件的结合提供参考。Firstly,the research group used the medical image processing software Mimics 20.0 and the reverse modeling software Geomagic Design to cooperate with each other for bone reconstruction.Then the 3D model of femur fracture was successfully constructed by Mimics.And reverse engineering software was used to repair polygons and transform them into NURBS surfaces.Finally,the equivalent stress of the bone model is analyzed by the Ansys software.The simulation results show that when the load increases,the bone stress increases.From this,it can be concluded that the biomechanical characteristics of the femur are linear.This conclusion can provide a basis for the subsequent numerical simulation and provide a reference for the combination of clinical medical experiments and computer reverse engineering software.

关 键 词：CT断层图像 股骨 逆向工程 有限元分析 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]