流体动力学网格划分技术在骨骼有限元建模中的应用
发布时间：2018-09-10 17:00
【摘要】：目的研究一种高质量、高效率的骨骼分网方式。方法结合骨结构的特点,将流体动力学(computational fluid dynamics,CFD)的分网方法引入到骨生物力学的网格划分中,用六面体单元模拟皮质骨,四面体单元模拟松质骨。结果采用CFD网格划分技术能够划分出高质量的六面体单元,并且较好地模拟骨骼的结构特征,可以实现计算机自动分网,分网花费时间约为传统分网方法的1/5,有限元模型计算结果基本符合尸体实验测量值。结论CFD网格划分技术可应用于骨生物力学领域中,为复杂人体骨骼的重构探索了一条有效途径。
[Abstract]:Objective to study a high-quality and high-efficiency bone separation method. Methods according to the characteristics of bone structure, the method of hydrodynamic (computational fluid dynamics,CFD was introduced into the meshing of bone biomechanics. The hexahedron unit was used to simulate the cortical bone and the tetrahedron unit to simulate the cancellous bone. Results the high quality hexahedron unit can be divided by using CFD mesh division technique, and the structural characteristics of bone can be simulated well, and the computer automatic network division can be realized. The time of the subnet is about 1 / 5 of that of the traditional method, and the calculated results of the finite element model are basically in accordance with the measured values of the cadaver experiment. Conclusion CFD mesh generation technique can be used in bone biomechanics and provides an effective approach for the reconstruction of complex human bones.
【作者单位】： 北京工商大学材料与机械工程学院;中国中医研究院望京医院中医正骨技术北京市重点实验室;
【基金】：国家自然科学基金项目(81173279)
【分类号】：R318.01
本文编号：2235063
[Abstract]:Objective to study a high-quality and high-efficiency bone separation method. Methods according to the characteristics of bone structure, the method of hydrodynamic (computational fluid dynamics,CFD was introduced into the meshing of bone biomechanics. The hexahedron unit was used to simulate the cortical bone and the tetrahedron unit to simulate the cancellous bone. Results the high quality hexahedron unit can be divided by using CFD mesh division technique, and the structural characteristics of bone can be simulated well, and the computer automatic network division can be realized. The time of the subnet is about 1 / 5 of that of the traditional method, and the calculated results of the finite element model are basically in accordance with the measured values of the cadaver experiment. Conclusion CFD mesh generation technique can be used in bone biomechanics and provides an effective approach for the reconstruction of complex human bones.
【作者单位】： 北京工商大学材料与机械工程学院;中国中医研究院望京医院中医正骨技术北京市重点实验室;
【基金】：国家自然科学基金项目(81173279)
【分类号】：R318.01
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