發(fā)布時(shí)間：2018-09-10 17:00

【摘要】：目的研究一種高質(zhì)量、高效率的骨骼分網(wǎng)方式。方法結(jié)合骨結(jié)構(gòu)的特點(diǎn),將流體動(dòng)力學(xué)(computational fluid dynamics,CFD)的分網(wǎng)方法引入到骨生物力學(xué)的網(wǎng)格劃分中,用六面體單元模擬皮質(zhì)骨,四面體單元模擬松質(zhì)骨。結(jié)果采用CFD網(wǎng)格劃分技術(shù)能夠劃分出高質(zhì)量的六面體單元,并且較好地模擬骨骼的結(jié)構(gòu)特征,可以實(shí)現(xiàn)計(jì)算機(jī)自動(dòng)分網(wǎng),分網(wǎng)花費(fèi)時(shí)間約為傳統(tǒng)分網(wǎng)方法的1/5,有限元模型計(jì)算結(jié)果基本符合尸體實(shí)驗(yàn)測(cè)量值。結(jié)論CFD網(wǎng)格劃分技術(shù)可應(yīng)用于骨生物力學(xué)領(lǐng)域中,為復(fù)雜人體骨骼的重構(gòu)探索了一條有效途徑。
[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.
【作者單位】： 北京工商大學(xué)材料與機(jī)械工程學(xué)院;中國(guó)中醫(yī)研究院望京醫(yī)院中醫(yī)正骨技術(shù)北京市重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(81173279)
【分類號(hào)】：R318.01

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