人工椎间盘的拓扑优化探讨--正压条件下人工椎间盘有限元优化分析

目的：研究人工椎间盘力学结构特点，探讨改进设计优化结构的依据。方法：在用有限元法进行正压下力学分析的基础上，对模型不同构件进行拓扑优化分析。结果：获得正压下假体模型主应力，作用力及支座反力的特点；指明拓扑优化的几何区域。结论：人工椎间盘的设计改进要在相关力学分析的基础上进行；通过优化分析既指明了假体结构上的重要区域，也显示出模型不同空间位置的可优化程度，为改进设计提供初步参考依据。有限元优化设计是假体研究，设计中经济有效的辅助方法。

A Topological Optimization of Artificial Intervertebral Disc--Finite Element Design Optimization in Axial Compression Mode

A study using Finite-element analysis to optimize　the design of artif icial lumbar intervertebral disc and evaluate its mechanical properties. The thr ee-dimensional solid model was built according to the geometry of the prosthesi s, and its responses and results of optimization analysis were predicted in axia l compression mode. Optimization analysis is a economical and effective techniqu e considering the mechanical properties in research and design of the prosthesis .