目的：通过建立有限元模型，探讨按扣式和键槽缓压式两种精密附着体修复下颌磨牙游离缺失的应力分布情况。
Objective:The purpose of this study was to analyze the force system of different precision attachment in mandible distal-extension edentulous by the finite-element model.
以直齿圆柱齿轮为研究对象，重点介绍了如何利用CATIA对其进行参数化建模及通过图形数据转换接口导入到ANSYS中建立有限元模型。
Taking the spur gear as study object, this article introduces the method of establishing the parametric model in CATIA and transmitting it into ANSYS by graphic data transformation interface.
通过有限元分析方法，建立有限元分析模型，进行优化设计。
The FEM(Finite Element Model) analysis was used in design of the target chamber in order to optimize the mechanical design of the vacuum cone and the final optical system.
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