查询词典 finite element method

In this dissertation, the probabilistic seismic response of liquefiable foundations and earth dams was carried out via stochastic finite element method under nonstationary seismic loadings.

本文运用随机动力有限元法，对可液化地基与堤坝在非平稳随机地震输入下进行了动力响应的可靠度分析。

Thethree-dimensional(3-D) finite element method was used to reconstruct the 3-D models of the mandibula , the firstinferior molar and the implant.

方法应用部分下颌骨 CT扫描图像建立下颌骨的三维有限元模型，根据测量数据建立种植体的三维有限元模型，建立半解剖式种植义齿牙冠的三维有限元模型

In order to solve the experimental problem of tricrystal,elastic stress distribution of copper tricrystal under monotonical loading was analyzed by finite element method,the shear stress on slip system in each grain was analyzed.

采用有限单元法计算三晶体在单向拉伸载荷作用下弹性阶段的应力场，分析了三晶体中各晶粒主滑移系上的切应力分布，计算结果表明，当晶界平行于加载轴时，该晶界对其两侧晶粒有很明显的作用，较大程度的改变晶粒滑移系的形式，而且作用程度要超过三晶交点的作用，倾斜晶界则没有明显的作用。

Methods:Based on the principle of finite element method and getting three-dimensional coordinates from lateral and frontal cephalometric X-ray films by Baunrind,the landmarks on cephalometric X-ray films were selected as nodes,by which the hard tissue was divided into four noded and pyramidal elements according to anatomic structures and their relationship.

基于有限元分析和Baunrind用头颅正、侧位定位片获取标志点三维坐标的原理，以硬组织标志点作为节点，按照解剖结构及结构间关系对硬组织进行单元划分。

It is shown that the finite element method can simulate the crash course and can make up the insufficiency of information obtained in expenments and simplified computations and the oversimplicity of the model

分析结果表明，利用有限元法可较精确的模拟碰撞过程，弥补了实验和简化计算获取信息量过少及模型过于简单的不足。

Based on the finite element method, a fresh and unique type of footbridge, a papilionaceous partial tied arch footbridge, was analyzed. The influences to the whole structure's stress behavior, displacements, vibration periods and mode shapes under parabola and arc arch axis were discussed. Different selections of support forms, such as longitudinal slide or longitudinal hinge, led to different behaviors on structure.

针对一种新型而特殊的蝶式部分系杆拱步行桥，基于有限元数值分析比较抛物线形拱轴线和圆弧形拱轴线对整个结构受力、变形、周期和振型的影响，揭示选用纵向滑动支座与纵向不动铰支座时给结构性能带来的不同结果，对结构拉索张拉力的控制给出建议。

Absctrct: Objective This study was designed to investigate the stress distribution in the surface of tooth and peridental tissues and the initial displacements of tooth in the maxillary under two orthodental simulating force rectangular archwire with T loop and II class elastic used clinically by the 3-D finite element method so as to clarify the biomechanism of orthodontic tooth movement and component of optimal orthodontic force system.

目的：通过有限元分析法比较两种工况下上颌各牙齿的位移趋势和牙根及牙周支持组织内的应力分布规律，为临床治疗中合理选用矫治力系统以便有效的控制牙齿移动类型提供可靠的理论依据。

In this paper, we used three di- mensional finite element method to calculate the stresses in the periodontium of abutments.

本研究采用三维有限单元法对固定桥基牙牙周膜内应力的分布规律进行了计算分析。

The spring back in the distortion process was predicted by finite element method, and the predicted results were analyzed to find out the reason lead to spring back, and so as to precompensate the spring back.

利用有限元仿真对其变形过程中的回弹进行预测，并对预测结果进行研究，找出回弹根源，从而对其回弹进行预先补偿。

Since the presence of a out coupling hole alters the transverse structure of the intra cavity light in a FEL oscillator ,the finite element method is used to the optical field equations and a good proximation is made for the out coupling process in the mirror,and then some numerical results are given.

针对孔耦合波导自由电子激光振荡器腔内光场横向特性，应用有限元法于慢变光场方程，并对输出腔镜上孔耦合过程加以较准确的描述，而后通过对数值结果的分析比较，说明这一模拟方法较好地描述了孔耦合引起的腔内光场横向结构的变化发展特性，改善了模拟结果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。