查询词典 finite difference approximation

The nonlinear finite element models are also used to analyze the hysteresis behavior of the joints under reversed cyclic loads using ANSYS 8.0. The influences of the stiffener length and the infilled concrete are analyzed. Analytical results show that the stiffener length and the infilled concrete are critical for the joints. Furthermore, the skeleton curves of the finite element models are in good agreement with those of experiments.

运用ANSYS8.0对各节点试件在低周反复荷载作用下的滞回性能进行非线性模拟计算，分析内填混凝土、加劲肋长度等因素对节点受力性能的影响，结果表明：内填混凝土和加劲肋长度对节点受力性能的影响较大，有限元所得的骨架曲线与实测曲线吻合较好。

A detailed analysis on interference fit of hub was carried out by means of elastic mechanics and finite element method, in view of the above, the shortcomings of elastic mechanics method and the advantages of finite element method have been pointed out.

用弹性力学和有限元方法对轴毂过盈联接进行了详细的分析，据此指出了弹性力学方法的弊端和有限元方法的优势。

A three-dimensional finite element model corresponding to the animal model was established. The initial stress distribution was simulated by the Interference Fit Options in the finite element software.

另外，建立与动物实验相对应的有限元模型，利用有限元分析软件中的过盈配合方法计算骨-种植体界面的初始应力分布。

According to the standard and request of mechanical structures for electronic equipment tests, the finite element model of the electronic equipment cabinet was built by using the software of finite element analysis-ANSYS and simulated the tests of random vibrations by loading and calculating. The 3-D isopleths graph of deformation and stress of the cabinet was obtained. It could confirm the maximum of deformation and stress of the cabinet and probability of occurrence. Through more analysis of the frequency response curve reflected directly and clearly the deformation of the cabinet within the particular seismic frequency.

根据电子设备机械结构随机振动试验的标准和要求，采用有限元分析软件ANSYS建立电子设备机柜结构的有限元模型，通过加载求解对其进行随机振动试验的数值模拟，得到机柜有限元模型的三维变形和应力等值线图，进而确定机柜承受应力和变形的最大值及发生概率；通过对频率响应曲线的进一步分析，可以直观明了地反映出机柜承受一定频率范围地震下的变形情况。

The diffusion equation describing the light transportation in two dimensional two layers dental model with finite size is solved by finite element method,and the optical intensity distribution inside the dental tissueis is obtained.

利用有限元方法对光在二维牙齿双层有限尺寸模型中传输的扩散方程进行求解，获取了光能在组织体内部的分布情况，并对牙釉质和牙本质在不同光学参量模型下的光学穿透深度进行仿真分析。

Based on Galerkin finite element method, a new upwinding finite element numerical model suitable for modeling wind driven current in shallow lakes is derived by introducing streamline upwinding method and the selective lumping coefficient matrix scheme.

从控制方程组出发，以 Galerkin有限元法为基础，引入沿流线加权的权函数(沿流线加权的迎风有限元法)和选择性集中系数矩阵方法，推导、建立了一适合于浅水湖泊风生流计算的二维迎风有限元数值模型。

Static and dynamic characteristics of finite element analysis for the frame of open-back press are researched in this present dissertation using finite element analysis software COSMOS/Works, and some optimal designs of press frame structure have been recommended based on the results of analysis.

本论文以开式压力机机身为研究对象，利用有限元分析软件COSMOS/Works作为分析工具，进行有限元静、动态特性分析，并根据分析结果进行机身结构优化设计研究。

Using the finite element method and based on finite element simulation of profile extrusion process, the effect of local extrusion ratio, die land area and the distance between extrusion cylinder center and die opening center on mental flow velocity is studied. The deformation flow laws on profile extrusion process are obtained.

本文采用有限元方法，以型材挤压过程的有限元模拟为基础，研究了局部挤压比、挤压带面积和模孔距离对金属流动速度的影响，获得了型材挤压过程的变形流动规律。

Based on displacement-based finite element models proposed, a finite element method of steel and concrete composite beams considering slip between steel girder and concrete plate is presented.

摘要利用考虑滑移的钢－混凝土组合梁单元，建立了考虑滑移的钢－混凝土组合梁有限单元法。

In this article taking the attachment polysome contact key question of bearing which is used for some model solid propellant engine as the research background, based on the rolling bearing, applying the non-linear contact question in finite element method, the whole size 3D polysome non-linear finite element analysis under the work load is carried on.

本文以某型号固体火箭发动机轴承类接头多体接触的关键问题为研究背景，基于滚动轴承，采用接触问题的非线性有限元方法，在额定载荷下进行全尺寸三维多体非线性有限元分析。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！