查询词典 dimensional analysis

Methods : Electrometric method and three-dimensional finite element analysis were adopted to biomechanical test to the different fixation postures after scaphoid loins fracture.

电测法：选取成人男性尸体15只腕关节标本，分别制成骨折线为横型、桡斜型和尺斜型三组腕舟骨腰部骨折模型，然后模拟各种固定体位进行电测。

Objective: To get objective evidence of the optimal stress condition in broken ends of scaphoid loins fracture, to provide biomechanical basis for the clinical choice of the different fixation postures after scaphoid loins fracture and further to offer theoretical instructions for the treatment after scaphoid loins fracture, stress distribution and shift rules after three types of fracture in scaphoid loins (transverse fracture, radialis oblique fracture and ulnar side oblique fracture) were studied using electrometric method and three-dimensional (3-D) finite element analysis.

目的：运用电测法和三维有限元法，研究腕舟骨腰部三种类型骨折后腕关节在各种不同体位固定下骨折端的位移情况及其所受应力的分布和变化规律，从而得到骨折后良好折端应力条件的客观证据，为临床上腕舟骨腰部骨折后腕关节固定体位的选择提供生物力学依据，进而为腕舟骨腰部骨折后的临床固定治疗提供理论指导。方法：采用电测法和三维有限元实验方法进行生物力学测试。

Around TLDM, we discuss the definition, representation, calculation and reasoning of their relationships in two-dimensional space. TLDM also considers map design and spatial analysis based on equivalence class.

为此，本文提出并实现了一个面向对象的三级地图数据模型TLDM，并围绕该模型讨论了二维平面上地图对象以及空间关系的定义、表示、计算和推理、地图的构造和输出以及基于等价类的空间分析等。

Starting with the force balance for one particle near the membrane surface, two novel characteristic parameters Re_m and Eu_m have been deduced out by using dimensional analysis method, which are similar to traditional Reynolds number and Euler number in forms, but have special meanings for cross-flow microfiltration.

从近膜面微粒的受力分析出发，对错流微滤过程进行因次分析，获得两个与传统形式相同、但具有特殊意义的新特征量Eu_m和Re_m。

Firstly, according to electromagnetic field theory, the 2-dimensional (2-D) mathematical model of a three phase squirrel-cage Y802-2 induction motor is developed. Then general equations can be deduced from finite element discrete and functional analysis. The motor's 2D solving region of electromagnetic field is given based on the boundary conditions and assumption conditions of the squirrel-cage induction motor. Through finite element mothod and inner–outer convergence method, magnetic field distributions and magnetic forces of bars can be calculated in following rotor conditions: health rotor, one single broken bar, two adjacent broken bars, two broken bars with one good interval, two broken bars with two good interval and four adjacent broken bars.

本文首先根据电磁场理论建立Y802-2型三相笼型感应电动机二维电磁场的数学模型，并对其进行了有限元离散以及泛函分析，推导出总体方程；在基本假设和边界条件基础上，给出笼型感应电动机二维电磁场的求解区域，然后应用有限元并结合内外双收敛方法，对样机稳态运行进行数值计算，得出电机在转子完好、一根导条断裂、连续两根导条断裂、间隔一根两根导条断裂、间隔两根两根导条断裂及连续四根导条断裂六种情况下的磁场分布和导条所受电磁力的变化情况。

is applied to construct the three-dimension model for finite element analysis. Short circuit and open circuit of the field winding and the teeth and slots structure of the rotor are discussed. An appropriate three-dimensional mesh is made. The corner point problem of conductor is eliminated. Furthermore, a new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time.

在汽轮发电机失磁异步运行转子三维涡流场数值计算模型中，应用了〓法建立了三维有限元计算模型，考虑了转子绕组的开、短路状态及转子齿槽结构，形成了合适的三维剖分网格，解决了三维电磁场有限元计算中角点奇异的问题，创立了一种新的稀疏矩阵的存储格式以及基于该格式的预处理复数共轭梯度法从而减少内存开销和加快了求解速度。

The absorbing performance of one dimensional PML is theoretically analyzed and numerically simulated in view of the error caused by finite difference approximation, respectively, whose results show that this theoretical analysis can exactly indicate practical circumstances.

在计及有限差分近似造成的误差下，理论分析和数值模拟了一维理想匹配层的吸收性能，结果表明这种理论分析能完全反映实际情况。

Objective To establish three dimensional finite element model of the elbow joint, and to test its value in the analysis of stress distribution.

目的 建立肘关节三维有限元模型，并验证其在分析肘关节应力分布中的价值。

Thermal-structural analysis was performed for ultrasonic wire bonding by three dimensional finite element method.

用三维有限元方法对超声波线焊进行了瞬态的热-结构分析。

In this paper,based on the analysis of basic features of ground fissures in Xi an ,the numerical simulation of ground fissures in Xi an is made by using two dimensional finite element method.

本文在分析总结西安地裂缝基本特征的基础上，采用二维有限元法，对西安地裂缝进行了数值模拟。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我