如此，既能与边界单元几何形状基本拟合，又能高精度地模拟裂纹尖端附近位移和应力变化规律，并提高计算效率。
So such, both shape consistent with boundary element geometrical shape, and simulate crack tip close-by variety law of stress and strain with higher precision, and enhancing calculative efficiency.
本文重点论述等间距直线逼近及过两已知节点与两节点半径均值圆弧拟合技术的基本原理以及误差分析方法。
This paper focuses on the presentation of the basic principles and error analysis of equal intervals linear approaching and average radius arc matching technique.
研究了基于齿轮测量中心检测凸轮的基本原理，并解决了测量过程中凸轮轮廓线拟合、测头控制策略和补偿等问题。
This paper studies the basic principle of detecting cam based on the Gear Measuring Center, and solves such key problems as cam contour matching, compensation and controlling strategy for the probe.
本文对铁心的基本磁化曲线采用了拟合的方法。
In this dissertation fitting method is used in forming the basic magnetization curve of the iron core.
简要介绍了转换GPS高程的二次曲面拟合法，以及神经网络BP算法的基本结构和数学公式。
The conicoid fitting method used for transforming GPS elevation, and the basic structure and mathematic formulas of BP algorithm of neural networks are introduced briefly in this paper.
曲线拟合是实验数据处理的基本方法之一。
Curve fitting is one of the basic methods in experimental data processing.
本文首先阐述了四次多项式拟合的基本原理以及精度评定方法，然后具体算例，实际计算分析了此种拟合方法的精度。
Firstly, the author discusses the theory of the fitting method and precision estimate, and then analyzes the precision through calculating a practical example.
通过对样本进行曲线拟合分析，得出与实际基本一致的应力集中系数变化规律，从而证明ANSYS可以辅助实际工艺的优化。
After curve fitting analysis to the sample, obtained the practical changing law of stress concentration coefficient. Thus ANSYS can assist perfection of practical technology.
已有的配气凸轮实测升程数据的优化拟合研究基本上都是针对对称型配气凸轮展开的。
Some optimum fitting methods for treating the measured lift data of the symmetrical CAM profile are presented in the previous decades.
第三章介绍了数学建模的基础理论，主要介绍了插值和曲线拟合的基本知识。
The third chapter introduces the basic theory of mathematical modeling and introduced by interpolation and curve fitting knowledge.
并为了求得模型中的基本组成因素——土体刚度，提出有限元-曲线拟合法。
A finite element-curve fitting method for determining the rigidity of back filling soil, which is a basic component factor of the model, is also given in this paper.
从正交多项式的拟合出发，给出了回归滤波器抑制地物杂波的基本原理及其滤波实现过程。
From the orthogonal polynomials fit, this dissertation gives the basic theory of the regression filter for ground clutter suppression and the filtering process using a regression filter.
文摘：已有的配气凸轮实测升程数据的优化拟合研究基本上都是针对对称型配气凸轮展开的。
Abstract: Some optimum fitting methods for treating the measured lift data of the symmetrical CAM profile are presented in the previous decades.
介绍联系拟合优度与模型复杂性测度的一种模型选择准则—信息复杂性(ICOMP)准则的基本原理。
A rationale for model selection criteria-informational complexity (ICOMP) criteria, that combine a badness-of-fit term with a measure of complexity of a model, is introduced.
对实验数据进行拟合发现，不管是纯组分还是混合体系中，气体的拉曼位移基本上是随压力增加呈一级指数递减。
The fitting of the experimental data shows that all Raman shifts decrease by one order exponential with increasing pressure, no matter the material is pure gas or mixtures.
结果表明，该方法计算简单，以较少的关键点实现了对向量字轮廓的较好拟合，基本保持了字形特征。
The result shows that this method is very simple and can make better approach of vector contour character with less critical point, and it also can keep the character of vector contour characters.
该方法要求输入反射波经过动校正拉平后的CDP道集，以便采用边剔除边拟合的方法，使多次波及随机噪声基本上得到克服。
The method needs NMO-corrected CDP gathers so that deletion and fitting can be simultaneously performed to essentially remove multiples and random noises.
拟合摄像中心的位置函数和摄像平台的姿态函数是机载三线阵CCD摄影测量的最基本问题。
The method for fitting the position of the camera center and the attitude functions is basic for image georeferencing.
采用MATLAB曲线拟合工具箱对数据集进行拟合处理，可以快速地在简单易用的环境中实现许多基本的曲线拟合。
Using MATLAB toolbox of curf fitting to deal with data sets can quickly in easy-to-use environment to realize many basic curve fitting.
存在一类特殊情况，当入射波前的零点恰好通过各变形镜所在位置，补偿拟合基本失效，应注意避免。
A case should be a - void when the zero positions of incident wavefront are concurrent with actuator that causes failure of compensation.
结果表明：12个农艺性状的遗传基本符合双基因工作六参数模型或部分拟合模型。
The results showed the genetic model of 12 agronomic traits were fundamentally fitted for 6-parameter model.
结果表明，该模型具有良好的曲线拟合特性，计算结果与实测值基本吻合。
The results show that the model has good characteristic in imitating curves, and the predicted results are in good agreement with the experimental values.
本研究初步验证了所拟合出的塑盘旱育抛栽基本苗公式的正确性。
The research primarily validated the correctness of the formulas of the DPT with scattered-planting in double-season rice.
实验结果与理论拟合结果基本符合。
The experimental results coincide with the theoretical calculations.
实验结果与理论拟合结果基本符合。
The experimental results coincide with the theoretical calculations.
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