The optimization of fitting to the tire test data curves by Magic Formula is discussed, included the digitalization of tire test data curves, designing objective functions and optimization processes, etc. Finally the parameters in Magi...
作者介绍了采用MagicFormula建立轮胎模型的方法，包括试验曲线的样条化、优化目标函数的设计和拟合优化方法等，得到了MagicFormula轮胎模型中的各参数，为进一步对汽车操纵稳定性的仿真研究奠定了基础。
The paper discusses the use of Weibull distribution of three-parameter to describe the fatigue life of machine element, and proposes a new method to fitting R-S-N curves under certain confidence.
三参数威布尔分布置信限的确定和C─R─S─N曲线的拟合谈嘉祯，边新孝北京科技大学机械工程学院，北京100083摘要论述了利用三参数威布尔分布描述机械零件疲劳寿命，并在一定置信度下求R─S─N曲线的方法。
The following article mainly discusses the use of PC-1500 to fit the experimental data of fat and oil and autoplot the fitting curves.
本文利用PC—1500袖珍计算机对油脂实验数据进行了拟合处理和绘图输出。
From analysis and disposal of the interior ballistic fitting curves on the 76 kinds of service ammunitions for the guns, the Logistic experience formulae of interior ballistic curves for fuze design are obtained.
对76种制式火炮弹药内弹道曲线拟合结果进行分析和处理，得到具有普适意义的引信设计用火炮内弹道曲线的Logistic拟合经验公式。
The damage effective field of thermobaric explosive was evaluated. The damage radiuses of a series of charge mass were obtained by the fitting curves, and the TNT damage field equivalent were calculated.
用有效作用区威力评价法和公式计算了不同装药质量的毁伤半径，获得了有效作用区面积TNT当量。
With the fitting curves, the automatic welder, when in course of welding, can continuously change welding parameters based on the current welding position.
针对不同的管径，不同的壁厚，对管口进行合理的空间分段通过大量的试验，摸索出各段合适的曲型的焊接规范，通过计算机拟合，从而实现焊接过程中工艺参数的连续变化。
Its fitting curves are smooth, which overcome the burr phenomena of PI mode...
根据实验结果分析了极坐标的迟滞曲线和PI迟滞曲线的拟合误差，并进一步给出了拟合方差。
In computer vision and pattern recognition, Extraction of digital curves and Fitting is important and difficult.
在计算机视觉和模式识别中，数字曲线提取与拟合是一个重点和难点。
The peak overpressure, impulse, and its positive pressure time vs scaled distance fitting curves of blast wave and TNT, △p_m~(0.742)i_s~(0.258), and impulse equivalent have been obtained.
拟合了超压、比冲量、正压作用时间与对比距离的关系曲线，并计算了超压、冲量以及以Δp_m~(0.742)i_s~(0.258)为指标的TNT当量。
The analytical lines of the 9 elements determined and the analytical parameters of the determinations, including the requirements of sample preparation, and the fitting of calibration curves, were studied and optimized.
应用直读原子发射光谱法分析了锡锭中9种杂质元素，对各元素的分析线及测定的分析参数，包括试样制备的要求，校正曲线的拟合等进行了试验及优化。
Using VC++ 6.0 combined with UG secondary development, firstly the different section contour data is obtained by projection method, then the data of every contour is preprocessed and sorted, and then section contour curves are got by curve fitting, finally 3D model reconstruction is realized.
将VC++6.0与UG二次开发相结合，首先通过投影法获取不同截面轮廓数据，然后对各轮廓数据进行数据预处理并实现排序，再进行曲线拟合得到截面轮廓曲线族，最后实现三维模型重构。
The results shon that the Sloboda mathematical model have better precision for fitting of loadsettlement curves, and corresponding fitting equations can be used to forecast bearing capacity of DX piles.
结果表明，Sloboda模型对桩顶荷载-桩顶沉降曲线的拟合精度较高，拟合方程式能对支盘桩承载力进行预测。
Following, a experiment has been carried out, the incident waves with a frequency band of 200kHz-350kHz are used to the experiment, and a series of peak value-time curves are drawn each 10kHz, corresponding time are found through fitting peak value, thus the position of the defect is calculated accurately. The application of awl-shaped sensor head in the heat change water pipe experiment indicates that the ultrasonic guided waves may transmit nearly 50 meters in the pipe, which is not influenced by the elbows and makes it possible to test defects in long distance and large-scale. The water-load pipe experiment indicates that the displace and energy maybe leakage at the near-surface, which is significant for the further research.
而后，采用200kHz至350kHz频段的入射波进行了实验验证，并每隔10kHz绘出一条峰值一时间的曲线，通过拟合峰值点，找到对应的时间，从而准确的计算出了缺陷的所在；应用锥形探头的热交换水管的实验表明，超声导波可以在管道中传播了近50米的距离，且不受弯头的影响，从而使得长范围、大规模检测成为可能，水载管实验说明了离面位移和能量可能会发生泄漏的特性，为导波的深入研究和应用作了铺垫。
Numerical examples are given for fitting the numerically obtained stress-strain curves to a set of experimental results.
给出的数值计算例子计算了单轴压缩试验结果的参数辨识问题。
Using the technique, the peak overpressure vs scaled distance fitting curves of blast wave and TNT equivalent have been obtained.
在此基础上获得了各自的爆炸波峰值超压随传播距离的拟合曲线和 TNT当量比。
One of key problems of constructing parametric fitting curves is to compute a knot for each point.
构造参数拟合曲线的关键问题之一是为每个数据点指定一个参数值。
Carrying out a fitting to curves between rising height of capillary water and time with various functions, it found that fitting effect was best with secondary polynome regression equations under the log coordinate.
对毛细水上升高度与时间关系试验曲线用各种函数进行了拟合，发现毛细水上升高度与时间过程在对数坐标下用二次多项式回归方程进行拟合效果最好。
One is presented by using the matrix representation of subdivided Bézier curve and by minimizing the distance function defined between the original Bézier curves and the merged Bézier curve, the other is obtained by combining the fitting method of curves with the theory of the general inverse matrix.
一种方法是利用Bézier曲线细分后的矩阵表示，并根据所定义的待合并Bézier曲线与合并Bézier曲线之间的距离函数取最小值得到的；另一种方法是把曲线拟合方法与广义逆矩阵理论相结合得到的。
Due to the characteristics such as low image contrast, high background noise and different fringe density, the image has been preprocessed by enhancing, smoothing etc. Then fringe gray extremum curves have been extracted by two kinds of methods respectively on the basis of Yatagai and Haar dyadic wavelet. Also an improved Hilditch thin arithmetic, rotate filter and curve fitting have been used to trim the extremum curves. Finally, fringe level has been set. Coordinates grid has been built to calculate the node level and strain. The system has been developed by VC++ 6.0 under Windows XP plarform.
针对密栅云纹图像背景噪声大、对比度不高、条纹疏密度不同等特点，实现了图像增强、平滑滤波等预处理；运用基于Yatagai和基于Haar二进小波变换的两类方法分别实现了条纹极值线的提取，提出了改进的Hildith细化算法，运用旋转滤波法消除伪分叉点；根据物体内位移和位移分量的单值连续性，去除分叉短枝、连接断点进行极值线的处理，多项式拟和曲线，确定各条纹级数；利用虚拟网格法建立计算坐标系，求得网格节点级数，在数值位移场进行应变计算。
Based on the non-same step GM(1, 1) model, the fitting equation of Q-S curves of tension piles and compression piles was established.
通过非等步长GM(1，1)灰色模型，建立描述抗拔与抗压桩的荷载-位移曲线的拟合方程，并结合工程实际通过拟合方程曲线与静载实测曲线的对比，分析了灰色模型在抗压与抗拔桩中的适用性。