曲率半径

Now the feasibility of applying OAF algorithm to measure the radius of curvature of mini-sphere is verified.

于是，如何测量这些元件球形端面的曲率半径就成了一项重要课题。

The results show that the seismic response of curved beam bridge and the influence of curvature radius can be reduced by using lead rubber bearing.

结果表明：铅芯橡胶支座不仅可以有效地降低曲线梁桥的地震响应，还有助于减少曲率半径对曲线梁桥地震响应的影响。

Fig.7shows the comparison of radius of curvature and cross-sectional deformed shape between the experiment and FE simulation.

图7所示为曲率半径和横截面形状在试验和有限元模拟中的比较。

Key points in connection with the design of the stabilizer bar were presented also.Finally the methods of determination of the radius of curvature of st...

还提出了横向稳定杆的若干设计要点，并介绍了根据横向稳定杆的应力有限元分析结果确定其弯曲处曲率半径的方法

First, a smooth curve is obtained from the data by curve fitting with the method of non-linear least squares fit. Then the tangent vector and the radius of curvature of each point on the curve can be calculated for the error evaluation. With the fitted curve, the focusing state of the aspheric lens can be obtained by the method of ray tracing.

主要过程为首先采用非线性最小二乘拟合的方法进行曲线拟合，并计算出曲线上各点的切矢量和曲率半径，分析它们的误差，最后对拟合后的曲线用光线追迹的方法得到非球面镜的聚焦情况。

The methods above are used in practical data-processing. The errors of the tangent vector, the radius of curvature and the focusing are obtained through curve fitting and ray tracing. Finally, the charts are ploted by the matlab emulation.

将以上方法用于实际数据的处理中，对一组透镜表面数据进行拟合、分析，最终得出透镜的表面形状误差、各点的切矢、曲率半径误差以及光线的聚焦误差，并用matlab仿真出曲线图。

Through the new research methods, this thesis has made the following contributions in this field: 1. For the first time the curvature radii and relative angles of a planar continuous curve at discrete points are chosen as local parameters to represent the curve, which reflect clearly the local geometrical characteristics of the curve and are easy to be dealt with.

借助于新的研究方法，本文在这一领域作出如下贡献：（1）首次提出用曲线上离散点处曲率半径和相对转角作为局部参数表示平面连续曲线，直观地反映曲线各个局部的几何特征，且便于曲线的修改和变换，并通过机构运动分析，快速求出机构轨迹的这两个局部参数。

The effects of curvature radius R of the cylindrical shell with circumferential semielliptical surface cracks on stress intensity factors K_Ⅰ are investigated.

本文探讨了含周向内、外半椭圆表面裂纹圆柱壳体的曲率半径对其应力强度因子K_1的影响。

Using staircase concatenation method SCM,the optimum coupling conditions were achieved for wedge-shaped fiber wedge angle,cylindrical endface lens curvature radius,semimajor axis of planar lightwave circuit elliptical field,aspect ratio of planar lightwave circuit elliptical field,misalignment tole.

在多量子阱-平面光波光路前置模斑转换器和不加模斑转换器的情况下，用阶梯串联法数值模拟并优化设计了楔形光纤-平面光波光路间最佳耦合参量：楔形光纤楔角45°、端面圆柱透镜曲率半径2。

At present, the measurement instrument of spherical curvature is developing towards miniaturization, automation, modular, and high-precision direction.

目前，球面元件曲率半径的测量仪器正在向着小型化、自动化、模块化、高精度的方向发展。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。