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- In this paper, it has used three uniform B spline surface to construct the surface of the blade die cavity, and developed a CAD/CAM system of the blade die. 应用双三次均匀B样条曲面,对汽轮机导叶片锻模型腔表面进行曲面构造,据此开发了导叶片锻模CAD及其型腔表面CAM系统。
- NURBS Non Uniform Relational B Splines 非统一相关B样条
- uniform B spline 均匀B样条
- A method is proposed to approximate arbitrary curves by spline functions with parameter of non uniform path distance. 提出用非均匀自然路径距离参数的三次样条函数近似表示任意曲线。
- Curvature monotony condition Tor the quadratic rational B spline curves. 二次有理B样条曲线曲率单调条件
- An interpolation algorithm for Non Uniform Rational B-Spline (NURBS) curve to control redundancy error was proposed. 摘要提出了一种能有效控制冗余误差的非均匀有理B样条曲线插补算法。
- The mapping is the same in all the vases so that each vase model can go with 10 different textures and with different stretching (non uniform scale). 但是所有瓶子的制作过程是一样的,每个瓶子模型配合10种不同的纹理,然后进行不等比缩放。
- In the CAGD field, Coons surface, B spline surface and NURBS surface are mainly used. Coons类曲面、B样条曲面和NURBS曲面是CAGD中主要的曲面表达形式。
- This paper studies the method and process of interpolating the DEM based on rectangular grid with B spline and smoothing spline. 本文研究了B样条和磨光样条应用在基于矩形格网的DEM内插中的思想、方法及实现过程。
- The paper introduces a new way to calculate the structure of a given woven fabric on the basis of float combination with B spline curve funct. 本文根据浮长线对织物结构影响的原理,结合三次B样条函数,对机织物结构进行计算,根据计算结果可以得到模拟图像效果。
- The cross correlation analysis techniques on time domain to analysis the stimulated light curves of uniform and non uniform corona model and compares the stimulated results with the temporal property of Cygnus X 1 are employed. 利用时间域上的交叉相关分析技术对模型的模拟光变曲线进行时间分析 ;并与 Cyg X-1的观测分析结果进行比较 .
- In this article,the gray-scale image LOD scheme is realized by image meshing and B spline subdivision wavelet transform. 通过将灰度图像网格化,并在图像网格上进行B样条细分小波变换,实现了图像的LOD压缩算法。
- In the algorithm,non uniform meshes and three kinds of ABCs are adopted to reduce the order of the final sparse matrix equation,and compressed storage and fast iterative solver are applied to solve the sparse matrix equation. 在结构离散化过程中采用了非均匀网格剖分并且在网格截断边界上联合采用了三种吸收边界条件 ;以最大限度地压缩形成的稀疏矩阵的阶数 .;对稀疏矩阵方程采用压缩存储技术和快速迭代解法;以有效地减少所需内存和计算时间
- The more sophisticated nonlinear model of flight dynamics,which include non uniform inflow model,nonlinear aerodynamics of fuselage,rotor flap motion and forces coupling with the motion of helicopter body,is considered in inverse simulation. 逆仿真中采用了较为复杂的非线性飞行动力学模型 ;包括非均匀入流、机身非线性气动力以及包含机身运动耦合的旋翼挥舞运动与作用力模型 .
- This method combines the homomorphic filtering and B spline smoothing.Firstly, a coarse bias estimation is got by Gaussian homomorphic filtering on the corrupted image. 该方法将同态滤波和B样条平滑相结合,首先采用高斯同态滤波器对污染图像滤波,得到初步估计的偏差场;
- The plastic process analyses on uniform and non uniform cylindrical upsetting were made in detail on the basis of the principle of generalized variational inequality with friction. 基于摩擦约束广义变分不等式原理,对圆柱体均匀镦粗和圆柱体非均匀镦粗等金属成形工艺问题进行详细的塑性加工工步分析。
- Application of B spline and smoothing spline on interpolating the DEM dased on rectangular grid[J].Acta Geodaetica et Cartographica Sinica,2000,29(3):240-244. B样条与磨光样条在基于矩形格网的DEM内插中的应用[J].;测绘学报;2000;29(3):240-244
- The sensitivity analysis was developed using the rigid viscoplastic finite element method.The preform die shapes are represented by cubic B spline curves. 表示预锻模具形状的三次B样条曲线的控制系数用作设计变量。
- A new approach based on cubic polynomial and B spline interposition to rebuild the CAM generated tool path under real time condition is presented in the paper. 本文采用三次参数样条曲线和B样条曲线来实时重构CAM生成的走刀轨迹,以少量的数据点便能达到比直线和圆弧插补高得多的加工精度。
- NUMA Non Uniform Memory Architecture 非均衡存储器体系结构
