relative surface

It is also analyzed that the parameters of initial pressure angle and its increment may influence the relative curvature at the meshing point to become zero.

介绍了微段渐开线齿条齿廓形成原理及形成过程,建立了微段渐开线齿条齿廓的直角坐标方程,证明了影响齿廓弯曲程度的参数是基圆半径,影响啮合点相对曲率为零的参数是初始压力角和压力角增量,提出了需对这些参数进行优化设计并给出了优化计算结果。

If the relative curvature of a certain curve on the first control point and the direction angle of the first port’s tangent vector is given,here can get the whole curve by using the character of the port of quadratic uniform B-spline curve.

提出了一种二次均匀B样条插值曲线的构造方法,首先给定某一段曲线首点的相对曲率和该段曲线的首端切矢量的方向角,利用二次均匀B样条曲线的端点性质,求出其余各段曲线控制顶点,来生成整条插值曲线。

In this article the authors first put forward a few simpler and easier methods for calculation the evolute equation, the formula of relative curvature; then, discuss the methods for calculating the equations of the tangent line, the normal plane, the osculating plane, the binormal, and the rectifying plane; and finally popu.

文中给出了有关渐缩线方程 ,相对曲率计算公式的更简便的推导 ;讨论了如何才能很快地做出切线 ,法面 ,密切平面 ,副法线和从切平面方程的方法 ;还对有的习题进行了推广 。

With an analysis of the settlement, local inclination and internal force of the elastic foundation board on the non_uniform ground, the paper gives a description of the deformation feature of the elastic foundation board on the non_uniform ground.

通过分析非均匀地基上弹性地基板的沉降、相对弯曲及内力情况 ,提出了非均匀地基上弹性地基板变形和内力的变化特

By means of discussing plane symmetry that relates to point, curved surface and curve in a three-dimensional space, this paper gives a method to study point?curved surface?plane symmetric point on a curve?symmetric curved surface and symmetric curve equation.

讨论了三维空间中,点、曲面、曲线关于平面的对称问题,从而给出了求点、曲面、曲线关于平面对称的对称点、对称曲面、对称曲线方程的方法。

Study Mathematics-Optical Properties of the Rotating-Axisymmetric Surface

旋转轴对称曲面的数学-光学性质研究

On Pinching Theorem of Sectional Curvature on a Hypersurface with Constant Mean Curvature in Locally Symmetric Quasi-constant Curvature Space;

局部对称拟常黎曼流形中常平均曲率超曲面的截面曲率的Pinching定理

On Pinching Theorem of Sectional Curvature on a Hypersurface with Constant Mean Curvature in a Locally-Symmetric Space;

关于局部对称空间中常平均曲率超曲面的截面曲率的Pinching定理

Hypersurfaces with Constant Mean Curvature in Locally Symmetric Space;

局部对称空间中具有常平均曲率的超曲面

Compact Hyper-surface with Constant Mean Curvature in Locally Symmetric Manifold;

局部对称黎曼流形中的常平均曲率紧致超曲面

Application of the Symmetry in the Calculation of Curvilinear Integral and Surface Integral;

对称性在曲线积分和曲面积分计算中的应用

The application of symmetry to the calculation of curvilinear integral and camber integral;

对称性在曲线积分及曲面积分计算中的应用

Application of Odevity and Symmetry in Curvilinear Integral and Surface Integral;

奇偶性对称性在曲线积分和曲面积分中的应用

Compact Hypersurfaces with Constan Scalar Curvature in Locally Symmetric Manifold

局部对称空间中具有常数量曲率的超曲面

Estimation of Sectional Curvature of Riemann Symmetric Space SU(n)/SO(n);

Riemann对称空间SU(n)/SO(n)截面曲率的估计

Space-like Hypersurfaces in Locally Symmetric Lorentz Spaces

局部对称Lorentz空间中的类空超曲面

This is known as an isochromatic surface.

这样的曲面称为等色面

Symmetry of plane curve is important to function research.

平面曲线的对称性对于函数研究具有重要意义。

The problem of an elastic plane having symmetric parabolic crack is discussed.

研究含轴对称抛物线曲裂纹平面弹性问题.

The Research of Dimensional Conicoide by Using the Orthogonality of Real Symmetric Matrix;

用实对称矩阵的正定性研究空间二次曲面

Some Complete Space-like Hypersurfaces in Locally Symmetric de Sitter Space;

局部对称de Sitter空间中的一类完备类空超曲面

Sectional Curvature of Compact Minimal Submanifolds of Locally Symmetric Manifolds;

局部对称空间中的紧致极小子流形的截面曲率

Harmonic Maps with Potential and Hyper-surface in the Ricci Symmetric Riemannian Manifold

带有位势的调和映射和对称黎曼流形的超曲面