查询词典 spline

Based on the theory of B spline,this paper discusses the sufficient and necessary conditions of G 1 continuity between two patches of bi cubic tensor product non uniform B spline surfaces in a special type,and gives a kind of sufficient condition of G 1 continuity so as to satisfy the need of application.

依据有关B样条理论，研究了一种特定类型的双三次张量积非均匀B样条曲面间G1光滑拼接的充要条件，且给出了此种类型的两张双三次张量积非均匀B样条曲面间G1光滑拼接的一个充分条件，以满足实际应用的需

This paper discusses singularities, inflection points and convexity of FB-spline curves in terms of their control polygons, and gives the necessary and sufficient conditions for testing when FB-spline curves have one or two inflection points, or a cusp, or a loop, or none of the above points by the envelope theory and the topological mapping method.

文章利用包络理论和拓扑映射的方法，讨论了FB-样条曲线的奇拐点和曲线性质，并给出了依据控制多边形判断FB-样条曲线出现1个或2个拐点、1个尖点、1个二重点以及处处为凸的充分必要条件；最后给出了FB-样条曲线的奇点、拐点以及二重点在λ-μ平面上的分布图。

In order to make up the deficiency of ordinary trigonometric polynomial curves in aspect of shape adjustment, then in view of polynomial spline cannot represent some transcendental curves, a new kind of parametric trigonometric polynomial spline with a shape parameter is constructed by linear singular blending technique.

为了弥补普通三角多项式样条曲线在形状调整方面的不足，同时又考虑到多项式样条曲线不能精确表示一些超越曲线，我们利用奇异混合的思想构造了一种新的带有形状控制参数的三角多项式样条曲线。

The B spline and the NURBS spline functions commonly used in the electromagnetic scattering field are approximate splines, but they have to solve the control points and the numerical solution is unstable sometimes.

目前电磁散射几何建模常用的B样条和NUBRS曲面都是逼近样条，存在需要反求控制顶点，数值解有时不稳定的缺点。

According to the calculated result, the metal flowing law, von Mises stress and the formed outer diameter of involute spline were forecasted; also the errors between the simulation result and the object dentiform of involute spline were analyzed.

根据数值模拟的结果，讨论了齿形误差及其成因；揭示了滚轧过程中金属流动规律和应力变化情况；分析了冷滚轧前轴坯直径与成形后花键最大外径的关系，提出了轴坯直径的修改建议。

This paper uses cubic spline interpolation function, setting up a mapping between control inputs and control outputs directly based on the data of control input-output, and receives the control algorithm of cubic spline interpolative control for single variable and two variables to separately control the first order system and second order system.

本文利用三次样条插值函数，直接由控制输入输出数据对建立了控制输入与控制输出之间的映射关系，得到了一元三次样条插值控制算法和二元双三次样条插值控制算法，二者可以分别对单输入单输出系统和双输入单输出系统进行控制。

Our method can deal with the interpolation of single uniform B-spline curve and a mesh of nonintersecting or intersecting uniform B-spline curves.

被插值曲线可以是单条均匀B样条曲线，也可以是多条相交均匀B样条曲线。

Nominal Clearance is the actual space width of an internal spline minus the actual tooth thickness of the mating external spline.

理论侧隙：理论侧隙是内花键的实际齿槽宽减去与之相互配合的外花键的实际齿厚所得的值。

Nominal Clearance is the actual space width of an internal spline minus the actual tooth thickness of the mating external spline. It does not define the fit between mating members, because of the effect of variations.

理论侧隙：理论侧隙是内花键的实际齿槽宽减去与之相互配合的外花键的实际齿厚所得的值由于内、外花键在配合时会产生一定的公差，所以理论侧隙不能够用于确定相互配合的内、外花键之间的间隙

Visual and microcosmic analyses on the fracture of absorber spline outer canister for oil drilling stem(spline outer canister for short) were performed.

为查明某油田断裂的石油钻柱减震器花键体外筒的断裂原因，对其断口进行了宏观和微观分析，对断裂的花键体外筒材质进行了分析，对钻柱减震器的受力状态和主要结构进行了分析。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。