circular antenna

Approaches of representing circular arcs with NURBS of degree two;

基于NURBS的圆弧曲线表示方法

The practical way of representing circular arcs with quadratic and cubic NURBS is presented.

根据推导得到二次和三次ＮＵＲＢＳ表示圆弧曲线的实用方法，给出计算控制顶点及其权值的表达式，同时对该方法的适用范围进行了详细探讨，澄清了以往应用三次ＮＵＲＢＳ表示圆弧曲线的一点错误认识。

To the situation that the plane distribution of modern building is complicated and difficult to construct,application of circle and chord method in arc axis are introduced in combination with two engineering practices.

针对现有的建筑物平面布局越来越复杂、施工放线过程比较困难的现状 ,根据极坐标和弦线支距法的基本原理 ,结合两个工程实例 ,详细介绍了极坐标法和弦线支距法在具体放测圆弧轴线中的应用 ,为施工技术人员在施工过程中提供有益的参考借鉴。

In this paper,the forming principle & meshing characteristics of tooth of double arc gear with circular arc trace is presented.

本文研究了圆弧齿线双圆弧齿轮轮齿的形成原理和啮合特点，应用共轭齿面啮合原理和微分几何方法推导出其共轭齿面方程。

The way to process non-arc curves was discussed.

探讨了常见非圆弧曲线的加工方法,并以椭圆及正弦曲线为例,叙述了在使用宏指令加工过程中坐标值的数据转换及程序编制。

The Rational Cubic DP and Generalized Ball Representation of Arc;

圆弧曲线段的有理三次DP及广义Ball表示

Effect of Central Angle and Bearing Arrangement on Bearing Reaction of Arc Curved Girder Bridge

圆心角及支座布置对圆弧曲线箱梁桥支座反力的影响

Principle of Interpolating Quadratic Curves of Circle Interpolator;

圆弧插补器插补非圆二次曲线的方法

The Research on Approximation Algorithm for NURBS Curves with Line and Circular Arc in NC;

NURBS曲线的直线与圆弧数逼近算法研究

An arc be a part of the circumference of a circle or other curved line

弧是圆周或曲线的一部分

An arc is a part of the circumference of a circle or other curved lines.

弧是圆周或曲线的一部分。

A circularity approach to the numerical control of the complex curvilinear machining;

圆弧逼近法实现复杂曲线的数控加工

Research on Dual-arc Fit for Non-circular Curves and its CNC Programming

非圆曲线的双圆弧拟合及数控加工的程序编制

The elliptic and parabolic arcs can be represented exactly by the CT-Bézier curve.

利用CT-Béz ier曲线能精确表示椭圆与抛物线弧。

Bézier Curve Offset Based on Circular Arc Approximation

基于单位圆弧段逼近的Bézier曲线等距线生成算法

In-Plane Nonlinear Theory and Elastic-Plastic Stability of Pined Circular Arches;

两铰圆弧拱非线性弯曲理论和弹塑性稳定

Discussion about the Continuity of Arc-shaped Curve of Ball-end Milling Cutting

等螺距圆弧形球头铣刀刃口曲线的连续性讨论

STUDY ON THE ASPHERIC CURVE ALGORITHM BASED ON THE BI-ARC STEP LENGTH FLEX NUMERICAL CONTROL INTERPOLATION

基于双圆弧步长伸缩数控插补非圆曲线算法的研究

Error Estimate on Similarity in the Replacement of Hyperbola by arc,in the Line of Intersection;

相贯线中用圆弧代替双曲线近似程度的误差估计

Basic Meshing Principle of Double arc Gear with Circular Arc Trace

圆弧齿线双圆弧齿轮的基本啮合原理

Abstract: We present a method of circular arc fragmented curve-fittingbased on least mean-square error rule in this paper.

文摘:提出了一种基于最小均方误差准则的圆弧分段曲线拟合方法。

general epicycloid circular arc spur gear

普通外摆线圆弧直齿轮

The ray paths are circles.

射线路径呈圆弧状。