1)arc spline圆弧样条
1.A new curvature-based algorithm in free-form curve fitting was proposed to fit a 2D NURBS profile with an arc spline,where a new form of curvature formula with matrix representation was also proposed,and then the arc spline tool path with G~(1) continuity was generated.给出了一种平面曲线轮廓的圆弧样条拟合及刀具路径生成算法,该算法面向零件轮廓的光顺性刀具路径生成,通过应用曲线的曲率关系,对以NURBS表示的被拟合自由曲线按参数递增的方向用G1连续的圆弧或直线段逐段拟合,并生成相应的圆弧样条刀具路径,从而实现零件曲线轮廓表面的光顺加工。
2.An algorithm for data approximation with global optimal biarc spline is presented in this article.提出了用整体最优双圆弧样条拟合离散数据点的算法。
3.This paper presents a new spline──arc spline.本文介绍了一种新的样条曲线──圆弧样条，在解求其平行线时可能发生的＂小弧＂现象，需专门程序处理。
英文短句/例句
1.Arc Spline Tool Path Generation for Triangular Mesh Surface Machining三角网格表面数控加工圆弧样条刀轨研究
2.Arc Spline Interpolate Based on Constrained Method圆弧插值样条的约束生成方法及其应用
3.Analysis on an Error of Data Sampling Circular Interpolation一种数据采样法圆弧插补误差的分析
4.Research on Working Capacity of the Double Circular Arc Gear Drive under the Abnormal Working Conditions;非常规条件下双圆弧齿轮传动工作能力研究
5.Transmission Analysis of an Arc Teeth Synchronous Belt Considering the Complex Contact Conditions复杂接触条件下圆弧齿同步带啮合传动分析
6.Study on the Data Sampling with Arc Interpolation Algorithm Based on Parameter Equation基于参数方程的数据采样圆弧插补算法
7.The working condition of circular-arc-tooth-trace (CATT) cylinder gear has certain effect on the contact zone between its tooth flanks.外部条件对圆弧齿线圆柱的齿轮的齿面接触区产生一定影响.
8.circular tooth and cylindrical worm reducer圆弧齿圆柱蜗杆减速机
9.diameter of root circular-arc center circle齿根圆弧中心圆直径
10.diameter of tip circular-arc center circle齿尖圆弧中心圆直径
11.diameter of top circular-arc juncture circle齿顶圆弧衔接点圆直径
12.diameter of tip circular-arc juncture circle齿尖圆弧衔接点圆直径
13.diameter of root circular-arc juncture circle齿根圆弧衔接点圆直径
14.Study of Data Reduction of B-spline Curves and Disk B-spline Curves;B样条曲线和圆域B样条曲线数据缩减的研究
15.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
16.The area enclosed by two radii at a45= angle and the intersected arc.八分圆一个被两条成45°角的半径及与之相交的弧所包围的区域
17.The plane area bounded by such an arc and two perpendicular radii.四分之一圆，扇形体由九十度弧与两条垂直的半径围成的平面图形
18.Bending and cutting automatically avoid the connection, the roundness, automatically cut after bending.折弯和切割时自动避让铝条之间连接处，圆弧处，折弯后自动切割。
相关短句/例句
Circular-arc spline圆弧样条
1.Building on mathematical theories of calculation geometric and function approaching method, circular-arc spline fitting and biarc fitting are gived for tabulated curve, circular-arc spline fitting is invariant in geometry , it is simple and accurate than other kinds of spline curve in calculation.文章从计算几何、函数逼近论等数学理论出发,对列表曲线进行了圆弧样条拟合和双圆弧拟合。
2.Based on the fitting programming for non- round curve and tabulated curve and the application of numerical control processing,circular-arc spline function fitting and biarc fitting are effective ways of solving the problem of non- round curve fitting and tabulated curve fitting.在对非圆曲线和列表曲线拟合编程及应用于数控加工实践的基础上,提出了圆弧样条函数拟合和双圆弧拟合是解决非圆曲线和列表曲线拟合的有效途径。
3)biarc spline双圆弧样条
1.After analyzing profoundly the function and its DXF group codes of various kind of spline curves in AutoCAD software as well as programming verification based on object ARX development environment, this paper finally reversed their developing technique and mathematic models of biarc spline, B-spline and NURBS(non-uniform rational B-spline) curve in AutoCAD software.通过对AutoCAD软件中各类样条曲线的功能及其DXF组码深入分析,并用object ARX二次开发环境进行编程验算,反求出了AutoCAD中的双圆弧样条曲线、NURBS样条曲线以及B样条曲线的具体实现技术及数学模型,并对AutoCAD环境下各类样条曲线的数控加工编程进行了讨论。
4)arc spline curve圆弧样条曲线
5)circular arc spline in the three-dimensional space空间圆弧样条
6)Biarc-arc B-spline双圆弧B样条
延伸阅读
B样条曲面B样条曲面B-spline surface B yangtiao qumianB样条曲面(Bsp一ine surface)用分段B样条多项式函数及控制点网格定义的面。基于B样条曲线，可以得到B样条曲面的表示式。给定(m+1)(n十l)个空间点列凡(i=0，1，…，m，]=0，1，…，n)，则s(二，w)一艺艺尸。从，*(。)凡，，(w)，该二0少=O u，功任[0，1」定义了kXz次B样条曲面。式中从，*(u)和凡，，(w)分别是k次和l次的B样条基函数，由凡组成 的空间网格称为B样条曲面的控制点网格。上式 也可写成如下的矩阵式称(u，二)二认呱几M王w王，y任[l，。+2一划 z任[l，n+2一z〕，u，wC〔O，1」式中y，z—表示在u，w参数方向上曲面片的 个数。 Uk=[。‘一‘，uk一2，…，u，1〕， 钱二仁砂一’，砂一2，…，w，1〕， 凡，二氏，i任[y一1，y+k一2〕， ，任仁z一1，z+z一2] 凡是某一个B样条面片的控制点编号。最常用的 是二、三次均匀B样条曲面的构造。 (1)均匀双二次B样条曲面 已知曲面的控制点巧(i，]=o，1，2)，参数u、 二，且O镇u，w簇1，k=l=2，构造步骤是: ①沿w(或u)向构造均匀二次B样条曲线，即 有 ，「‘一“P0(w，一L矿“」[一::侃同哪 WMs经转置后尸。(w)=「尸oo尸。，尸。2〕磷wT;同上可得P，(二)=[尸，。尸，，尸，2」M五WT pZ(二)=[pZ。p21 p22]M百wT ②再沿u(或w)向构造均匀二次B样条曲线，即可得到均匀双二次B样条曲面。 ，L 11﹁.!一|到泊恤、、/)pp(w嘿的嘿编s(u，w)二UM日(w T W TB M翻川州护P PP=UM白 匕PZo P21简记为s(u，二)二〔侧砂呵百wl (2)均匀双三次B样条曲面 已知曲面的控制点八(￡，j=o，1，2，3)，参数u，二且“，w任【0，1]，构造双三次B样条曲面的步骤同上述，其矩阵形式是 S(u，w)=L时正声吸至百wT， 门几创川川旧洲翻叼--302 1222犯尸尸尸P尸尸尸尸尸冲尸峥 一一 P月J月j 3一6，l八、︶n”4.内J，1卜|匡IL 1一6 一一 姚双三次B样条曲面如图1所示。图1双三次B样条曲面
