- 更多网络例句与边界曲面相关的网络例句 [注：此内容来源于网络，仅供参考]
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The quadrature formula about surface integral on any quadrilateral element is deduced by means of isoparametric transformation and bilinear interpolation.
通过对三维有界区域的边界曲面作四边形网格剖分，用有限元方法处理高斯公式中的曲面积分，由等参变换及双线性插值导出任意四边形单元上曲面积分的数值求积公式。
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On the basis of analysis and comparison of their strengths and weaknesses, each method can find its applied occasion. With energy method, we can conveniently control the precision of the objective surface and add boundary constraints for preserving the models global geometric continuity, but this method is very time-consuming.
其中基于能量原理的光顺方法能够方便地控制目标曲面的精度和边界条件，从而能够实现曲面模型的全局连续性，但是能量法的运算速度还有待提高；刚度调整法实现简单，但是生成的曲面的可编辑性较差；小波分解方法计算速度很快，能够有效地实现数据压缩，但是其逼近误差和边界条件却难于控制。
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When generating the first layer of elements, the nodes on the interior surface are generated by projecting the nodes on the exterior surface along the normal direction of the exterior surface onto the interior or surface.
将未划分区域的边界继续向内偏置，划分新的单元，和第一层划分时直接将外边界上节点向内投射不同，以后的内边界曲面上的节点和表面四边形单元是直接划分的。
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The concept and algorithm for nonsingular orientation-workspace of the platform at a certain position are proposed.
提出了该机构处于给定位置时的非奇异姿态工作空间概念及其算法，并以非奇异姿态工作空间边界曲面的最小内切球作为实际姿态工作空间，以该球半径大小作为衡量机构处于给定位置时的实际姿态能力的性能指标。
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The analytical equations of workspace boundary surfaces for the octahedron parallel machine tool and the new type of parallel machine tool are derived based on the forward displacement analysis. Based on it, the projection graphs of workspace boundary surfaces are drawn.
提出了并联机床工作空间分析的解析方法，得到了八面体并联机床和新型并联机床的工作空间边界曲面的解析方程，并在此基础上绘出了工作空间边界曲面的图形。
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At first, each surface is tessellated by subdividing all its bounding edges and joining the subdivision nodes with a regular array of isoparametric grids.
为使相邻曲面边界单元相容，即网格单元在相邻曲面边界处不会产生裂缝与覆盖，对多个裁剪参数曲面模型的网格剖
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Due to the irregular distribution of space mesh data, the contour of surface cannot be gained from coordinate of points directly. So a method to detect edges of triangular mesh surface is brought out in this passage.
由于空间网格数据分布不规则，不能从点的坐标直接得到曲面的边界，因此提出了一种空间三角网格曲面的边界提取方法，通过判断一个点的邻接点是否都能通过三角网格的边组成闭合曲线来获取边界点。
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Traditionally, a surface is usually scatted in an array of 3D data points which are topologically connected by rows and columns to form a rectangular mesh. This method can't meet the requirement of description and measurement for some complex surfaces. On the basis of tracing border points, a new method is proposed to deliver 3D data points of surfaces, which are topologically constructed with optimum rectangular and triangular mesh. In order to measure surface efficiently and safely with NC machine, an optimization of measurement paths is proposed to avoid interference between the measuring tool and the surface with holes. The curve design is the basis of surface modeling.
数控测量技术的发展为测量自动化、集成化、智能化提供了可能，而对于复杂曲面的自动测量规划则是测量技术中的难点问题，平行截面等数目测点分布和四边拓扑测点分布规划方法，不论在测点分布的合理性上还是在网格结构的优化方面，均难以满足形状或边界较复杂曲面的离散化描述和曲面造型的要求，为了实现任意拓扑曲面的自动测量，本文对复杂曲面的合理离散化描述和自动测量问题进行了研究，提出了基于边界跟踪、优化网格的测点自动分布规划和四边、三角混合网格的生成方法：同时对具有孔洞或测量干涉凸台等非完整曲面的测量路径优化问题进行了研究，提出了路径优化方法。
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Only with such characteristics, the movement equations can be expressed as matrices, and the idea of transforming the movement equations to the simplest form through a nonlinear transformation can be realized;(2) The form of Zi =Yi + YTH2i Y + Y7H3i Y(2)+ Y(2)T H4i Y(2)+ YTH5i Y(3) is adhibited in the nonlinear transformation, so that the multivalued problem caused by the nonlinear transformation is avoided, and the higher order transformation can be taken next;(3) The fourth order nonlinear transformation matrices H21,H31,H41 and H51 are derived, by which the original movement equations of electric power system is transformed to Jodan form in Z space;(4) By use of the fourth order nonlinear transformation, the approximate expression of the stability boundary is obtained, in Z space it is Z1= 0,in Y space it is Y1 + YTH21 Y + YTH31 Y(2)-i- Y(2) TH41 Y(2)+YTH51 Y(3)= 0;(5) The criterion used in this paper to judge whether the system critical unstable is simple and quick;(6) The method used in this paper is a direct method, and no need to construct an energy function.
正是由 于电力系统的运动方程具有这样的特性，才能写成矩阵的形式，通过非线性变换将电力系统的运动方程变换为最简单的线性形式的思想才能得以实现；（2）将通常运用于电力系统暂态稳定性分析的Normal Form变换的形式由 Yi＝ Zi＋ ZTh2riZ变形为 Zi＝ Yi＋YTH2iY＋YTH3iY（2）＋Y（2）TH4iY（2）＋YTH5iY（3），从而使得在对持续故障轨线实施同样的非线性变换以确定临界切除时间时，避免了非线性变换带来的多值性的问题，而只有在没有多值性问题的困扰下，才能采用较高阶的变换：（3）推导出了将原始电力系统系统的运动方程变换到Z空间的约当形式的非线性变换矩阵H21、H31、H41、HS1：（4）在运用四阶了「线性变换的情况下，给出了受扰动后系统的稳定边界的近似的解析表达，在Z空间为Z1=0，在y空间为： Y1+YTH21Y+YTH31Y(2)+Y(2)TH41Y(2)+YTH51Y(3)=0 （5）确定临界失稳的判据简单、快捷：对于一个复杂的电力系统，其稳定边界是相当复杂的一个高维曲面，即便是已知系统稳定边界的解析表达，要求出系统持续故障轨线何时与这一高维曲面相交，在数学上几乎是不可能实现的。
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With the boundary point and the known adjacent relations, an overall marching procedure can go on and the iteration process stops until the intersection curve is self-closed or reaches the border of the composite surface. In the later case, the marching must be repeated from the starting point in the reverse direction until the intersection curve reaches the other border of the composite surface.
由一个交点出发，通过计算跟踪方向和跟踪步长，迭代计算出下一个精确的交点；利用边界点和近曲面点计算方法，根据曲面片的拓扑关系找到交线所经过的下一张曲面片，从而使跟踪过程继续下去，直至形成封闭交线环而停止该交线段的跟踪，或到达复合曲面的边界后由首交点反向跟踪到达复合曲面的另一边界。
- 更多网络解释与边界曲面相关的网络解释 [注：此内容来源于网络，仅供参考]
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Boundaries：边界曲面
个人因刚接触曲面时,对边界曲面(boundaries)命令比较偏好,所以向上题的方法靠拢,尽管让两端成为三边曲面(因为用boundaries)可我们先分析一下架构线,很显然两端比较难处理,怎样拆面会得到比较好的效果呢!
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boundary curve：边界曲线
在"边界曲线"(Boundary curve) 收集器内单击. 选取一个闭合轮廓作为曲面片的边界.
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boundary strip：边界带
boundary simplex 边界单形 | boundary strip 边界带 | boundary surface 带边界曲面
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boundary surface：边界面
Q.2:以下图为例,利用Surface Copy的Surf & Bnd命令复制表面时,种子面(Seed Surface)与边界面(Boundary Surface)互换,为何会有不同的执行结果?Q.7:构建边界曲面(Boundary Surface)时,曲面常陷入实体内,不容易着色观察,对此有何建议?
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boundary surface：带边界曲面
boundary strip 边界带 | boundary surface 带边界曲面 | boundary value 边界值
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bounding manifold：边界廖
boundedness 有界性 | bounding manifold 边界廖 | bounding surface 边界曲面
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bounding surface：边界曲面
bounding manifold 边界廖 | bounding surface 边界曲面 | boundless 无限的
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bounding table：蹦床, 弹床
bounding surface | 边界曲面 | bounding table | 蹦床, 弹床 | bounding wall | 围墙
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Displaced Surface：贴图置换表面;置换贴图表面;位移表面;位移曲面
Displace Space Warp位移转换空间变形 | Displaced Surface贴图置换表面;置换贴图表面;位移表面;位移曲面 | Display as Box以边界盒显示;显示为方体
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edgewise winging：扁立绕法
edgesurf || 边界曲面,边缘曲面 | edgewise winging || 扁立绕法 | edgewise wound coil || 扁立缠绕线圈