The second main bearing of an internal combustion engine with elastic bush is studied and elastohydrodynamic lubrication analysis is done by the flexible matrix method according to the mechanical behavior of the crankshaft-bearing system.
以某四缸柴油机的主轴承为研究对象,从曲轴-轴承系统的角度出发,采用变形矩阵法研究了计入轴瓦弹性变形时内燃机主轴承润滑分析问题。
Large datas have to be dealt with by hand to build the flexible matrix and a great deal of time is exhausted in lubrication analysis for a bearing as the elastic deformation of bush is considered.
建立变形矩阵人工处理数据量大和润滑分析计算耗时较长是研究计入轴瓦弹性变形的滑动轴承润滑分析2个主要问题。
To avoid the degenerate configuration when directly computing the homography given the epipolar geometry in curve scene,the area-detection approach is presented in this paper.
为了提高立体图像匹配精度和速度,提出了一种改进的场景无关约束下的特征匹配算法,该算法针对用对极约束和同形映射来进行曲面场景匹配的过程中同形估计容易出现降阶的情况,通过引入区域面积检测法来避免降阶情况的发生,以改善匹配结果;同时,由于在同形矩阵估计中,通过加入基础矩阵和同形矩阵本质上的约束关系,可使得原本独立的同形约束和对极约束关系很好地融入到匹配的整个过程中,从而快速有效地抑制了错误匹配的发生。
3-dimensional metric reconstruction of plane image is a matter of determining the eight freedoms homography matrix from image plane to metric plan e.
平面型场景图像的三维度量重建就是确定图像平面到度量平面的八自由度同形矩阵,通过对平面型场景图像的三维度量重建方法的阐释,提出了非层次化平面型场景图像的三维度量重建方法,该方法不必对摄像机定标,直接考虑射影图像平面上的圆点Ip和Jp,Ip和Jp包含非度量矩阵N的四个自由度,把它们结合起来用两个圆点Ip和Jp表示对偶二次曲线来计算非度量矩阵N,基于场景几何知识,计算图像平面和世界平面之间的非度量矩阵N后就可得到平面型场景图像的三维度量重建。
Performance Analysis of Feature Correspondence Algorithm Based on Homography Constraint in Curved Scenes
仿真实验结果的分析证明,场景深度变化或者场景距离摄像机的距离变化,对立体匹配算法性能本身不受影响,但映射和建立匹配关系时所需要的同形矩阵的数量不同。
Firstly the fractal matrix of fingerprint is calculated, then some other features such as eigen value and trace are obtained from fractalmatrix.
通过求取指纹的分形矩阵，计算矩阵的本征值λ和迹等特征。
The paper summaries test methods of the basic path testing in white-box testing,analyses of the advantages and disadvantages of the McCabe methods,and focuses on the issues in the use of graphics matrix method which needs attention.
对白盒测试技术中的基本路径测试方法作了总结,分析了M cCabe方法的优缺点以及使用图形矩阵法应该注意的问题。
Sequence Two-dimension Symbologies Design and Mask Solution
连续型2维图形矩阵码格式设计及掩模方案
Spectra and Smith Normal Form for Laplacian Matrix of Graphs;
图的Laplace矩阵的谱和Smith标准形
The Zero Divisor Graphs of Z_n[ω] and Formal Triangular Matrix Rings
Z_n[ω]与形式三角矩阵环的零因子图
Application of the graphics transformation and its matrix of three-dimension graphics;
浅谈三维图形的图形变换及其变换矩阵
Matrix printer: Printer that produces images formed from dots that conform to matrix unit.
点矩阵印字机:用点子依照矩阵形式而造成图文的印字机.
Image Classification Based on Fractal Dimension and Co-occurrence;
基于分形维度与灰度共生矩阵的图像分类研究
Graphical power network topology analysis based on adjacency matrix
基于邻接矩阵的图形化网络拓扑分析方法
Irregular-Closed Graphic Recognition Based on Contour Measurement Matrix
基于等高测度矩阵辨识不规则封闭图形
A Calculation Method for Generalized Inverse Matrix of Rectangular Matrix;
长方形矩阵的广义逆矩阵的计算方法
Common Standard Form of Symmetry Matrix and Asymmetry Mabrix;
对称矩阵与反对称矩阵的合同标准形
Braces are used for the column matrices to distinguish them from rectangular matrices usually put in square brackets.
大括号用于列矩阵，以便使列矩阵与矩形矩阵区分开，矩形矩阵通常采用方括号。
Matrix Versions of the Wielandt Inequality;
Wielandt不等式的矩阵形式
CAUCHY-BUNIAKOWSKI INEQUALITY IN THE FORM OF MATRICES;
Cauchy-Buniakowski不等式的矩阵形式
A matrix formed by interchanging the rows and columns of a given matrix.
转置矩阵通过使一个给定的矩阵的行和列互换而形成的矩阵
On the Cogradient Solving Question of Jordan Canonical and Transition Matrix;
矩阵Jordan标准形及过渡矩阵的同步求解问题
The General Form of A djoint of kth degree of N-th-order s Square-Matrix;
n阶方阵的k次伴随矩阵的一般形式
Laplacian Spectra of Circulant Graph and Its Complement
循环图及其补图的拉普拉斯矩阵的谱
Study of graph corresponding to product of two adjacency matrices to two circulant graphs
两个循环图的邻接矩阵的乘积矩阵对应图的研究