A direct solution for displacement and internal? force of non? symmetric pile foundation is obtained based on the principle of elastic center and the method of stepwise mathematics in the paper. 用弹性中心原理和逐步逼近的数学方法导出不对称竖直群桩基础变位和内力的直接解,解的形式利于设计工作公式化和表格化。
Automatic of detection of rotational symmetry figure and extraction of symmetric center ( axis) is one of important issues on description and analysis these kinds of objects. 自动检测该类目标的旋转特性以及提取目标的旋转中心(轴),是描述和分析旋转对称目标的关键步骤。
The velocity distributions at blade tip are not strictly symmetric about the center along blade height, which means agitator is not the only factor that may influence the flow fields in stirred vessel. 搅拌桨叶片端部的速度分布并非关于叶片高度的中心位置严格对称,搅拌设备的流场结构并非完全由搅拌桨的行为决定;
With the view of obtaining symmetric splitting angle prism, on the basis of Bi-, through designing the orientation of the crystal optic axis rationally, make the prism plane-symmetry about center tangent plane; 为了获得分束角对称的偏光分束棱镜,在双Wollaston棱镜结构的基础上,通过合理设计棱镜左右两端晶体光轴的取向,使棱镜整体呈中心切面对称;
The approach can eliminate the numerical oscillation near the symmetric center of chambers and was effective to determine the blast load. 与单纯的数值方法相比,本文所探索的方法能有效地克服对称轴附近的数值振荡,不失为确定爆炸载荷的一种新途径。
Cylindrical coordinates FEM solution to periodic symmetric problem with a rotating center 一类周期对称问题的柱坐标FEM解法
In view of the symmetric arrangement of the three conductors to the sheath center of a three-core power cable, this paper presents a new approach to calculation of electric field using a charge simulation method. 本文针对三芯电力电缆内三导体布置上的对称性,提出了一种采用模拟电荷法计算其电场的新算法。
This part of wave function could be described by T2 symmetric combination of four hybrid orbital quasi dangling bonds located at four nearest neighbour sites and pointing toward the defect center. 该部分相当于四个最近邻格点指向缺陷的杂化轨道准悬键的T2组合。
There exist three possible stationary motions of the sphere. The permanent rotations about its symmetric axis with the center of mass, lower or higher the center of sphere, and the regular precession with a definite nutation angle. 分析表明,刚球存在三种可能的稳态运动,即质心低于或高于球心绕对称轴作永久转动,或以某个确定章动角作规则进动。
While in spiral flow, the distribution is symmetric about its center and horizontal axis. 对螺旋管流,可从流场的特点分析出固粒分布的中心对称与上下对称性。
Due to the frontal barocline, its temperature field structure evolved from symmetric warm center to asymmetric half cold and half warm extratropical cyclone. And the winds field also has such asymmetric structure. 由于锋面的斜压作用其温度场结构发生了明显变化,由对称的暖心结构演变为半暖半冷的温带气旋非对称结构,相对应的高度场、流场特征亦表现出非对称结构。
Design of Symmetric Parallel Motion Cam for Open Type Self-centering Center Rest 开启式自定心中心架对称平移凸轮的设计
Antimatter-Matter Symmetric Universe Model with a Center of Special Big Negative Energy Antimatter-matter Planet 以特大负能反正物质星体为中心的正反物质对称宇宙模型