查询词典 numerical

Permanent Magnet Synchronous Motor has the advantages of high magnet density, small torque pulse, big torque-inertia ratio, high efficiency, simple construct and so on. PMSM has been applied to the occasions that requires high precision of control and high reliability far and wide, such as avigation, numerical control machine tool, radar and some military weapons follow systems, robot and so on. In addition, it plays an important part in Ac motors in modern times.

交流永磁同步电机具有气隙磁密高、转矩脉动小、转矩/惯量比大、效率高、结构简单等优点，在要求高控制精度和高可靠性的场合，如航空航天、数控机床、雷达与各种军用武器跟随系统以及机器人等方面获得了广泛的应用，在现代交流电机中也占有举足轻重的地位。

The velocity distribution of the numerical simulation and the theoretical equations calculation are compared on the condition of axial symmetry.

结果表明，在轴对称条件下，对数模、理论计算的速度分布进行对比分析，证实了旋涡流场不仅是径向的函数，而且还是轴向的函数。

Based on engineering design method and combined with numerical simulation,an axial symmetry supersonic inlet with boundary layer bleed was designed.

应用工程设计方法，结合数值模拟，设计了一种带有边界层吸除型式的超声速轴对称进气道，对进气道内流场进行了数值模拟研究，并且进行了风洞实验。

The predict model of hydro-performance of axial flow pump is established on the basis of numerical simulation.

在三维数值模拟的基础上，建立了考虑粘性及间隙影响的轴流泵叶轮水力性能的预估模型。

At present, our company has two 30-ton crane line, able to store 8000 cubic meters blocks, five General processing plant, with an area of 12200m2, the use of production equipment have: disc saw 10 Units (4 Units one of a Computer Numerical Control piecewise), Italy sand saws (4 Units), cylinder sawing (2 Units), Italy continuous mill (2 Units), Italy fully automatic plate production line (1 sets), double-headed grinding (5 Units), fire machine ( 2 sets), infra-red four-post Hydraulic Cutting Machine (7 Units), CNC Wire Saw (2 Units), computer profiling cutting machine (5 Units), gantry profiling machine (3 Units), lap, Horizontal cylinder machine (6 Units), hand-cut machine (5 Units), Walk Mill (3 Units), special-shaped lines of milling machine (3 Units), plant 3-ton forklift (4 Units), an annual output of various granite marble and 380,000 square meters of imports of plate, sheet 100,000 square meters, producing cylindrical, cut axinite, machine planed stone, mushroom stone, step stone, paving stone plaza, special-shaped stone 100,000 square meters.

目前，本公司已拥有30吨行吊两部，能储存荒料8000立方米，综合加工车间五个，面积为12200m2，采用加工生产的设备有：圆盘锯10台（其中4台电脑数控分片）、意大利沙锯(4台)、筒锯（2台）、意大利连续磨机（2台）、意大利全自动薄板生产线（1台套）、双头磨（5台）、火烧机（2台套）、四柱液压红外线切机（7台）、数控绳锯(2台)、电脑仿形切机（5台）、龙门式仿形机（3台）、立、卧式圆柱机（6台）、手摇切机（5台）、手扶磨（3台）、异型线条磨边机（3台）、厂用3吨叉车（4台），年产各种花岗岩大理石及进口板材38万平方米、薄板10万平方米，生产圆柱、剁斧石、机刨石、蘑菇石、台阶石、铺地广场石、异型石材10万平方米。

In this paper, the magnetic field of tube electromagnetic bulging with axisymmetric coil is investigated by numerical simulation method.

成形线圈设计是电磁成形工艺的关键技术之一，而设计线圈的理论依据之一是线圈受力分析。

With the ordinary boundary conditions, the numerical solution was presented for the problem of axisymmetric buckling.

得到形式上简化了的屈曲控制方程。在比较简单的边界条件下，进行了轴对称屈曲问题的数值求解。

Numerical simulation of finite element for pile under uplift loading is done by axisymmetric model.

利用轴对称模型对等截面桩进行承受上拔荷载作用的有限元模拟。

We can see the P wave amplitude and traveltime difference with the azimuth and incidence angle in numerical simulation.

在数值模拟中可以看到随观测方位和入射角变化的纵波振幅和旅行时的差异。

The Schur subspace iteration method is applied for the dynamic characteristic analysis of damped structure vibration system and coupled fluid－structure system. This method avoids complex computation and has good numerical stability. A accelerated technique and a pre－process method for the system matrix are suggested to improve the computational efficiency. The generalized uncoupled equation is obtained from the Schur matrix and a back substitution scheme of response computaton is developed.

第三部分将非对称特征值问题的Schur子空间迭代法应用于非经典阻尼结构振动系统和流固耦合系统的特征值分析，建立了相应的具体算法，并给出了用以提高迭代收敛速度的迭代加速和矩阵预处理等实用技术；利用Schur矩阵的结构特点，推导了系统方程的动力解耦形式，给出了响应计算的回代求解格式。

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说，如果是/否的问题回答f可看的价值观念在许多最有限坐标，然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明：基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小，它既能去除奇异点，又能保持图像中目标的边缘不变性，具有很好的滤波效果。