查询词典 moment method

Moment of inertia ; Product of inertia ; Dynamic balance ; Measurement Method ; Missile ; Torsion pendulum

转动惯量；惯性积；动平衡；测量方法；导弹；扭摆

This method is feasible to obtain the moment of inertia of irregular shape parts.

该方法是求得复杂零部件转动惯量的一种可行方法。

Then through dynamical analysis, every instantaneous acceleration distributing of slope under dynamical earthquake can be got too. According to this result, adding earthquake force to structure by way of inertial force, this paper analyses the slope stabilization by using FEM strength reduction method and gains every instantaneous safety factor and its corresponding slide. Curves of safety factors versus duration can be made by curvefitting. By safety factors versus duration curves and slides, we can value structure's quakeproof stabilization and point its slide out. By these principles, programs of FEM stabilization analysis for each moment are organized.

首先通过三维非线性有限元静力分析得到动力分析的初始应力，再进行动力分析得出边坡在动力作用下每一瞬时的加速度分布，根据每一瞬时的加速度分布的结果，将地震作用力作为惯性力加在结构上，用有限元强度折减法进行边坡稳定分析，得出在地震动力作用下每一瞬时的安全系数及对应滑裂面，拟合可得到一条安全系数随时间变化的曲线，根据这条安全系数时程曲线及滑裂面，综合得出结构的抗震稳定安全系数及对应的滑裂面。

On solving this integral equation, the moment of method is used.

为了解决积分方程，我们采用了矩量方法。

A precision solution of the moment of inertia of a lead screw's crosssection was obtained by interpolation polynomial and numerical integral method.

在精密长丝杠的磨削过程中，由磨削力、磨削热和砂轮磨损所引起的被加工丝杠的螺距误差已不可忽略。

The graphic recognition based on invariant moment and implementation of the method in the system is studied.

研究特征矩不变性的图形识别方法，探讨该法在系统中的应用，并提出不断修正标准模板中标准图形来提高识别精度的方法。

In order to conquer this difficulty, we suggest a naive estimating method of moment based on matrix algorithms Kronecker tensor product, vec and mathematical expectation.

主要推导工具是矩阵中Kronecker乘积，矩阵拉直运算以及数学期望。

Leastsquare method and Lagrange's interpolation formula see their applicationsfor fitting fore-and-aft lines-whose aim is to calculate the intersection point ofequivalent inclined waterline-and differences. In order to replace theinconvenient alternate conduct of drawing and calculating, improvement hasbeen introduced into the paper which means all work can be done bycomputer. Capacity calculation cannot be done without boundary layer build-up. Fit every area curve and area moment curve is necessary because ofinterpolation.

在第二章中，给出了B样条函数的数学表达形式，推导了B样条曲线下所围面积、面积矩公式；讨论了最小二乘法和拉格朗日插值法的数学形式，并在拟合船体型线上给出首、尾轮廓线的具体实例，对比不同方法进行拟合的差异，其目的是为了求得与等体积倾斜水线的交点；而水线的确定改变了以往人工作图与计算交替进行的不足，尝试用计算机完全代替人工作图，以求有所改进；在舱容计算中，在至少包括舱室前、后壁的范围内拟合横剖面积、面积矩曲线，插值求得任一纵向位置处的剖面，以解决舱室边界条件。

A kind of method adopting polynomial approaches to match the nonlinear curve of looper tension moment is put forward on the base of analyses of the curve characteristic and project practice.

通过对带钢张力矩计算理论公式的分析并结合工程实际，提出了一种采用多项式逼近来拟合活套张力矩非线性曲线的方法。

This paper introduces a method of accurately engineering calculating transmitting torque of magnetic driver,discusses the relationship between the moment and the parameters of magnetic body.

文摘：介绍了平面轴向磁性传动器传递力矩工程计算的准确方法，探讨了其传递力矩与磁体参数间的关系，得到的结果可供实际设计时参考。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。