惯性矩

This artical has studied the application of definit integral in physics from aspects of work, force,moment of inertia, shape center of ichnography, and the calculate of the inertia moment; mainly used the research method of from spcial to normal.

本文从功、力、转动惯量、平面图形的形心和惯性矩的计算这几个方面研究了定积分在物理学中的应用，主要运用了从特殊推广到一般的研究方法。

Aiming at the two propositions (the theorem of three concurrent forces balance and the inertia moment of multimetric polygon), the paper represents and theoretically proves that the condition of three concurrent forces balance should be modified, i.

针对建筑力学中的三力平衡汇交定理和正n边形截面的惯性矩两个命题，提出了应该对三力平衡汇交定理的条件加以修正，即对三力平衡问题中的"三力平行"这种特殊情况不必设条件加以限制，并从理论上加以证明。

A segment can be used in drirving system of cold tube mill to balance the inertial force and inertial moment in operation.

为平衡普通冷轧管机传动系统内的部分惯性力与惯性矩，在偏心齿轮上配以平衡用扇形块。

Just as linear momentum is the product of mass and velocity, so the angular momentum of a body is defined as the product of its moment of inertia and its angular velocity.

这句话的意思是：正如线性动量是质量和速度的乘积一样，一个物体的角动量定义为惯性矩和它的角速度的乘积。

3D model may be manipulated so that its shape could be observed from any view, and is displayed on the screen by static state and dynamic. The property of volume and the moment of inertia matrix are obtained from the octree of object by the algorithms presented in this dissertation. To fit the application of recognition, we studies the method by which 3D model octree is used for recognition.

作者研究了对重建飞机三维形体的旋转和操作，提出了飞机体积及惯性矩的计算算法，并利用计算机图形学技术，对重建的飞机三维形体进行了静态和动态显示，论文对重建的飞机三维模型用于识别的方法进行了探索性的研究。

Characteristic number of inertia moment of gray level co-occurrence matrix can reflect the feature of complexity of image gray space. Optimum space coefficient of LOG operator can be ac-quired effectively and most noise of images can be removed.

通过纹理分析，利用灰度共生矩阵惯性矩特征值能够反映图像灰度空间复杂度的特性，成功获取了LOG边缘检测算子最佳空间系数，抑制了图像中的大部分噪声。

A mechanical operation of the courses, for the moment of inertia, although relatively small, but I always learn is the accumulation of VB.

一个材料力学课程的作业，用于惯性矩的计算，虽然比较小，但也是我平时学VB的积累。

Finally, analysis and discussion in dynamic stability of nipper mechanism show that instable regions become wider with speed increasing and the chief factor determining motion stability of nipper mechanism is its first two modes which can be changed by adjusting the ratio of the length and inertia.

最后利用该参数平面分析了钳板机构的稳定性，分析表明，随着速度的提高，不稳定区域越来越宽；影响钳板机构稳定性的主要原因是机构的前两阶模态，可以通过调整构件的长度比、惯性矩比来提高钳板机构运动稳定性。

In this paper, we use FEM software ANSYS to simulate. Using FEM to evaluate the strength of pressure hull, the FEM model of outer covering and stiffeners can use shell element to establish, but it may waste much computing time to calculate. Therefore, in this paper, we can evaluate more easier by making use of the idea of effective-width, and considering the stiffener/plating combined moment of inertia.

本文采用有限元素分析软体ANSYS进行求解，在有限元素分析的模拟上，外壳与环肋均可用壳元素建立一实体模型来分析，但是在模型的建立上过於复杂，在解析上也需要更多的时间来计算，因此本文采用有效幅度的观念，考虑环肋与壳板间之组合惯性矩，将环肋部分取梁元素来模拟，如此一来可简化建立模型的困难度，且大大的缩短分析的时间。

The maximum shearing stress is proportional to the applied torque and inversely proportional to the polar moment of the cross section.

最大的切应力和所加扭矩成正比，与截面的极惯性矩成反比。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了