查询词典 moment method

In consideration of the effect of the moment on the axial rigidity of the reinforced beam,the theory and practice of main cable s configuration calculation of self-anchored suspension bridge were systemically introduced with the method of segmental catenaries.

基于分段悬链线法，介绍自锚式悬索桥主缆线形计算原理和步骤，考虑弯矩对加劲梁轴向刚度的影响，在迭代计算过程中，提出采用非线性规划方法，并与传统的影响矩阵法进行对比，计算结果表明，两者结果吻合，从而使借助大型通用优化软件对自锚式悬索桥主缆线形进行精确求解成为可能

According to the characteristics of the larger start electric curent, start torque and the demagnetizing influence of the armature reaction of motereycle starter at the moment of starting, the formula of the largest demagnetizing magnetic- power is deduced and the magnetic method of separehng alnico is gnined on the basis of the largest dernagntizing magntic - power.

根据摩托车起动电机起动电流大、起动转矩要求高的特点，以及起动时直轴电枢反应和交轴电枢反应对永久磁铁的去磁作用，推导出最大去磁磁势的计算公式，给出了根据最大去磁磁势选择磁钢的方法，并通过实测证明电枢反应对起动电机性能的影响。

In general, the major results are:(1) Established the geometrical model for the enwinding of the wire rope in the roller, such as the inclination of the wire rope and the climbing equation of roller in the commutation process;(2) Established the tensile force kinetic model for the enwinding wire rope used the Lagrange kinetic equation and the continual kinetic theory in the start up and retard moment. Solved the equations by the method of modal analysis and separation of variables(3) Based on the analysis on the enwinding mechanism of the wire rope, we did the research on the mechanics behavior of the wire ropes enwinding process.(4) According to the research above, we made the computer program to solve the mechanics models. And after parametric analysis, we made the suggestion for the improving of the current wire rope enwinding system.

主要研究工作有：(1)建立了钢丝绳在滚筒缠绕几何模型，研究了钢丝绳缠绕过程极限偏角及换向过程在滚筒爬坡机理及几何模型；(2)依据LAGRANGE系统广义动力学方程、连续体动力学理论分别建立起升系统启动及制动过程钢丝绳缠绕快绳拉力的动力学模型，并分别采用模态分析法及分离变量法求解；(3)结合对钢丝绳在钻机滚筒缠绕机理分析的基础上，研究了钢丝绳在滚筒缠绕过程力学行为；(4)编制计算机仿真程序对上述模型进行求解，在参数分析的基础上提出对目前钢丝绳缠绕系统结构改进建议。

Fracture is caused by sheet's tensile instability, Hill's totalized instability theories and Swift's diffuse instability theories which based on continuous mechanics are applied to isotropic blank; Marciniak and Kuczynski's theories are applied to orthotropic blank, which introduced thickness imperfections normal to the principal stress and strain direction as a groove pre-existing defects in the material. The stability of each part of blank at each moment is described by numerical method, and the results are shown by computer simulation, thus the fracture in sheet forming can be predicted preciously.

拉裂是由于拉伸失稳引起的，以连续体力学为基础的Hill集中性失稳理论和Swift分散性失稳理论应用到各向同性板料进行失稳判定；将Marciniak和Kuczynski的凹槽损伤失稳理论应用到正交各向异性板料拉伸失稳判定，对板料各处在成型过程中不同时刻的稳定性进行数值化描述，并运用计算机仿真技术进行直观的表现，可以准确地预测板料成型中可能出现的拉裂现象。

The numerical example shows that the coordinate of arch axis positioned by the method is reasonable and the moment of the main arch ring can be reduced effectively by the methods of average weight coefficient arid gauss weight coefficient.

算例分析说明求解的拱轴线坐标是合理的，应用平均加权和高斯加权方法可有效减少主拱圈弯矩。

FARROW: It's come on to our radar because obviously what the criminals do - they can't break the chip at the moment although I've no doubt that they'll be trying to do that - so what they've done is to recourse back to the old fashion method if I can call it that of skimming the magnetic strips on the cards but they've realized that because the ATMs are enabled in this country - it's been easier to go on to the continent and to other countries in the Far East and so and use them where ATMs are not secured for chip use.

法柔： 这一切归功于我们的雷达，因为很明显地我们被告知犯罪份子做了什么--他们不能立刻破坏芯片，虽然我毫不怀疑他们会一直想办法这样做--所以他们所做的还是求助于老方法。这样说吧，就是扫描卡上的磁条。但是他们发现在英国的自动取款机上这样做行不通时，就转向欧洲大陆别的国家或是远东的一些国家，在那里可能会容易一些，那里自动取款机对芯片的使用没有这么安全。

Based on the research progress abroad,calculation method of deflection due to short-term loads and calculation expression of effective moment of inertia for concrete beams reinforced with FRP bars were brought forward.

在国外有关成果的基础上，给出了FRP筋混凝土梁的挠度计算建议方法及&有效惯性矩&的表达式，同时提出了设计时不需进行挠度验算的最大跨高比限值的计算公式及相应的基于挠度控制的承载力设计方法，对工程应用有着实际的指导作用。

Based on the characteristics of staged-construction of foundation pit and the interaction of diaphragm walls-bracing-soil, a FEM method is provided in this paper to analyze the moment and deformation of the diaphragm walls in whole process of foundation construction, taking consideration of all the possible construction stages from the beginning of excavation to the end of foundation, and the influence of cap beam, pre-load of steel bracing, removal and change of bracing, and the corresponding computer program is composed.

本文首先基于杆系有限元计算原理、基坑工程分工况施工以及围护体、支撑、土体协同工作的特点，提出了一种基坑支护结构全过程内力及变形分析方法，编制了相应的计算程序。该法可考虑第一阶段挖土至±0.000结构楼层施工结束期间的所有工况，可考虑压顶梁对围护体变形的制约作用，以及钢支撑预加轴力、拆撑、换撑等因素的影响。

Then the numerical method is applied to predict the resistance, the lateral force and yaw moment on the ship at different drift angles in shallow water with different water depths, and the influences of the water depth and drift angle on the hydrodynamic forces are analyzed.

在此基础上，采用本文的数值方法对不同水深情况下船舶以不同漂角斜航时所受的阻力、横向力和转首力矩进行预报，并分析了水深和漂角对斜航运动船舶水动力的影响。

The calculated pressure distribution and the lift and moment coefficients of the airfoils as a function of time are shown in the thesis, some results are compared with those of other method.

本文所建立的方法，具有占计算机内存小，计算时间短的优点，在中小型计算机上即可进行计算。

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。