虚

Let the junction of the three fracture lines have a virtual displacement.

令三条折断线的相交处有一虚位移。

Starting from the weak form of virtual displacement equation, the homogenization method is introduced for linear elastic problems.

在线弹性范围内，根据均匀化理论，基于虚位移原理，结合有限元方法推导出二维周期性结构的均匀化的有限元格式。

The function of the nonlinear suspension stiffness with tire skipping distance was obtained by virtual displacement theory.

根据虚位移原理计算得到了扭杆弹簧双横臂悬架的非线性悬架刚度与车轮跳动的函数关系。

Based on theoretical analysis to this modulation phenomenon, two sets of linealy equations for computing 3D displacement of the virtual point sources of the reference beams and the measured object have been derived.

基于对这种调制的理论分析，导出计算参考光虚点光源和被测物体三维位移的二个线性方程组。

Based on virtual displacement analysis, a linear model of four degrees of freedom is established in terms of Lagrangian equations to analyse the dynamic characteristics of automobile front wheel independent suspension system.

在虚位移分析基础上，利用拉格明日方程推导并建立了单侧前独立悬架系统线性四自由度动力学模型，并利用此模型进行了系统在不同激振力作用下强迫振动响应计算方法的探讨。

Based on the Reddy′s higher order shear deformation theory , geometrically nonlinear governing equations and their boundary conditions of composite laminated plates are obtained in the form of displacements by the virtual displacement principle.

根据 Reddy的高阶剪切变形理论，用虚位移原理推导出以位移形式表达的复合材料层板的非线性控制方程及相应的边界条件。

The first chapter presents a comprehensive study of nonholonomic dynamics. They are studied that the nonlinear problem and un-determinate problem of virtual displacement in nonholonomic system in the second chapter. In chapter 3, they are studied that Chetaev model and Vacco model in nonholonomic system.

第一章对非完整动力学研究的有关现状进行了综合评述；第二章研究了非完整系统虚位移关系的不定性问题与非线性问题；第三章比较研究了一般非完整系统的Chetaev模型和Vacco模型；第四章研究了本质线性非完整系统的Hamilton原理；第五章给出了本文的结论与有关研究的展望。

The electromagnetic torque and force were calculated with virtual displacement method. The friction torque was done with friction law. And then the output torque was calculated.

用虚位移法计算了电磁转矩和电磁吸力，用摩擦定律计算了摩擦转矩，进而计算出输出转矩。

3 The difficulties if the curriculum: internal force calculation of combined structures; virtual work principle and displacement calculation ; displacement method; analysis of structural matrix analysis; dynamic calculation.

本课程难点：静定组合结构的内力计算，虚功原理和结构位移计算，力法，位移法，结构矩阵分析，结构的动力计算。

The electrostatic force and magnetostatic field force calculat edwith the method of virtual displacement

文章从理论和实例出发，给出一种计算电场力和磁场力的有效方法——虚位移解法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。