筏板的控制方程由薄板理论和虚位移原理得到。
The governing equations of the raft are obtained based on the thin plate theory and the virtual work principle.
明确了虚位移原理的变分约束条件和变分自然条件。
The boundary condition of restriction and the natural condition of variation for the virtual principle of displacement are given too.
根据虚位移原理，推导出基于矢量磁势的电磁力计算公式。
According to the principle of virtual-work, the formula of electromagnetic force based on magnetic vector potential is deduced.
本文阐述了直接用虚位移原理计算刚架影响线纵距的方法。
This paper presents a method of using the principle of virtual displacements directly to obtain the ordinates of the influence line for frames.
用证明古典虚位移原理的传统方法证明虚位移原理（扩大）。
The extended principle of virtual displacements is also proved by another method, which is used customarily to prove the classical one.
采用虚位移原理和刚塑性本构模型，推导了接触单元的刚度矩阵。
Using the principle of virtual displacement and a rigid-plastic constitutive model, the stiffness matrix of the new contact element was deduced.
应用分析力学中质点系的虚位移原理，即可得到变形体的虚功原理。
The principles of virtual work for deformable bodies can be obtained with facility by taking advantage of the well known principle of virtual displacement in analytical mechanics.
研究考虑铁磁介质饱和时基于有限元和虚位移原理的局部电磁力算法。
A method for the computation of local magnetic force in saturated ferromagnetic materials is proposed, based on FEM and virtual work principle.
对虚位移原理在运动学中的应用做了初步探讨，建立了“虚功率方程”。
This article approaches the application of the principle of virtual displacement to kine-matics, sets up the"virtual power's equation", and provides a new research method for kine-matics.
由此推得静止系统的虚位移原理（扩大），它包含古典的虚位移原理在内；
From the genealized one, the extended principle of virtual displacements for static systems is deduced, including the classical one.
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。
The function of the nonlinear suspension stiffness with tire skipping distance was obtained by virtual displacement theory.
该法将虚位移原理推广应用于有限单元的节点，从而得到用以描述局部电磁力分布的等效节点力。
The distribution of local magnetic force is described with an equivalent node force, which is derived from an extended application of virtual work principle to FEM node.
应用虚位移原理和结合考虑材料交界面上的约束条件，文章建立了接触单元的刚度矩阵和等效荷载向量。
Employing the virtual displacement principle and considering constraint conditions of material interface, the stiffness matrix and equivalent load vector for this element are established.
本文应用虚位移原理，在充分考虑钻柱所处的特殊环境的基础上，考察了斜直井眼中钻柱屈曲的可能性。
On the basis of energy method, the possibility of drill stem buckling in inclined straight hole is studied.
以虚位移原理为理论基础和出发点，提出了一种简单通用、行之有效的推导凸轮机构压力角表达式的新方法。
Based on and starting from the false-displacement fundamental, this paper puts forward a simple, general and effective method for deriving the pressure Angle expressions of earn mechanisms.
低负荷时基于虚位移原理的计算方法容易受到气隙剖分策略的影响，因此在低负荷状态下，应尽量采用麦克斯韦应力法。
The methods based on virtual work principle are more easily affected by the gap mesh strategy under light loads. Accordingly, the Maxwell stress method should be taken under light load conditions.
低负荷时基于虚位移原理的计算方法容易受到气隙剖分策略的影响，因此在低负荷状态下，应尽量采用麦克斯韦应力法。
The methods based on virtual work principle are more easily affected by the gap mesh strategy under light loads. Accordingly, the Maxwell stress method should be taken under light load conditions.
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