Using the variational approach, we investigate the dynamics of the vector solitons.
通过变分法，我们研究了矢量孤子的动力学。
The interaction between two optical soliton is derived from nonlinear Schrodinger equation by variational approach.
本文利用变分原理，通过非线性薛定谔方程，导出光纤中传输的光学孤子相互作用。
The stability of moderately thick plates under the symmetrical edge loading is studied by the variational approach.
本文用变分法对矩形弹性中厚板在对称边界荷载下的稳定性进行研究。
We use the Lagrange variational approach to study the switching characteristics of asymmetric nonlinear directional couplers.
利用拉格朗日变分法原理，分析了非对称非线性定向耦合器的开关特性。
Through a variational approach, the passage from the additive decomposition to polar decomposition of deformation gradient has been completed.
本文通过变分途径建立了变形梯度张量的极分解和加法分解之间的联系。
By means of the variational approach, in a condition weaker than(AR) the existence of infinitely many solutions of fourth-order elliptic equation is discussed.
在比（AR）条件更弱的一类超线性条件之下，利用变分方法讨论了一类超线性四阶椭圆方程的无穷多解的存在性。
According to the principle of the minimum potential energy the deformation of single tension pile and pile groups was analyzed using a modified variational approach.
根据最小势能原理，使用修正变分法来分析抗拔单桩和抗拔群桩的变形。
According to the principle of the minimum potential energy, the deformation of single tension pile and pile groups was analyzed using a modified variational approach.
根据最小势能原理，使用修正变分法来分析抗拔单桩和抗拔群桩的变形。
The ground state energy of weak-coupling polaron in a parabolic quantum dot considering the phonon dispersion is calculated using the squeezed-state variational approach.
在声子色散影响下利用压缩态变分法计算了抛物量子点中弱耦合极化子的基态能量。
With the background of lateral stability of non-range-spacer through bowstring arch, analytical approximations are derived in this paper using energy variational approach.
通过对系杆拱桥作用在拱肋上的荷载性质进行了分析，采用能量法推导出无横撑下承式系杆拱桥侧倾稳定临界荷载的一般公式。
The negative plastic hinge line in the plate was evaluated by using variational approach, then an equation for calculating the ultimate load carrying capacity was developed.
首先利用变分原理确定板的负塑性铰线方程，继而推导出极限承载力的表达式。
Dispersion-managed soliton interaction is investigated in an optical time-division multiplexed system with random dispersion map by the variational approach and the numerical simulation.
本文采用变分法和数值方法研究了具有随机色散的光时分复用系统中色散管理孤子相互作用。
A new slope stability analysis method, explicitly satisfying all limiting-equilibrium equations, is presented. To make the problem statically determinate, the variational approach is used.
本文在现有变分法求解土坡稳定的基础上，推导了一种能适用于任意有对称面的非均质土坡的稳定分析方法。
Based on "modified variational method", a new dynamic analysis approach of aircraft panels has been derived in this paper.
本文以“修正的变分方法”为基础推导了一种新的飞机壁板结构动力分析方法。
The paper presents a new symmetric coupling approach of BEM and FEM, which is based on the sub-region variational principle.
本文从弹性力学分区变分原理出发，提出一种新的有限元与边界元的对称耦合方法。
Essentially, the finite element method is a numerical technique for the variational problems, which is a general approach to physical problems.
有限元法实质上是变分问题的一种数值解法，是物理问题的通用计算方法。
Essentially, the finite element method is a numerical technique for the variational problems, which is a general approach to physical problems.
有限元法实质上是变分问题的一种数值解法，是物理问题的通用计算方法。
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