variational principle

Then the stochastic variational principle is formulated.

并由此推导了二阶摄动随机变分原理.

Based on thin-walled bar theory and finite element method, differential equations for the distortion of thin-walled box girder are established using by the principle of minimum potential energy variational method.

本文以薄壁杆理论和有限元法为基础，根据最小势能原理及泛函变分法建立了薄壁箱梁的畸变控制微分方程。

Extended Variational Principle in Non-Linear Theory of Elasticity

非线性弹性理论的泛变分原理

By theory says, the variational principle and the Schrodinger equation are equal.

从原理上讲, 变分原理与薛定谔方程等价.

Variational principle for two dimensional flows of the compressible ideal fluid with incontinuous surfaces

有间断界面的二维可压缩理想流体流场的变分原理

Based on the Mindlin plate theory, and by modifying the mixed variational principle, the Hamilton canonical equation for the free vibration analysis of Mindlin plate is derived and the analytical solution is also deduced by the adjoint ortho-organization symplectic geometry method.

本文通过对混合能变分原理的修正，建立了Mindlin板动力学问题的Hamilton正则方程，并采用共轭辛正交归一关系给出固有频率分析的精确解。

Some references indicated that the extremum in the Schrodinger variational principle is a minimum.

已有的一些文献指出,薛定谔变分原理中的极值是极小值.

This pater presents a separable Hamiltonian system in elasticity and its corresponding variational principle. Further its finite element method is taken to solve thick laminated composite plate problems.

本文给出弹性力学中可分的哈密顿系统及其相应的变分原理，用有限元法求解了强厚度复合材料叠层板问题。

Hamilton variational principle does not suit nonholonomic mechanical system.

哈密尔顿变分原理不适于非完整力学系统.