variation principle是什么意思

网络释义

用法例句

The variational principles for the analysis of electro-magneto-elastic material;

压电、压磁耦合弹性介质材料的变分原理

A study of model analysis of anti deformation building based on generalized variational principle;

基于广义变分原理的抗变形房屋模型分析研究

Variational principles and generalized variational principles on flow theory of plasticity;

塑性增量理论的变分原理和广义变分原理

Application of the variation principle for calculating the force-energy parameters of rail rolling by a universal mill;

应用刚塑性体的变分原理求解钢轨万能轧制过程的力能参数

The calculation of critical load of a compressive bar by direct method based on variation principle;

基于变分原理的直接解法求压杆的临界载荷

Relativistic variation principle and dynamical equations of the rotational variable mass system;

转动变质量系统的相对论性变分原理和动力学方程

Analogue to variational principles in solid mechanics, variational principles in heat con-duction are developed by the method of weighted residuals in this paper.

采用力学中建立最小势能原理和最小余能原理的加权余量法,分别得到了热传导中势能型与余能型的变分原理。

By such technique the time derivative term in the coupled heat conduction equation is eliminated, so that the semi inverse method of eatablishing generalized variational principles proposed by He can.

应用半反推法及动态差分变换和初终值条件的新处理法 ,建立了各向异性线性材料大变形耦合热弹性动力学的经典型 (即不含卷积的非 Gurtin型 )统一变分原理族 ,从而为应用有限元法求解奠定了理论基础 。

By means of variational structure and Z_2 group index theory,we obtain a estimate for number of multiple periodic solutions to second-order neutral functional differential equations (cx(t)+x(t-T)+cx(t-2r))"-x(t-T)+λf(t,x(t),x(t-T),x(t-2T))=0.

本文通过变分原理和Z_2不变群指标,得出下述二阶中立型泛函微分方程(cx(t)+x(t-T)+cx(t-2T))"-x(t-T)+λf(t,x(t),x(t-T),x(t-2T))=0周期解个数的下界估计。

By means of variational structure and Z2 group index theory, we obtain multiple solutions of boundary value problems for second-order ordinary differential equations and lower bound estimate for number of the solutions.

本文利用变分原理和Z2不变群指标研究了二阶常微分方程边值问题的多重解。

By means of variational structure and Z2 group index theory, we obtain multiple periodic solutions to a class of second-order functional differential equations of mixed typex"(t-τ)+f(t,x(t),x(t-τ),x(t-2τ))=0andx"(t-r)+λf1(t,x(t),x(t-τ),x(t-2τ))=x(t-τ

本文利用变分原理和Z2不变群指标研究了二阶混合型泛函微分方程x"(t-τ)+f(t,x(t),x(t-τ),x(t-2τ))=0和x"(t-r)+λf1(t,x(t),x(t-τ),x(t-2τ))=x(t-τ)多重周期解。

generalized variational principles in theory of elasticity

弹性力学广义变分原理

The Variational Principle and Generalized Variational Principle for the Heat Conduction Problem

热传导问题的变分原理和广义变分原理

Variational Principles of Extreme Value with Mixed Variables in Elasticity;

弹性力学中混合变量的极值变分原理

On Second Stage Minimization Variational Principle in Plasticity

塑性理论中的二阶段最小变分原理

Quasi-Variational Principles on Non-Conservative Analytical Mechanics with Damping

含阻尼非保守分析力学的拟变分原理

Format Analysis Based on the Image Restoration Calculation of Variation Principle;

基于变分原理的图像复原计算显格式分析

Variational Principles with Mixed Variables in Theory of Elasticity with Finite Displacement;

有限位移弹性理论混合变量的变分原理

Then the stochastic variational principle is formulated.

并由此推导了二阶摄动随机变分原理。

The Application of Complementary Variational Principles in Sinusiodal Electromagnetic Field

互补变分原理在时谐电磁场中的应用

A Variational Principle in Heat Conduction and Its Applications (Ⅱ)

热传导的一个变分原理及其应用(Ⅱ)

The Studys and Applications of Springback Variational Theory of Beam and Thin Plate;

梁和薄板的回弹变分原理研究与应用

Study on Variational Principles of Springback for Bending and Its Numerical Simulation;

弯曲回弹变分原理及其数值模拟研究

The Generalized Variational Principles for the Natural Frequencies of Elastic Cylindrical Shells;

弹性圆筒壳固有频率的广义变分原理

Remarks on Ekeland s Variational Principle;

关于Ekeland变分原理的一点注记

Ceneralized Lagrange Principles Of Relativistic Mechanical Systems;

相对论系统的广义Lagrange变分原理

The Local Topological Pressure Variational Principle for Sub-additive Potentials

次可加函数列的局部拓扑压变分原理

Variational principles for coupled Gross-Pitaevskii equations

耦合Gross-Pitaevskii方程的变分原理

Variational Principle for a Special Cosserat Rod

细长杆的Cosserat动力学模型和变分原理