从弹性力学的变分法原理出发，简单介绍了有限单元法。
Starting from the variation principle of elasticity theory, the finite element method (FEM) theory is introduced simply.
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。
We use the Lagrange variational approach to study the switching characteristics of asymmetric nonlinear directional couplers.
利用螺旋的升力线模型和变分法原理对螺旋桨叶片环量分布进行了数值优化。
The optimum distribution of circulation on a marine propeller blade is numerically determined by using the lift_line vortex model and variational calculus.
根据流体力学理论和变分法原理，推导出了熔透情况下TIG焊接熔池上表面和下表面变形的方程。
The calculating formulas of top and bottom pool-surface deformation in TIG full-penetration weld pool is developed based on principles of fluid mechanics and variation calculus.
本文从混合变分法原理着手，对弹性接触问题提出一种新的数学模式，并从中导出有限元的近似公式。
A new mathematical model for the non-Hertz contact problems is proposed based on the mixed variational principle. From this model, the finite element approximate formulae are derived.
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.
并用该变分法讨论了具有可变区域的弹性系统的势能原理。
By use of the variational method, the potential energy principle of a elastic system on a variable domain is discussed.
本文提出了利用变分法解混合边值问题直接计算位系数的原理。
A variational principle is presented in this paper for directly calculating the potential coefficients in solving the mixed boundary value problem.
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。
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.
应用推荐