斯蒂芬问题是研究边界变化时导热规律的的物理方程的自由边界条件。
Stefan problem is free boundary condition of physical equation in thermal transfer when the boundary change.
这种模拟方法的主要优点是自由边界条件实现比较方便，数值频散小，模拟精度高。
This method has advantages of small numerical dispersion, high simulation precision, and easy imposition of free boundary conditions.
编制了氯化钠型结构各种晶体的晶格振动通用程序；它适用于循环或自由边界条件。
The common program, which can calculate the lattice vibration for various crystals with NaCl structure type, has been made and it is applicable to cyclic or free boundary condition.
本文是采用变分估计方法考虑一类椭圆方程在临界指数和自由边界条件下解的存在性问题。
This papar deals with the problem of solution's existence about elliptic equation under limiting exponents and free boundary problem by variational evaluation methods.
若采用自由边界条件，则模花样和振动频谱完全不同，这时只能分为低频支、中频支和高频支。
The vibrational modes and spectrum are very different if the free boundary condition is adopted, and the spectrum is divided into low, medium and high frequency branches.
本文给出了复杂边界条件下任意形状板的自由振动分析的一个新的解析解法。
This paper gives a new analytical solution of the free vibration of an arbitrary-shaped plate with complex boundary conditions.
对自由液面、水底平面和岸壁的各种组合边界条件，在程序中应用映射技巧处理。
In this program, free water surface condition and boundary condition on seabed and bank are satisfied by means of images.
边界条件对耦合效应有较大的影响，较强的边界条件使椭圆板热弹耦合自由振动的频率变低，但振荡幅度增大。
The boundary conditions has strong influence on the coupling effect, the stronger it is, the smaller frequency of free vibration is but the larger amplitude is.
其中不少问题是非线性的，如带自由面的流动区域，边界条件即呈非线性。
Some engineering problems, especially those involving fluid free surface, are nonlinear in boundary conditions.
材料特性不仅取决于薛定谔方程的相互作用项，也决定于自由表面和不同材料界面处的边界条件。
Characteristics of materials depend not only the interaction terms in solution by Schrodinger equation but also more on the boundary condition at the border and interfaces of different specimens.
为此，本文剖析了科学自由的内涵及其边界条件，探讨了科技干预的合理性问题。
So this article expounds the connotations and the boundary of science freedom, and discusses the reasonability of interference in science and technology.
由动力学的一般解，导出了扇形板和扇形环板在广义弹性简支和广义刚性滑动边界条件下自由振动的频率方程和振型；
From these dynamic solutions, frequency and mode shapes of sectorial plate and sectorial annular plate under boundary conditions of GSS and GRS are derived.
本文用一种新型的数值方法枣微分容积法求解任意边界条件下超椭圆形中厚板的自由振动问题。
This paper presents a free vibration study of moderately thick super-elliptical plates with various boundary constraints using the differential cubature method.
本文推导了正弦级数与多项式的梁函数，它可以满足梁的简支、固定、自由等各种边界条件。
In this paper, sine series and polynomial beam functions are derived. They can satisfy various boundary conditions of beams such as the simply supported ends, fixed ends and free end.
细观元方法不增加结点自由度，却使得功能梯度板件的任意功能梯度变化、各种复杂边界条件得到反映。
In this method, functionally graded change, arbitrary form of plate and complex boundary conditions can be reflected without increasing the degrees of freedom.
本文提出一种一般解析方法——空间变量变换法，用以求解任意边界条件下圆柱厚壳自由振动问题。
In this paper, a general analytical method — space variable transform method is presented for solving free vibration problems of thick cylindrical shell with arbitrary boundary conditions.
文中选择了一个挠曲函数，它不但能满足所有自由边上的全部几何边界条件，而且也满足所有的内力边界条件。
We select a flex-ural function which satisfies not only all the geometric boundary conditions on free edges wholly but also the boundary conditions of the total internal forces.
以线性扩散波方程在自由下边界条件下的解析解为例，利用遗传算法来确定扩散波方程的参数。
The paper demonstrated the method for solving the parameters of the linear diffusive wave equation under free downstream condition by using genetic algorithms.
讨论在第二边界条件和有热源加速冰融化情况下冰水混合物自由边界问题。
Stefan problem of ice-water mixture is discussed under the condition of the second boundary and heat source accelerating to melt ice.
它严格满足双参数弹性地基上板的控制微分方程和自由边的边界条件和角点条件。
The solution strictly satisfies the differential equation of a plate on the two-parameter elastic model foundation, the boundary conditions of the free edges and the free corner conditions.
考虑到非线性的自由液面边界条件，用下潜涡环栅格法求解水翼绕流问题。
The nonlinear free surface boundary condition is considered and the hydrodynamics forces of the hydrofoil near the free surface are calculated by the submerged vortex lattice method.
通过数值计算，我们得到一维双原子链在自由边界与循环边界条件下的频谱。
Through numerical calculation, we get the frequency spectrum of one-dimensional diatomic chain in free and periodic boundary conditions.
因此，目前所有的解，均限于差分法及能量法所得的近似解。本文企图直接解微分方程，并满足包括自由角点的边界条件去求解。
As a consequence, the solutions now we have are all limited to such approximate ones as obtained by finite difference method, variational method and the method of finite elements.
因此，目前所有的解，均限于差分法及能量法所得的近似解。本文企图直接解微分方程，并满足包括自由角点的边界条件去求解。
As a consequence, the solutions now we have are all limited to such approximate ones as obtained by finite difference method, variational method and the method of finite elements.
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