Unfortunately , the numerating model used in such method is quite different from the actual instance , , and the constraints are to o simple , the effects of the side load , elastic modular of the stone body of the foundation and the compatible structural deformation are not involved in . due to the asymmetry of the spatial load , it is quite different between the analysis results and the test data 这种集中计算方法力学模型的建立与结构的实际受力情况出入较大，且对边界条件考虑过于简单，对边荷载的影响、基础岩体弹模的影响及结构本身变形协调一致等均未能一并考虑，对于空间受力不对称的状况，作为二维问题分析时计算结果与应力测试结果出入较大。
In this paper the flow field of falling film along the inner of vertical tube is simulated and it ' s the necessary base of the further research that includes characteristics of heat and mass transfer in the absorber under the fluctuant state . in this paper the ocean fisher ' s movement in the ocean is studied and the physical and the mathematical models of fisher are founded , then the expressions of the force by the movement are obtained . the expressions are combined with partial different equations of falling film under the static state , thus the mathematical model of the falling film under fluctuant state can be gained 本文首先研究了船舶在海洋中的运动，建立了船舶摇摆运动的简化物理模型和数学模型，得到了运动附加力的表达式；并在此基础上将吸收管的运动附加力表达式代入静止状态下液膜流动的数学模型中，即得到了摇摆状态下液膜流动的数学模型；然后对液膜流动的数学模型进行了简化，在假定了速度分布的条件下，得出了液膜流动的积分方程，经过以上简化就将求解三维问题转化成为求解二维问题；将积分方程离散后用数值计算的方法模拟了整个流场。
On the basis of thermal conduction equations the fe formulation of the stable and transient temperature fields are provided at first . as an example , the fe formulation of transient temperature fields for plane problems has been shown in detail , in which the space of structures is discrete by use of the finite element method while the time is discrete by use of the finite difference method 从热传导问题的基本方程出发，求得计算稳态和瞬态温度场的有限元一般格式，并以二维问题为例，推得求解瞬态温度场的有限元方程组，文中采用有限元法离散结构空间，有限差分法离散时间。
