单元的变形用符合几何边界条件的模态函数来表示。
The deflection of the element is represented by a series of mode functions that satisfy the conditions at the boundaries.
对几何边界条件的处理、单元网格的划分也会对面板的计算应力产生一定的影响。
The simulation of geometric boundary condition and the division of computation mesh also affect the computation result of the slab stress to some extent.
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.
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