本文推导了在任意载荷激励下直角三角形板单元局部动力效应修正公式。

In this paper, the local dynamic effect modification formulation of rightangled triangle plate element under arbitrary excitation is presented.

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ROAM算法就是通过采用分解和合并方法实时地调整三角形网格，能交互式地实现观察依赖、局部可调整的地形网格化处理，生成多分辨率的地形模型。

ROAM method adopts split and merge operations to adjust triangle meshes, can interactively perform view-dependent, locally-adaptive terrain meshing and can construct multiresolution terrain model.

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采用局部剖分的方法来保证边界的完整性，不需要添加新的节点到原始表面三角形中。

To ensure the existence of boundary sides and faces, local tetrahedralization method is adopted, needing add no node into the origin surface triangulations.

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