基于Newmark法的三角形板单元局部效应修正

Partial Effect Modification of Triangle Plate Element Based on Newmark Method

在一般有限元法的基础上推导了三角形板单元局部效应修正公式，利用Newmark逐步积分法在不同荷载激励下对结构进行动力响应分析。计算结果表明，考虑局部效应可以使动内力计算结果更为准确。在进行大型复杂结构的动力响应分析时，通过考虑局部效应，可在计算模型大大简化的同时，获得较为精确的计算结果。

The modification formulation of triangle plate element based on general finite method has been put forward. Analyzing dynamic response of structure under different excitation by using newmark step by step integration method, it shows that the results have become more accurative when partial effect was considered. When analyzing dynamic response of large scale complicated structure, the computational model can be greatly simiplified by considering partial effect, moreover, the computational precision has been greatly increased.