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

作　　者：刘春城[1] 甘新基[1] 

机构地区：[1]北华大学交通建筑工程学院,吉林吉林132013

出　　处：《北华大学学报（自然科学版）》2000年第5期447-451,共5页Journal of Beihua University（Natural Science）

基　　金：国家自然科学基金资助项目!(5 96 780 33)

摘　　要：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.

关 键 词：NEWMARK法 三角形板单元 局部效应 薄板问题 有限元法 结构动力响应 动内力 

分 类 号：O343.1[理学—固体力学]