有限元和直接积分法瞬态动力计算的时空离散协调问题
Spatlal-Temporal Discrete Coordination of FEM and Direct Integral Method for Transient Dynamic Problems
-
摘要: 本文对有限元和直接积分法瞬态动力计算的时空离散协调问题进行了研究,本文分别分析了空间离散和时间离散所引起的数值误差,提出了均衡空间离散引起的能量误差和时间离散引起的能量误差的原则,并给出时空离散协调的前处理方案和自适应方案。Abstract: In this paper, the coordination of spatial-temporal discrets of FEM and direct integral method is investigates.By analyzing the numespatial-temporal discrete,the principle of balancing the principle of balancing the energy error induced by spatial discrete and the energy error induced by temporal discrete is presented, and the prioriprocess and adaptive method for the coordination of spatial discerand temporal discrete is obtained.
-
Key words:
- FEM /
- direct integration /
- spatial-temporal discrete /
- coordination
-
[1] Strong, G, and G, J.Fig, An Analysis of the Finite Element Method, Prentice-Hall(1973). [2] Bathe, K.J.,Finite Element Procedures in Engineering Analgsis, Prentice-Hall(1982). [3] Zienkiewicz, O, C.and Y, M, Xie, A simple local error estimator and adaptive time-stepping for dynamic analysis, Earthquake Eng, Struct, Dyn,,21(1991),871-887. [4] Zienkiewicz, O, C.,Computational mechanics today, Int, T.Numer, Methods Eng,,34(1992), 9-33. [5] Zeng, L, F,,N.E, Wiberg and L, Bernspang, An adaptive finite element procedure for 2-D dynamic transient analysis using direction integration, Int. I.Numer, Methods Eng.,34(1992),997-1014. [6] Zienkiewicz, O, C, and J.Z.Zhu, The superconvergent patch recovery and a posteriori error estimates Part j:The recovery technique, Int.J.Numer,Methods Eng,,33(1992),1331-1364. -
点击查看大图
计量
- 文章访问数: 1894
- HTML全文浏览量: 148
- PDF下载量: 393
- 被引次数: 0
下载:
