Computational analysis of statics of 3D truss systems with random parameters

机译：具有随机参数的3D桁架系统的静力学计算分析

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Numerical analysis of spatial truss systems described stochastically is presented in the paper. Structural random parameters are defined by their first two probabilistic moments. The main idea behind the formulation is based on the second-moment analysis of a random variable expressed in the perturbation form. Obtained hierarchical equations are solved for the first two probabilistic moments for nodal displacements and axial forces. Computational algorithms are worked out and implemented into an existing deterministic finite element code. Numerical aspects of the problem are thoroughly discussed and illustrative results for a middle-scale truss system are given.

机译：本文对随机描述的空间桁架系统进行了数值分析。结构随机参数由它们的前两个概率矩定义。公式背后的主要思想是基于对以扰动形式表示的随机变量的第二阶矩分析。对于节点位移和轴向力的前两个概率矩，求解获得的层级方程。计算算法被实施到现有的确定性有限元代码中。对该问题的数值方面进行了全面讨论，并给出了中型桁架系统的说明性结果。

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《International PhD Symposium in Civil Engineering vol.2; 20040616-19; Delft(NL)》|2004年|P.1135-1143|共9页
会议地点 Delft(NL)
作者
A.M. Kopciewicz; T.D. Hien;
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Technical University of Szczecin, Szczecin, Poland;

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原文格式 PDF
正文语种 eng
中图分类市政工程;
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4. Computational analysis of statics of 3D truss systems with random parameters [C] . A.M. Kopciewicz, T.D. Hien International PhD Symposium in Civil Engineering . 2004

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Computational analysis of statics of 3D truss systems with random parameters

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