A new approach for the stochastic analysis of finite element modelled structures with uncertain parameters

G.Falsone; N.Impollonia

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A new approach for the stochastic analysis of finite element modelled structures with uncertain parameters

机译：参数不确定的有限元建模结构随机分析的新方法

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A method for evaluating the static response of uncertain finite element (FE) discretised structures is presented. The method is comparable with the perturbation procedures from a computational point of view, but it overcomes the drawbacks related to these procedures. In fact the present method gives excellent level of accuracy, even for high amount of uncertainties. Moreover, it produces the exact solution for statically determinate structures. The accuracy is remarkable even in the evaluation of high order statistics and probability density function of the response, so that reliability consideration can be draws.

机译：提出了一种评估不确定有限元离散结构静响应的方法。从计算的角度来看，该方法可与微扰程序相媲美，但是它克服了与这些程序有关的缺点。实际上，即使对于大量不确定性，本方法也能提供极好的准确性。而且，它为静态确定的结构提供了精确的解决方案。即使在评估高阶统计量和响应的概率密度函数时，准确性也非常出色，因此可以得出可靠性考虑。

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《Computer Methods in Applied Mechanics and Engineering》 |2002年第44期|p.5067-5085|共19页
作者
G.Falsone; N.Impollonia;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类自动化基础理论;工程基础科学;
关键词
stochastic finite elment; reliability; uncertain sructures; natural modes;

机译：随机有限元可靠性;结构不确定;自然模式;

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2. A stochastic finite element dynamic analysis of structures with uncertain parameters [J] . S. Chakraborty, S. S. Dey International Journal of Mechanical Sciences . 1998,第11期

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4. A Spectral Stochastic Finite Element Method for Modal Analysis of structures with uncertain materials properties [C] . Jalaa AHMAD, Philippe BRESSOLETTE, Alaa CHATEAUNEUF International Conference on Noise and Vibration Engineering . 2009

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5. Reliability study of uncertain structures using stochastic finite elements. [D] . Liaw, Der-Guang Leslie. 1990

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8. Stochastic model of the NASA/MSFC ground facility for large space structures with uncertain parameters: The maximum entropy approach, part 2 [R] . Hsia, Wei Shen 1989

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A new approach for the stochastic analysis of finite element modelled structures with uncertain parameters

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