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Lack of knowledge in structural model validation
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DOI：10.1016/j.cma.2005.10.017.png)
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摘要
En 中文
This paper deals with the structural modeling of a family of similar, actual structures taking into account uncertainties and modeling errors. Only errors of the structural stiffness type are considered. We develop a new theory in which what we call the lack of knowledge (LOK) is defined through an internal variable, whose upper and lower bounds are stochastic, associated with each substructure. Two main questions are discussed: the impact of the basic LOKs on the predicted structural response and the reduction of the basic LOKs through the use of additional information. (c) 2005 Elsevier B.V. All rights reserved.
Keyword:
modeling
validation
lack of knowledge
structure
dynamics
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期刊
IF:
7.3
论文数:
1.3W
被引数:
5.6W
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Solving elliptic boundary value problems with uncertain coefficients by the finite element method: the stochastic formulation通过有限元方法解决具有不确定系数的椭圆边值问题: 随机公式
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