On uncertainty quantification in vibroacoustic problems

被引：0

作者：

Sepahvand, K. ^{[1
]}

Marburg, S. ^{[1
]}

机构：

[1] Univ Bundeswehr, Inst Mech, Munich, Germany

来源：

EURODYN 2014: IX INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS | 2014年

关键词：

Uncertainty quantification; Stochastic FEM; Vibroacoustic; non-intrusive method; GENERALIZED POLYNOMIAL CHAOS; SENSITIVITY-ANALYSIS;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, we employ non-sampling techniques for numerical simulation of vibroacoustic problems including uncertain material parameters. The uncertain parameters are represented using the Karhunen-Loeve expansion and structural stochastic responses are approximated by means of generalized polynomial chaos expansion with deterministic unknown coefficients. The non-intrusive stochastic FEM is implemented calculate the unknown coefficients by generating samples of parameters for a deterministic FEM code. The numerical procedure has this potential to use commercial FEM codes as black box to discretize the spatial deterministic space and easy to apply in complex industrial problems. Efficiency of the method in comparison with the experimental results is studied.

引用

页码：3259 / 3263

页数：5

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