Uncertainty quantification in modal characteristics of viscoelastic damping structures by using integration approach of adaptive dimension reduction method and stochastic collocation method

T. Wang, C. Xu, N. Guo

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The adaptive dimension reduction method is combined with a stochastic collocation method to quantitatively estimate the variability of modal characteristics in viscoelastic damping structures. For the deterministic solver, the layer-wise finite element is employed to model the viscoelastic damping structures and the shift-invert iteration method is used to solve nonlinear eigenvalue problem. In the uncertainty quantification phase, the high-dimensional model is first decomposed into several low-dimensional component models by the adaptive dimension reduction method. Then, in each component model, the stochastic collocation method (SC) is used for constructing the approximate model with minimal model evaluations. The integration approach is illustrated on two examples. It is shown that the integration approach has efficiency and accuracy advantages over Monte Carlo Simulation and SC method.

源语言英语
主期刊名Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics
编辑W. Desmet, B. Pluymers, D. Moens, S. Vandemaele
出版商KU Leuven - Departement Werktuigkunde
3655-3666
页数12
ISBN(电子版)9789082893113
出版状态已出版 - 2020
活动2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020 - Leuven, 比利时
期限: 7 9月 20209 9月 2020

出版系列

姓名Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics

会议

会议2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020
国家/地区比利时
Leuven
时期7/09/209/09/20

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