期刊
JOURNAL OF VIBRATION AND CONTROL
卷 18, 期 5, 页码 712-732出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1077546311404269
关键词
Dynamics; rotor; uncertainties
资金
- French National Research Agency [ANR-07-JCJC-0059-01-CSD 2]
In this paper, the quantification of uncertainty effects on response variability in rotor systems is investigated. To avoid the use of Monte Carlo simulation (MCS), one of the most straightforward but computationally expensive tools, an alternative procedure is proposed. MCS builds statistics from responses obtained from sampling uncertain inputs by using a large number of runs. However, the method proposed here is based on the stochastic finite element method using polynomial chaos expansion. The efficiency and robustness of the method proposed is demonstrated through different numerical simulations in order to analyse the random response against uncertain parameters and random excitation to assess its accuracy and calculation time.
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