Issue |
MATEC Web Conf.
Volume 382, 2023
6th International Conference on Advances in Materials, Machinery, Electronics (AMME 2023)
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Article Number | 01024 | |
Number of page(s) | 8 | |
DOI | https://doi.org/10.1051/matecconf/202338201024 | |
Published online | 26 June 2023 |
Time Response and Natural Frequency Analysis for Structures with Interval Parameters
Wuhan Second Ship Design and Research Institute, Wuhan, Hubei 430205, China
* Corresponding author: 549931866@qq.com
This paper deals with the evaluations of lower and upper bounds of dynamic responses and natural frequencies for structures with uncertain interval parameters. The structural physical parameters, geometric dimensions and initial conditions can be considered as interval parameters. The modified Chebyshev interval method (MCIM) is presented to handle the uncertainties. In comparison with the Chebyshev interval method (CIM), MICM provides with tighter bounds of the time responses and natural frequencies without a significant increase in computation time. Monte Carlo method is also used to provide with exact bounds. MICM, CIM and Monte Carlo method are applied for structures with interval parameters, and the efficiency and accuracy of CIM and MCIM are verified.
Key words: Interval uncertainty / structure / time response / natural frequency / Chebyshev interval method / finite element analysis
© The Authors, published by EDP Sciences, 2023
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