Rohit, RJ and Ganguli, R (2022) Co-kriging based multi-fidelity uncertainty quantification of beam vibration using coarse and fine finite element meshes. In: International Journal for Computational Methods in Engineering Science and Mechanics, 23 (2). 147 -168.
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Abstract
Multi-fidelity models have exploded in popularity as they promise to circumvent the computational complexity of a high-fidelity model without sacrificing accuracy. In this paper, we demonstrate the process of building a multi-fidelity model and illustrate its advantage through an uncertainty quantification study using the beam vibration problem. A multi-fidelity co-kriging model is built with data from low- and high-fidelity models, which are finite element models with coarse and fine discretization, respectively. The co-kriging model’s predictive capabilities are excellent, achieving accuracy within 1% of the high-fidelity model while providing 98% computational savings over the high-fidelity model in the uncertainty quantification study.
Item Type: | Journal Article |
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Publication: | International Journal for Computational Methods in Engineering Science and Mechanics |
Publisher: | Bellwether Publishing, Ltd. |
Additional Information: | The copyright for this article belongs to Bellwether Publishing, Ltd. |
Keywords: | Beam vibration; co-kriging; Latin hypercube sampling; Monte Carlo simulation; multi-fidelity; uncertainty quantification |
Department/Centre: | Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering) |
Date Deposited: | 16 Aug 2021 10:28 |
Last Modified: | 16 Sep 2022 05:35 |
URI: | https://eprints.iisc.ac.in/id/eprint/69189 |
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