Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7175784 | Journal of Fluids and Structures | 2018 | 18 Pages |
Abstract
A modeled bridge subjected to monochromatic wave train attack was computationally modeled in three dimensions using commercially available software. A number of slightly different geometric variations were computed to learn more about the high-frequency forcing component and to further investigate venting as a mitigation procedure for low lying bridges vulnerable to wave attack. Results appeared to show that the high-frequency component is the result of a combination of reflective effects and trapped air. Additionally, the vertical quasi-static force also appears to be partially caused by trapped air. Transverse venting was investigated as a means to reduce high-frequency forces on the bridges, and these measures appear to be highly effective. Finally a two-dimensional comparison was conducted. Results appear to indicate that while two-dimensional modeling provides valuable insight into the physics associated with this problem, it may miss effects due to lateral air movement.
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Authors
Raphael Crowley, Corbin Robeck, Philip Dompe,