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Numerical study of the eigenfrequencies of dry and submerged rectangular plates
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This study is an investigation of how accurately fluid-structure interaction can be modeled using a solid-acoustic model, letting an acoustic medium represent the fluid. The modeling results are compared with test results from a prevouis study on natural frequencies of submerged plates. 20 plate specimens are modeled that has the same material and physical properties as the tested plates. These plates are made of CFRP, GFRP, steel and aluminum. The results show very good agreement between numerical and experimental results with a difference of 0-3.1 % and a average difference of 0.9 %, for the first natural frequency. The results show that this type of modeling can serve as a refined analysis method for design work performed within the maritime industry.

Place, publisher, year, edition, pages
2015. , 17 p.
TRITA-AVE, ISSN 1651-7660 ; 2115:17
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-180250OAI: diva2:891915
Subject / course
Lightweight Structures
Available from: 2016-01-08 Created: 2016-01-08 Last updated: 2016-01-08Bibliographically approved

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