Numerical study of the eigenfrequencies of dry and submerged rectangular plates
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
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
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-180250OAI: oai:DiVA.org:kth-180250DiVA: diva2:891915
Subject / course