Modal and Structural FEM Analysis of a 50 ft Pleasure Yacht

Article Preview

Abstract:

In this paper a structural Finite Element analysis of a 50 ft pleasure vessel is presented. The study is performed under different loads conditions: modal analyses have been done in order to find the natural frequencies of the vessel, structural analyses to verify the strength of the vessel to design loads. The design loads for the vessel considered are computed according to RINA rules for the construction and classification of pleasure vessels [1]. Two different composites are used for the lamination: one is a monolithic sequence of short fibre and balanced glass lamina, used for the bottom of the vessel and for structural reinforcements, the other is a sandwich made of glass fibre composite skins and a PVC core, used for the main deck and sides of the vessel. All the analyses are performed by using Patran/Nastran™ finite element commercial software in order to identify critical areas where possible reinforcement or redesign needs to be considered.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

692-697

Citation:

Online since:

November 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] RES.6/E, 1995. Rules for the construction and classification of pleasure vessels. RINA publications.

Google Scholar

[2] Santos, F. M., Santos, J. M., Duarte, F., Soares, C. G., 2004. Finite element analysis of a 30ft one-off racer-cruiser yacht. MDY'04 I International Symposium on yacht design and production.

Google Scholar

[3] Ojeda, R., Prusty, B. G., Salas, M., 2004. Finite element investigation on the static response of a composite catamaran under slamming loads. Ocean Engineering (31), 901-929.

DOI: 10.1016/j.oceaneng.2003.08.008

Google Scholar

[4] Mancuso A., Parametric design of sailing hull shapes 2006 Ocean Engineering 33 (2) , pp.234-246.

DOI: 10.1016/j.oceaneng.2005.03.007

Google Scholar

[5] Wu, M., Moan, T., 1996. Linear and Nonlinear Hydroelastic Analysis of High-Speed Vessels. Journal of Ship Research, (40) 2, 1996.

DOI: 10.5957/jsr.1996.40.2.149

Google Scholar

[6] DNV, 1999. Rules for classification of high speed and light crafts. Det Norske Veritas rules.

Google Scholar

[7] MSC. Nastran, 2005. Linear Static Analysis, User' Guide. © MSC.Software Corporation.

Google Scholar

[8] Bamett A.R., Widrick T.W. Ludwiczak D.R. Closed-Form Static Analysis With Inertia Relief and Displacement-Dependent Loads Using a MSC/NASTRAN DMAP Alter. NASA TM 106836, 1995.

Google Scholar