Mobility Characteristics Analysis of Stiffened Laminated  Composite Plates for Ships

Lang Yan; Hong Ming

doi:10.3969/j.issn.1673-3185.2007.04.001

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Lang Yan, Hong Ming. Mobility Characteristics Analysis of Stiffened Laminated Composite Plates for Ships[J]. Chinese Journal of Ship Research, 2007, 2(4): 1-06. doi: 10.3969/j.issn.1673-3185.2007.04.001

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Mobility Characteristics Analysis of Stiffened Laminated Composite Plates for Ships

doi: 10.3969/j.issn.1673-3185.2007.04.001

Lang Yan,
Hong Ming

Department of Naval Architecture andOcean Engineering, Dalian University of Technology, Dalian 116024, China

Received Date: 2007-05-24
Accepted Date: 2007-08-20
Rev Recd Date: 2007-07-03
Publish Date: 2007-04-25

Abstract

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The natural vibration and mobility of stiffened laminated composite plate were investigated with the finite element method. Based on the first-order shear deformation theory for laminated composite plate, Mindlin shell elements with four nodes were utilized to obtain a discrete structure. Also the finite element dynamic equations of structure were formulated, and computer code was developed. The facts that the driving-point mobility and transfer-point mobility of the structure varies with the change of factors, e.g. stiffened plate＇s damping, exciting position, boundary condition and the number of the stiffened beams, were discussed. The calculation results could be used as a basis for further research of efficiency of power transfer and vibration isolation. A method for optimum design of vibration and acoustics could be obtained.
- composite laminated plate,
- first-order shear deformation theory,
- Mindlin shell element,
- driving-point and transfer-point mobility

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