中国舰船研究2016，Vol.11Issue(4)：72-78,7.DOI:10.3969/j.issn.1673-3185.2016.04.011
基于不同模型的正交加筋板低频振动和声辐射分析
Vibration and acoustic radiation characteristics of orthogonal stiffened plates based on different models
摘要
Abstract
The orthogonal stiffened plate is widely used in the field of marine engineering. Taking a simpli?fied model of stiffened plates as the research target, and based on the Ritz method and the energy function?al variation principle, the energy formulations of stiffened plates are deduced in this paper. For the orthogo?nal stiffened plate, two kinds of simplified methods (the orthotropic plate theory and the equivalent thick?ness method) are proposed. The analytical formulations of natural frequency of three stiffened plate models are discussed. It is observed that the analytical natural frequencies agree well with those from FEM results. Finally, the acoustic radiation characteristics of three stiffened plate models in the water, as well as in the air, are calculated. Overall, the proposed simplified method presents a new perspective for the vibration and low frequency acoustic radiation problem of orthogonal stiffened plates.关键词
正交加筋板/李兹法/正交异性板理论/相当板厚理论/声振特性Key words
orthogonal stiffened plate/Ritz method/orthotropic plate theory/equivalent thickness meth⁃od/vibration and acoustic radiation分类
交通工程引用本文复制引用
高双,朱翔,李天匀,王迪..基于不同模型的正交加筋板低频振动和声辐射分析[J].中国舰船研究,2016,11(4):72-78,7.基金项目
国家自然科学基金资助项目(51479079) （51479079）
船舶预研支撑技术基金资助项目(13J1.3.2) （13J1.3.2）
