Research on Modal Test for a Double-layered Stiffened Plate in Water

MATEC Web of Conferences Pub Date : 2023-01-01 DOI:10.1051/matecconf/202338001028

Peng Wang, Zhao Li, Jiandong Chen, Wei Li, Hao Zhang

引用次数: 0

Abstract

Madal performance is the basic characteristics of structures, which will help to further understand the vibration of structures. Besides, fluid (e.g. water) coupled with structure will strongly affact the modal performance of structure. To get clear the modal performance, Modal tests are conducted for two-layered plate both in air and in water, and modal frequency and mode shape are given. With comparative analysis of modal frequencies in these two cases, it’s shown that influence of fluid on structural vibration is obvious, which will results in significantly reduction of modal frequency, and the maximum reduction is the second mode, and it is more than 42%. But it’s also noted that influence of fluid on mode shape is little.

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水中双层加筋板模态试验研究

迈达尔性能是结构的基本特性，有助于进一步认识结构的振动。此外，流体(如水)与结构的耦合对结构的模态性能有很大的影响。为明确双层板的模态性能，对其在空气和水中进行了模态试验，给出了模态频率和模态振型。通过对比分析两种情况下的模态频率，可以看出流体对结构振动的影响是明显的，流体对结构振动的影响会导致模态频率的显著降低，其中第二模态频率的降低幅度最大，超过42%。但也注意到流体对模态振型的影响很小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

MATEC Web of Conferences

自引率

0.00%

发文量

342

审稿时长

6 weeks

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