针对I型夹芯夹层板的入水砰击动力响应特性，基于流固耦合方法并考虑空气层的影响，构建气-液-固三相耦合模型，对不同入水速度下触水面板的砰击压力时历、砰击压力分布和砰击变形分布等进行分析，并与同等质量的加筋板进行对比。对I型夹芯夹层板进行结构参数化分析，改变背水面板、芯层和触水面板的厚度，评估其对I型夹芯夹层板的砰击压力和砰击变形的影响。结果表明，与加筋板相比，尽管I型夹芯夹层板砰击压力略有增大，但砰击变形却大幅减小。在保证背水面板厚度的情况下，可以通过适当增大芯层和触水面板的厚度用于提高I型夹芯夹层板的抗入水砰击性能。
In order to study the slamming dynamic response characteristics of I-core sandwich plate, a three phase coupling model including gas, liquid and solid was constructed based on fluid-solid interaction method and considering the air cushion effect. The time history of slamming pressure, slamming pressure distribution and slamming deformation distribution of water-contact plate were analyzed under different falling velocity, and compared with that of stiffened plate with the same mass. The structural parametric analysis of I-core sandwich plate was carried out by changing the thickness of backwater plate, I-core and water contact plate to evaluate their effect on slamming pressure and slamming deformation. Results show that compared with stiffened plates, even though the slamming pressure of I-core sandwich plate increases slightly, the slamming deformation decreases greatly. Under the condition of keeping the thickness of backwater plate the same, the anti slamming property of I-core sandwich plate can be improved by increasing the thickness of I-core and water contact plate appropriately.
2020,42(11): 40-44 收稿日期：2020-01-05
DOI：10.3404/j.issn.1672-7649.2020.11.008
分类号：TM344.1
作者简介：朱显玲(1976-)，女，副教授，主要从事船舶技术设计工作
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